author | Jan Vrany <jan.vrany@fit.cvut.cz> |
Mon, 20 Dec 2010 07:13:27 +0000 | |
branch | jv |
changeset 17814 | b75a7f0c346b |
parent 17807 | 06cc6c49e291 |
child 17834 | 04ff72c5039a |
permissions | -rw-r--r-- |
1 | 1 |
" |
5 | 2 |
COPYRIGHT (c) 1988 by Claus Gittinger |
175 | 3 |
All Rights Reserved |
1 | 4 |
|
5 |
This software is furnished under a license and may be used |
|
6 |
only in accordance with the terms of that license and with the |
|
7 |
inclusion of the above copyright notice. This software may not |
|
8 |
be provided or otherwise made available to, or used by, any |
|
9 |
other person. No title to or ownership of the software is |
|
10 |
hereby transferred. |
|
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" |
|
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"{ Package: 'stx:libbasic' }" |
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||
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LimitedPrecisionReal variableByteSubclass:#Float |
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instanceVariableNames:'' |
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classVariableNames:'DefaultPrintFormat Pi E Halfpi HalfpiNegative Twopi |
17 |
RadiansPerDegree Ln2 Ln10 Sqrt2' |
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poolDictionaries:'' |
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category:'Magnitude-Numbers' |
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! |
21 |
||
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!Float primitiveDefinitions! |
23 |
%{ |
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#include <errno.h> |
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#ifndef __OPTIMIZE__ |
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# define __OPTIMIZE__ |
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#endif |
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#define __USE_ISOC9X 1 |
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#define __USE_ISOC99 1 |
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#include <math.h> |
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/* |
35 |
* on some systems errno is a macro ... check for it here |
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*/ |
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#ifndef errno |
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extern errno; |
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#endif |
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||
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#if defined (_AIX) |
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# include <float.h> |
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#endif |
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#if defined(IRIX) |
46 |
# include <nan.h> |
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#endif |
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#if defined(LINUX) |
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# ifndef NAN |
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# include <bits/nan.h> |
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# endif |
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#endif |
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#if defined(solaris) || defined(sunos) |
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# include <nan.h> |
57 |
#endif |
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/* |
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* sigh - some systems define that stuff; others dont. |
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* (AIX even declares them as macros, so an external decl |
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* will not work below ... |
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*/ |
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#if !defined(_AIX) && !defined(NEXT3) |
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# ifdef acos |
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double acos(); |
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# endif |
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# ifdef asin |
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double asin(); |
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# endif |
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# ifndef atan |
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double atan(); |
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# endif |
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# ifndef cos |
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double cos(); |
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# endif |
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# ifndef sin |
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double sin(); |
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# endif |
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# ifndef pow |
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double pow(); |
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# endif |
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# ifndef log |
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double log(); |
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# endif |
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# ifndef exp |
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double exp(); |
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# endif |
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# ifndef sqrt |
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double sqrt(); |
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# endif |
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# ifndef tan |
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double tan(); |
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# endif |
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||
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#endif /* not AIX */ |
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#ifdef WIN32 |
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/* |
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* no finite(x) ? |
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* no isnan(x) ? |
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*/ |
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# ifndef isnan |
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# define isnan(x) \ |
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((((unsigned int *)(&x))[0] == 0x00000000) && \ |
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(((unsigned int *)(&x))[1] == 0xFFF80000)) |
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# endif |
109 |
||
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# ifndef isPositiveInfinity |
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# define isPositiveInfinity(x) \ |
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((((unsigned int *)(&x))[0] == 0x00000000) && \ |
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(((unsigned int *)(&x))[1] == 0x7FF00000)) |
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# endif |
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# ifndef isNegativeInfinity |
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# define isPositiveInfinity(x) \ |
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((((unsigned int *)(&x))[0] == 0x00000000) && \ |
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(((unsigned int *)(&x))[1] == 0xFFF00000)) |
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# endif |
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# ifndef isinf |
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# define isinf(x) \ |
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((((unsigned int *)(&x))[0] == 0x00000000) && \ |
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((((unsigned int *)(&x))[1] & 0x7FF00000) == 0x7FF00000)) |
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# endif |
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# ifndef isfinite |
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# define isfinite(x) (!isinf(x) && !isnan(x)) |
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# endif |
131 |
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# define NO_ASINH |
133 |
# define NO_ACOSH |
|
134 |
# define NO_ATANH |
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#endif /* WIN32 */ |
136 |
||
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#ifdef solaris |
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# ifndef isfinite |
|
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# define isfinite(f) finite((double)(f)) |
|
140 |
# endif |
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#endif |
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#ifdef realIX |
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# ifndef isfinite |
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# define isfinite(x) 1 |
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# endif |
147 |
#endif |
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148 |
||
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#ifndef NEXT3 |
150 |
# ifndef ceil |
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double ceil(); |
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152 |
double floor(); |
|
153 |
# endif |
|
154 |
#endif |
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155 |
||
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%} |
157 |
! ! |
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158 |
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!Float class methodsFor:'documentation'! |
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88 | 161 |
copyright |
162 |
" |
|
163 |
COPYRIGHT (c) 1988 by Claus Gittinger |
|
175 | 164 |
All Rights Reserved |
88 | 165 |
|
166 |
This software is furnished under a license and may be used |
|
167 |
only in accordance with the terms of that license and with the |
|
168 |
inclusion of the above copyright notice. This software may not |
|
169 |
be provided or otherwise made available to, or used by, any |
|
170 |
other person. No title to or ownership of the software is |
|
171 |
hereby transferred. |
|
172 |
" |
|
173 |
! |
|
174 |
||
68 | 175 |
documentation |
176 |
" |
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ShortFloats represent rational numbers with limited precision. |
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They use the C-compilers 'double' format, which is usually the 8byte IEE double float format. |
179 |
||
180 |
Floats give you 64 bit floats. |
|
181 |
In contrast to ShortFloats and LongFloats. |
|
182 |
||
183 |
WARNING: |
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The layout of Float instances is known by the runtime system and the compiler; |
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185 |
you may not add instance variables here. |
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186 |
Also, subclassing is complicated by the fact, that the VM creates floats/shortFloats, |
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187 |
and does some float-checks by an identity compare with the Float-class. |
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188 |
(i.e. your subclasses instances may not be recognized as float-like objects, |
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189 |
thus mixed mode arithmetic will always coerce them, effectively slowing things down). |
1 | 190 |
|
68 | 191 |
Notice, that Floats are defined as Byte-array to prevent the garbage collector |
192 |
from going into the value ... otherwise I needed a special case in many places. |
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193 |
||
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194 |
Also notice, that ST/X Floats are what Doubles are in ST-80 - this may change |
68 | 195 |
in one of the next versions (at least on machines, which provide different float |
6674 | 196 |
and double types in their C-compiler). |
197 |
The reason for doung this was to be compatible to both Digitalk and ParcPlace smalltalk |
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198 |
implementations |
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(ParcPlace uses a 4-byte Float and an 8-byte Double class, in contrast to |
200 |
Digitalk, which has an 8-byte Float class). |
|
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Thus, by providing an 8-byte Float class, code would not loose precicion |
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(although some memory is wasted when porting from VW). |
6674 | 203 |
As Digitalk is dead now, things could (should) now be made to be compatible with VW. |
204 |
Notice that ST/X provides an alias called Double, and an extra ShortFloat class, which has 4-byte |
|
205 |
instances. |
|
68 | 206 |
|
1892 | 207 |
Mixed mode arithmetic: |
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float op float -> float |
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209 |
float op fix -> float |
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210 |
float op fraction -> float |
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211 |
float op integer -> float |
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212 |
float op shortFloat -> float |
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213 |
float op longFloat -> longFloat |
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float op complex -> complex |
1892 | 215 |
|
7405 | 216 |
Representation: |
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217 |
64bit double precision IEE floats |
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218 |
53 bit mantissa, |
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219 |
11 bit exponent, |
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220 |
15 decimal digits (approx) |
7405 | 221 |
|
222 |
Range and Precision of Storage Formats: see LimitedPrecisionReal >> documentation |
|
85 | 223 |
|
7380 | 224 |
[author:] |
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|
225 |
Claus Gittinger |
7380 | 226 |
|
1295 | 227 |
[see also:] |
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228 |
Number |
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229 |
ShortFloat LongFloat Fraction FixedPoint Integer Complex |
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230 |
FloatArray DoubleArray |
68 | 231 |
" |
2215 | 232 |
! |
233 |
||
234 |
errorHandling |
|
235 |
" |
|
236 |
Floating point error handling and signalling depends on the systems |
|
237 |
(actually: the C-runtime systems) ability to handle floating point errors. |
|
238 |
Most systems report errors by raising an OS floatingPoint exception, |
|
239 |
which is mapped to a fpExceptionInterrupt in ST/X. |
|
240 |
However, some systems do return NaN as result. |
|
241 |
||
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242 |
Currently, ST/X does not care specially for these systems - it maybe added |
2215 | 243 |
easily, if there is sufficient customer interest, though. |
244 |
||
245 |
Try: |
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246 |
|f1 f2| |
2215 | 247 |
|
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248 |
f1 := 1.0. |
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249 |
f2 := 0.0. |
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250 |
f1 / f2 |
2215 | 251 |
|
252 |
or: |
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253 |
2 arcSin |
2215 | 254 |
" |
68 | 255 |
! ! |
1 | 256 |
|
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257 |
!Float class methodsFor:'instance creation'! |
1 | 258 |
|
259 |
basicNew |
|
260 |
"return a new float - here we return 0.0 |
|
261 |
- floats are usually NOT created this way ... |
|
262 |
Its implemented here to allow things like binary store & load |
|
263 |
of floats. (but even this support will go away eventually, its not |
|
264 |
a good idea to store the bits of a float - the reader might have a |
|
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265 |
totally different representation - so floats will eventually be |
13 | 266 |
binary stored in a device independent format." |
1 | 267 |
|
268 |
%{ /* NOCONTEXT */ |
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269 |
OBJ newFloat; |
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diff
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|
271 |
__qMKFLOAT(newFloat, 0.0); |
1206
9d23c1f5e4d3
use quicker MKFLOAT in FLoat>>basicNew
Claus Gittinger <cg@exept.de>
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diff
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|
272 |
RETURN (newFloat); |
1 | 273 |
%} |
3163
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parents:
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diff
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|
274 |
! |
1206
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use quicker MKFLOAT in FLoat>>basicNew
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
275 |
|
4295 | 276 |
fastFromString:aString at:startIndex |
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|
277 |
"return the next Float from the string starting at startIndex. |
4295 | 278 |
No spaces are skipped. |
279 |
||
280 |
This is a specially tuned entry (using a low-level C-call), which |
|
281 |
returns garbage if the argument string is not a valid float number. |
|
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|
282 |
It has been added to allow high speed string decomposition into numbers, |
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|
283 |
especially for mass-data." |
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|
284 |
|
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|
285 |
%{ /* NOCONTEXT */ |
17735 | 286 |
if (__isStringLike(aString) && __isSmallInteger(startIndex)) { |
287 |
char *cp = (char *)(__stringVal(aString)); |
|
288 |
int idx = __intVal(startIndex) - 1; |
|
289 |
double atof(); |
|
290 |
double val; |
|
291 |
||
292 |
if ((unsigned)idx < __stringSize(aString)) { |
|
293 |
val = atof(cp + idx); |
|
294 |
RETURN (__MKFLOAT(val)); |
|
295 |
} |
|
4295 | 296 |
} |
297 |
%}. |
|
298 |
self primitiveFailed. |
|
299 |
||
300 |
" |
|
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|
301 |
Float fastFromString:'123.45' at:1 |
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changeset
|
302 |
Float fastFromString:'123.45' at:2 |
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changeset
|
303 |
Float fastFromString:'123.45E4' at:1 |
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changeset
|
304 |
Float fastFromString:'hello123.45E4' at:6 |
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changeset
|
305 |
Float fastFromString:'12345' at:1 |
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changeset
|
306 |
Float fastFromString:'12345' at:2 |
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changeset
|
307 |
Float fastFromString:'12345' at:3 |
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changeset
|
308 |
Float fastFromString:'12345' at:4 |
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changeset
|
309 |
Float fastFromString:'12345' at:5 |
a1892eeca6c0
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changeset
|
310 |
Float fastFromString:'12345' at:6 |
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changeset
|
311 |
Float fastFromString:'12345' at:0 |
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changeset
|
312 |
Float fastFromString:'hello123.45E4' at:1 |
4295 | 313 |
|
314 |
Time millisecondsToRun:[ |
|
17735 | 315 |
100000 timesRepeat:[ |
316 |
Float readFrom:'123.45' |
|
317 |
] |
|
4295 | 318 |
] |
319 |
" |
|
320 |
||
321 |
" |
|
322 |
Time millisecondsToRun:[ |
|
17735 | 323 |
100000 timesRepeat:[ |
324 |
Float fastFromString:'123.45' at:1 |
|
325 |
] |
|
4295 | 326 |
] |
327 |
" |
|
328 |
! |
|
329 |
||
3279 | 330 |
fromVAXFloatBytes:b1 b2:b2 b3:b3 b4:b4 |
17732
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Jan Vrany <jan.vrany@fit.cvut.cz>
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changeset
|
331 |
"creates a double, given the four vax float bytes to an ieee double. |
3427
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
332 |
For NaNs and Infinity, nil is returned. |
3279 | 333 |
" |
334 |
||
335 |
%{ /* NOCONTEXT */ |
|
336 |
||
337 |
REGISTER union { |
|
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
338 |
unsigned char b[4]; |
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
339 |
unsigned int l; |
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
340 |
float f; |
3279 | 341 |
} r; |
342 |
||
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8635
diff
changeset
|
343 |
#ifdef __LSBFIRST__ |
3279 | 344 |
r.b[3] = __intVal( b2 ); |
345 |
r.b[2] = __intVal( b1 ); |
|
346 |
r.b[1] = __intVal( b4 ); |
|
347 |
r.b[0] = __intVal( b3 ); |
|
348 |
#else |
|
349 |
r.b[0] = __intVal( b2 ); |
|
350 |
r.b[1] = __intVal( b1 ); |
|
351 |
r.b[2] = __intVal( b4 ); |
|
352 |
r.b[3] = __intVal( b3 ); |
|
353 |
#endif |
|
354 |
if( (r.l & 0xff800000) != 0x80000000 ) |
|
355 |
{ |
|
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
356 |
if( (r.l & 0x7f800000) > 0x01000000 ) |
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
357 |
r.l -= 0x01000000; |
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
358 |
else |
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
359 |
r.l = 0; |
3279 | 360 |
|
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
361 |
RETURN( __MKFLOAT(r.f) ); |
3279 | 362 |
} |
363 |
%}. |
|
364 |
^ nil |
|
365 |
! |
|
366 |
||
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
367 |
readFrom:aStringOrStream onError:exceptionBlock |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
368 |
"read a float from a string" |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
369 |
|
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
370 |
|num| |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
371 |
|
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
372 |
num := super readFrom:aStringOrStream onError:nil. |
17732
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trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
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changeset
|
373 |
num isNil ifTrue:[ |
17814 | 374 |
^ exceptionBlock value |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
375 |
]. |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
376 |
^ num asFloat |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
377 |
|
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
378 |
" |
17814 | 379 |
Float readFrom:'.1' |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
380 |
Float readFrom:'0.1' |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
381 |
Float readFrom:'0' |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
382 |
" |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
383 |
|
17814 | 384 |
"Created: / 07-01-1998 / 16:17:19 / cg" |
385 |
"Modified: / 23-11-2010 / 14:35:41 / cg" |
|
1 | 386 |
! ! |
387 |
||
17765 | 388 |
!Float class methodsFor:'accessing'! |
389 |
||
390 |
defaultPrintFormat |
|
391 |
^ DefaultPrintFormat |
|
392 |
! |
|
393 |
||
394 |
defaultPrintFormat:something |
|
395 |
DefaultPrintFormat := something. |
|
396 |
! ! |
|
397 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
398 |
!Float class methodsFor:'binary storage'! |
701 | 399 |
|
1198
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
400 |
readBinaryIEEEDoubleFrom:aStream |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
401 |
"read a float from the binary stream, aStream, |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
402 |
interpreting the next bytes as an IEEE formatted 8-byte float" |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
403 |
|
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
404 |
|f| |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
405 |
|
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
406 |
f := self basicNew. |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
407 |
self readBinaryIEEEDoubleFrom:aStream into:f. |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
408 |
^ f |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
409 |
|
9637 | 410 |
"not part of libboss, as this is also used by others (TIFFReader)" |
411 |
||
412 |
"Created: / 16-04-1996 / 20:59:59 / cg" |
|
413 |
"Modified: / 23-08-2006 / 16:00:42 / cg" |
|
701 | 414 |
! |
415 |
||
416 |
readBinaryIEEEDoubleFrom:aStream into:aFloat |
|
417 |
"read the receivers value from the binary stream, aStream, |
|
418 |
interpreting the next bytes as an IEEE formatted 8-byte float" |
|
419 |
||
420 |
" |
|
421 |
this implementation is wrong: does not work on non-IEEE machines |
|
422 |
(to date all machines where ST/X is running on use |
|
423 |
IEEE float format. Need more here, when porting ST/X to 370's) |
|
424 |
" |
|
3427
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
425 |
self isIEEEFormat ifFalse:[self error:'unsupported operation']. |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
426 |
|
701 | 427 |
UninterpretedBytes isBigEndian ifFalse:[ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
428 |
"swap the bytes" |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
429 |
8 to:1 by:-1 do:[:i | |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
430 |
aFloat basicAt:i put:(aStream next) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
431 |
]. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
432 |
^ self |
701 | 433 |
]. |
434 |
1 to:8 do:[:i | |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
435 |
aFloat basicAt:i put:aStream next |
701 | 436 |
] |
9637 | 437 |
|
438 |
"not part of libboss, as this is also used by others (TIFFReader)" |
|
439 |
||
440 |
"Modified: / 23-08-2006 / 16:00:37 / cg" |
|
701 | 441 |
! |
442 |
||
443 |
storeBinaryIEEEDouble:aFloat on:aStream |
|
444 |
"store aFloat as an IEEE formatted 8-byte float |
|
445 |
onto the binary stream, aStream" |
|
446 |
||
447 |
" |
|
448 |
this implementation is wrong: does not work on non-IEEE machines |
|
449 |
(to date all machines where ST/X is running on use |
|
450 |
IEEE float format. Need more here, when porting ST/X to 370's) |
|
451 |
" |
|
3427
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
452 |
self isIEEEFormat ifFalse:[self error:'unsupported operation']. |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
453 |
|
701 | 454 |
UninterpretedBytes isBigEndian ifFalse:[ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
455 |
"swap the bytes" |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
456 |
8 to:1 by:-1 do:[:i | |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
457 |
aStream nextPut:(aFloat basicAt:i). |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
458 |
]. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
459 |
^ self |
701 | 460 |
]. |
461 |
1 to:8 do:[:i | |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
462 |
aStream nextPut:(aFloat basicAt:i). |
701 | 463 |
]. |
9637 | 464 |
|
465 |
"not part of libboss, as this is also used by others (TIFFReader)" |
|
466 |
||
467 |
"Modified: / 23-08-2006 / 16:00:47 / cg" |
|
701 | 468 |
! ! |
469 |
||
7441 | 470 |
!Float class methodsFor:'class initialization'! |
471 |
||
472 |
initialize |
|
17765 | 473 |
DefaultPrintFormat := '.15'. "/ print 15 valid digits |
10604 | 474 |
Pi := 3.14159265358979323846264338327950288419716939937510582097494459. |
475 |
Halfpi := Pi / 2.0. |
|
476 |
HalfpiNegative := Halfpi negated. |
|
477 |
Twopi := Pi * 2.0. |
|
478 |
E := 2.7182818284590452353602874713526625. |
|
479 |
Sqrt2 := 1.41421356237309504880168872420969808. |
|
480 |
RadiansPerDegree := Pi / 180.0. |
|
481 |
Ln2 := 0.69314718055994530941723212145817657. |
|
482 |
Ln10 := 10.0 ln. |
|
483 |
||
484 |
" |
|
485 |
self initialize |
|
486 |
" |
|
7441 | 487 |
|
488 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
489 |
DefaultPrintFormat := '.9'. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
490 |
Float pi printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
491 |
|
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
492 |
DefaultPrintFormat := '.6'. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
493 |
Float pi printString. |
7441 | 494 |
" |
10604 | 495 |
|
496 |
"Modified: / 07-06-2007 / 21:17:53 / cg" |
|
7441 | 497 |
! ! |
498 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
499 |
!Float class methodsFor:'constants'! |
1 | 500 |
|
3945
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
501 |
NaN |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
502 |
"return the constant NaN (not a Number). |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
503 |
Do not use (yet) - for now, this is only defined for a |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
504 |
few selected architectures." |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
505 |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
506 |
%{ /* NOCONTEXT */ |
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8635
diff
changeset
|
507 |
#if defined(LINUX) && defined(__i386__) |
3955 | 508 |
# ifdef NAN |
509 |
RETURN (__MKFLOAT(NAN)); |
|
510 |
# else |
|
3945
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
511 |
RETURN (__MKFLOAT(_SNAN)); |
3955 | 512 |
# endif |
3945
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
513 |
#endif |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
514 |
%}. |
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
515 |
^ super NaN |
3945
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
516 |
|
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
517 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
518 |
Float NaN |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
519 |
Float NaN + 0.0 |
3945
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
520 |
Float NaN + Float NaN |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
521 |
0.0 + Float NaN |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
522 |
" |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
523 |
! |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
524 |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
525 |
e |
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
526 |
"return the constant e as Float" |
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
527 |
|
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
528 |
"/ dont expect this many valid digits on all machines; |
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
529 |
"/ The actual precision is very CPU specific. |
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
530 |
|
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
531 |
^ 2.7182818284590452353602874713526625 |
6341 | 532 |
! |
533 |
||
10604 | 534 |
ln2 |
535 |
"/ dont expect this many valid digits on all machines; |
|
536 |
"/ The actual precision is very CPU specific. |
|
537 |
||
538 |
^ 0.69314718055994530941723212145817657. |
|
539 |
||
540 |
"Created: / 07-06-2007 / 21:11:55 / cg" |
|
541 |
! |
|
542 |
||
701 | 543 |
pi |
1260 | 544 |
"return the constant pi as Float" |
1 | 545 |
|
3244 | 546 |
"/ dont expect this many valid digits on all machines; |
547 |
"/ The actual precision is very CPU specific. |
|
548 |
||
6063 | 549 |
^ 3.14159265358979323846264338327950288419716939937510582097494459 |
1260 | 550 |
|
551 |
"Modified: 23.4.1996 / 09:27:02 / cg" |
|
1 | 552 |
! |
553 |
||
10604 | 554 |
sqrt2 |
555 |
"/ dont expect this many valid digits on all machines; |
|
556 |
"/ The actual precision is very CPU specific. |
|
557 |
||
558 |
^ 1.41421356237309504880168872420969808 |
|
559 |
||
560 |
"Created: / 07-06-2007 / 21:12:33 / cg" |
|
561 |
! |
|
562 |
||
1 | 563 |
unity |
1260 | 564 |
"return the neutral element for multiplication (1.0) as Float" |
1 | 565 |
|
566 |
^ 1.0 |
|
1260 | 567 |
|
568 |
"Modified: 23.4.1996 / 09:27:09 / cg" |
|
1 | 569 |
! |
570 |
||
701 | 571 |
zero |
1260 | 572 |
"return the neutral element for addition (0.0) as Float" |
1 | 573 |
|
701 | 574 |
^ 0.0 |
1260 | 575 |
|
576 |
"Modified: 23.4.1996 / 09:27:15 / cg" |
|
1 | 577 |
! ! |
578 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
579 |
!Float class methodsFor:'queries'! |
3 | 580 |
|
6898 | 581 |
exponentCharacter |
582 |
^ $d |
|
583 |
! |
|
584 |
||
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
585 |
hasSharedInstances |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
586 |
"return true if this class has shared instances, that is, instances |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
587 |
with the same value are identical. |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
588 |
Although not really shared, floats should be treated |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
589 |
so, to be independent of the implementation of the arithmetic methods." |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
590 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
591 |
^ true |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
592 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
593 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
594 |
! |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
595 |
|
3 | 596 |
isBuiltInClass |
1264 | 597 |
"return true if this class is known by the run-time-system. |
598 |
Here, true is returned for myself, false for subclasses." |
|
3 | 599 |
|
600 |
^ self == Float |
|
1264 | 601 |
|
602 |
"Modified: 23.4.1996 / 15:59:04 / cg" |
|
3427
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
603 |
! |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
604 |
|
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
605 |
isIEEEFormat |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
606 |
"return true, if this machine represents floats in IEEE format. |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
607 |
Currently, no support is provided for non-ieee machines |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
608 |
to convert their floats into this (which is only relevant, |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
609 |
if such a machine wants to send floats as binary to some other |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
610 |
machine). |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
611 |
Machines with non-IEEE format are VAXed and IBM370-type systems |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
612 |
(among others). Today, most systems use IEEE format floats." |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
613 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
614 |
^ true "/ this may be a lie |
7355 | 615 |
! |
616 |
||
617 |
numBitsInExponent |
|
618 |
"answer the number of bits in the exponent |
|
619 |
This is an IEEE float, where 11 bits are available: |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
620 |
seeeeeee eeeemmmm mmmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm |
7355 | 621 |
" |
622 |
||
623 |
^ 11 |
|
624 |
! |
|
625 |
||
626 |
numBitsInMantissa |
|
627 |
"answer the number of bits in the mantissa. |
|
628 |
This is an IEEE double, where 52 bits (the hidden one is not counted here) are available: |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
629 |
seeeeeee eeeemmmm mmmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm |
7355 | 630 |
" |
631 |
||
632 |
^ 52 |
|
633 |
! |
|
634 |
||
635 |
precision |
|
636 |
"answer the precision of a Float (in bits) |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
637 |
This is an IEEE double, where only the fraction from the normalized mantissa is stored |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
638 |
and so there is a hidden bit and the mantissa is actually represented |
9150 | 639 |
by 53 binary digits (although only 52 are needed in the binary representation)" |
7355 | 640 |
|
641 |
^ 53 |
|
642 |
! |
|
643 |
||
644 |
radix |
|
645 |
"answer the radix of a Floats exponent |
|
646 |
This is an IEEE float, which is represented as binary" |
|
647 |
||
8635 | 648 |
^ 2 "must be careful here, whenever ST/X is used on VAX or a 370" |
3 | 649 |
! ! |
650 |
||
1 | 651 |
!Float methodsFor:'arithmetic'! |
652 |
||
701 | 653 |
* aNumber |
11733 | 654 |
"return the product of the receiver and the argument." |
701 | 655 |
|
656 |
%{ /* NOCONTEXT */ |
|
657 |
||
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
658 |
/* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
659 |
* notice: |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
660 |
* the following inline code handles some common cases, |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
661 |
* and exists as an optimization, to speed up those cases. |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
662 |
* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
663 |
* Conceptionally, (and for most other argument types), |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
664 |
* mixed arithmetic is implemented by double dispatching |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
665 |
* (see the message send at the bottom) |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
666 |
*/ |
701 | 667 |
OBJ newFloat; |
668 |
double result; |
|
669 |
||
670 |
if (__isSmallInteger(aNumber)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
671 |
result = __floatVal(self) * (double)(__intVal(aNumber)); |
701 | 672 |
retResult: |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
673 |
__qMKFLOAT(newFloat, result); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
674 |
RETURN ( newFloat ); |
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
675 |
} |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
676 |
if (__isFloatLike(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
677 |
result = __floatVal(self) * __floatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
678 |
goto retResult; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
679 |
} |
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
680 |
if (__isShortFloat(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
681 |
result = __floatVal(self) * (double)(__shortFloatVal(aNumber)); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
682 |
goto retResult; |
701 | 683 |
} |
3530
a1af5dafc3ee
float op shortFloat added inline.
Claus Gittinger <cg@exept.de>
parents:
3472
diff
changeset
|
684 |
%}. |
701 | 685 |
^ aNumber productFromFloat:self |
686 |
! |
|
687 |
||
1 | 688 |
+ aNumber |
689 |
"return the sum of the receiver and the argument, aNumber" |
|
690 |
||
691 |
%{ /* NOCONTEXT */ |
|
13 | 692 |
|
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
693 |
/* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
694 |
* notice: |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
695 |
* the following inline code handles some common cases, |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
696 |
* and exists as an optimization, to speed up those cases. |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
697 |
* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
698 |
* Conceptionally, (and for most other argument types), |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
699 |
* mixed arithmetic is implemented by double dispatching |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
700 |
* (see the message send at the bottom) |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
701 |
*/ |
1 | 702 |
OBJ newFloat; |
703 |
double result; |
|
704 |
||
250 | 705 |
if (__isSmallInteger(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
706 |
result = __floatVal(self) + (double)(__intVal(aNumber)); |
1 | 707 |
retResult: |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
708 |
__qMKFLOAT(newFloat, result); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
709 |
RETURN ( newFloat ); |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
710 |
} |
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
711 |
if (__isFloatLike(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
712 |
result = __floatVal(self) + __floatVal(aNumber); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
713 |
goto retResult; |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
714 |
} |
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
715 |
if (__isShortFloat(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
716 |
result = __floatVal(self) + (double)(__shortFloatVal(aNumber)); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
717 |
goto retResult; |
1 | 718 |
} |
3530
a1af5dafc3ee
float op shortFloat added inline.
Claus Gittinger <cg@exept.de>
parents:
3472
diff
changeset
|
719 |
%}. |
1 | 720 |
^ aNumber sumFromFloat:self |
721 |
! |
|
722 |
||
723 |
- aNumber |
|
724 |
"return the difference of the receiver and the argument, aNumber" |
|
725 |
||
726 |
%{ /* NOCONTEXT */ |
|
13 | 727 |
|
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
728 |
/* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
729 |
* notice: |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
730 |
* the following inline code handles some common cases, |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
731 |
* and exists as an optimization, to speed up those cases. |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
732 |
* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
733 |
* Conceptionally, (and for most other argument types), |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
734 |
* mixed arithmetic is implemented by double dispatching |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
735 |
* (see the message send at the bottom) |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
736 |
*/ |
1 | 737 |
OBJ newFloat; |
738 |
double result; |
|
739 |
||
250 | 740 |
if (__isSmallInteger(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
741 |
result = __floatVal(self) - (double)(__intVal(aNumber)); |
1 | 742 |
retResult: |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
743 |
__qMKFLOAT(newFloat, result); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
744 |
RETURN ( newFloat ); |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
745 |
} |
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
746 |
if (__isFloatLike(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
747 |
result = __floatVal(self) - __floatVal(aNumber); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
748 |
goto retResult; |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
749 |
} |
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
750 |
if (__isShortFloat(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
751 |
result = __floatVal(self) - (double)(__shortFloatVal(aNumber)); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
752 |
goto retResult; |
1 | 753 |
} |
3530
a1af5dafc3ee
float op shortFloat added inline.
Claus Gittinger <cg@exept.de>
parents:
3472
diff
changeset
|
754 |
%}. |
1 | 755 |
^ aNumber differenceFromFloat:self |
756 |
! |
|
757 |
||
758 |
/ aNumber |
|
759 |
"return the quotient of the receiver and the argument, aNumber" |
|
760 |
||
761 |
%{ /* NOCONTEXT */ |
|
762 |
||
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
763 |
/* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
764 |
* notice: |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
765 |
* the following inline code handles some common cases, |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
766 |
* and exists as an optimization, to speed up those cases. |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
767 |
* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
768 |
* Conceptionally, (and for most other argument types), |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
769 |
* mixed arithmetic is implemented by double dispatching |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
770 |
* (see the message send at the bottom) |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
771 |
*/ |
1 | 772 |
OBJ newFloat; |
773 |
double result, val; |
|
774 |
||
250 | 775 |
if (__isSmallInteger(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
776 |
if (aNumber != __mkSmallInteger(0)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
777 |
result = __floatVal(self) / ( (double)__intVal(aNumber)) ; |
1 | 778 |
retResult: |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
779 |
__qMKFLOAT(newFloat, result); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
780 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
781 |
} |
3530
a1af5dafc3ee
float op shortFloat added inline.
Claus Gittinger <cg@exept.de>
parents:
3472
diff
changeset
|
782 |
} else if (__isFloatLike(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
783 |
val = __floatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
784 |
if (val != 0.0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
785 |
result = __floatVal(self) / val; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
786 |
goto retResult; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
787 |
} |
3530
a1af5dafc3ee
float op shortFloat added inline.
Claus Gittinger <cg@exept.de>
parents:
3472
diff
changeset
|
788 |
} else if (__isShortFloat(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
789 |
val = (double)(__shortFloatVal(aNumber)); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
790 |
if (val != 0.0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
791 |
result = __floatVal(self) / val; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
792 |
goto retResult; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
793 |
} |
1 | 794 |
} |
3530
a1af5dafc3ee
float op shortFloat added inline.
Claus Gittinger <cg@exept.de>
parents:
3472
diff
changeset
|
795 |
%}. |
1 | 796 |
((aNumber == 0) or:[aNumber = 0.0]) ifTrue:[ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
797 |
" |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
798 |
No, you shalt not divide by zero |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
799 |
" |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
800 |
^ ZeroDivide raiseRequestWith:thisContext. |
1 | 801 |
]. |
802 |
^ aNumber quotientFromFloat:self |
|
803 |
! |
|
804 |
||
5411 | 805 |
abs |
806 |
"return the absolute value of the receiver |
|
807 |
reimplemented here for speed" |
|
808 |
||
809 |
%{ /* NOCONTEXT */ |
|
810 |
||
811 |
OBJ newFloat; |
|
812 |
double val =__floatVal(self); |
|
813 |
||
814 |
if (val < 0.0) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
815 |
__qMKFLOAT(newFloat, -val); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
816 |
RETURN ( newFloat ); |
5411 | 817 |
} |
818 |
RETURN (self); |
|
819 |
%}. |
|
820 |
||
821 |
" |
|
822 |
3.0 abs |
|
823 |
-3.0 abs |
|
824 |
" |
|
825 |
! |
|
826 |
||
1 | 827 |
negated |
828 |
"return myself negated" |
|
829 |
||
830 |
%{ /* NOCONTEXT */ |
|
3 | 831 |
OBJ newFloat; |
1133 | 832 |
double rslt = - __floatVal(self); |
3 | 833 |
|
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
834 |
__qMKFLOAT(newFloat, rslt); |
3 | 835 |
RETURN ( newFloat ); |
5411 | 836 |
%}. |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
837 |
! |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
838 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
839 |
uncheckedDivide:aNumber |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
840 |
"return the quotient of the receiver and the argument, aNumber. |
7471 | 841 |
Do not check for divide by zero (return NaN or Infinity). |
7355 | 842 |
This operation is provided for emulators of other languages/semantics, |
843 |
where no exception is raised for these results (i.e. Java). |
|
844 |
Its only defined if the arguments type is the same as the receivers." |
|
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
845 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
846 |
%{ /* NOCONTEXT */ |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
847 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
848 |
OBJ newFloat; |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
849 |
double result, val; |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
850 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
851 |
if (__isSmallInteger(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
852 |
result = __floatVal(self) / ( (double)__intVal(aNumber)) ; |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
853 |
retResult: |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
854 |
__qMKFLOAT(newFloat, result); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
855 |
RETURN ( newFloat ); |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
856 |
} |
7355 | 857 |
if (__isFloatLike(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
858 |
val = __floatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
859 |
result = __floatVal(self) / val; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
860 |
goto retResult; |
7355 | 861 |
} |
862 |
if (__isShortFloat(aNumber)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
863 |
val = (double)(__shortFloatVal(aNumber)); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
864 |
result = __floatVal(self) / val; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
865 |
goto retResult; |
7355 | 866 |
} |
867 |
%}. |
|
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
868 |
^ aNumber quotientFromFloat:self |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
869 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
870 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
871 |
0.0 uncheckedDivide:0.0 |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
872 |
1.0 uncheckedDivide:0.0 |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
873 |
-1.0 uncheckedDivide:0.0 |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
874 |
" |
1 | 875 |
! ! |
876 |
||
701 | 877 |
|
5238 | 878 |
!Float methodsFor:'coercing & converting'! |
1 | 879 |
|
3014 | 880 |
asDouble |
7429 | 881 |
"ST80 compatibility: return a double with receivers value. |
882 |
our floats are the identical to ST80 doubles" |
|
3014 | 883 |
|
884 |
^ self |
|
885 |
! |
|
886 |
||
701 | 887 |
asFloat |
888 |
"return a float with same value - thats me" |
|
889 |
||
890 |
^ self |
|
891 |
! |
|
892 |
||
893 |
asInteger |
|
894 |
"return an integer with same value - might truncate" |
|
895 |
||
1 | 896 |
%{ /* NOCONTEXT */ |
1670 | 897 |
double dVal; |
13 | 898 |
|
1670 | 899 |
dVal = __floatVal(self); |
7420 | 900 |
#ifdef WIN32 |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
901 |
if (! isnan(dVal)) |
7420 | 902 |
#endif |
903 |
{ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
904 |
if ((dVal >= (double)_MIN_INT) && (dVal <= (double)_MAX_INT)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
905 |
RETURN ( __mkSmallInteger( (INT)dVal) ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
906 |
} |
701 | 907 |
} |
1198
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
908 |
%}. |
701 | 909 |
^ super asInteger |
910 |
||
911 |
"12345.0 asInteger" |
|
912 |
"1e15 asInteger" |
|
1 | 913 |
! |
914 |
||
5986 | 915 |
asLongFloat |
916 |
"return a longFloat with same value as receiver" |
|
917 |
||
7355 | 918 |
^ LongFloat fromFloat:self |
5986 | 919 |
|
920 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
921 |
123 asFloat asLongFloat |
5986 | 922 |
" |
923 |
||
924 |
"Created: / 7.9.2001 / 13:43:04 / cg" |
|
925 |
"Modified: / 7.9.2001 / 13:43:16 / cg" |
|
926 |
! |
|
927 |
||
1198
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
928 |
asShortFloat |
7355 | 929 |
"return a shortFloat with same value as receiver. |
930 |
CAVEAT: should raise an error if the receiver exceeds the float range." |
|
1198
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
931 |
|
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
932 |
%{ /* NOCONTEXT */ |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
933 |
|
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
934 |
OBJ dummy = @global(ShortFloat); |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
935 |
OBJ newFloat; |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
936 |
float fVal = (float)__floatVal(self); |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
937 |
|
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
938 |
__qMKSFLOAT(newFloat, fVal); |
1198
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
939 |
RETURN ( newFloat ); |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
940 |
%} |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
941 |
! |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
942 |
|
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
943 |
asTrueFraction |
7355 | 944 |
"Answer a fraction or integer that EXACTLY represents self, |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
945 |
a double precision IEEE floating point number. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
946 |
Floats are stored in the same form on all platforms. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
947 |
(Does not handle gradual underflow or NANs.) |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
948 |
By David N. Smith with significant performance |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
949 |
improvements by Luciano Esteban Notarfrancesco. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
950 |
(Version of 11April97)" |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
951 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
952 |
|shifty sign expPart exp fraction fractionPart result zeroBitsCount| |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
953 |
|
6344 | 954 |
self isFinite ifFalse:[ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
955 |
^ self asMetaNumber |
7441 | 956 |
"/ ^ self class |
957 |
"/ raise:#domainErrorSignal |
|
958 |
"/ receiver:self |
|
959 |
"/ selector:#asTrueFraction |
|
960 |
"/ arguments:#() |
|
961 |
"/ errorString:'Cannot represent non-finite float as a fraction'. |
|
6341 | 962 |
]. |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
963 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
964 |
"Extract the bits of an IEEE double float " |
6341 | 965 |
shifty := LargeInteger basicNew numberOfDigits:8. |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
966 |
UninterpretedBytes isBigEndian ifTrue:[ |
7355 | 967 |
"/ shifty := ((self longWordAt: 1) bitShift: 32) + (self longWordAt: 2). |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
968 |
1 to:8 do:[:i | shifty digitAt:(9-i) put:(self basicAt:i)]. |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
969 |
] ifFalse:[ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
970 |
1 to:8 do:[:i | shifty digitAt:i put:(self basicAt:i)]. |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
971 |
]. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
972 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
973 |
" Extract the sign and the biased exponent " |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
974 |
sign := (shifty bitShift: -63) = 0 ifTrue: [1] ifFalse: [-1]. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
975 |
expPart := (shifty bitShift: -52) bitAnd: 16r7FF. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
976 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
977 |
" Extract fractional part; answer 0 if this is a true 0.0 value " |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
978 |
fractionPart := shifty bitAnd: 16r000FFFFFFFFFFFFF. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
979 |
( expPart=0 and: [ fractionPart=0 ] ) ifTrue: [ ^ 0 ]. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
980 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
981 |
" Replace omitted leading 1 in fraction " |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
982 |
fraction := fractionPart bitOr: 16r0010000000000000. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
983 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
984 |
"Unbias exponent: 16r3FF is bias; 52 is fraction width" |
7480 | 985 |
exp := 16r3FF - expPart + 52. |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
986 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
987 |
" Form the result. When exp>52, the exponent is adjusted by |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
988 |
the number of trailing zero bits in the fraction to minimize |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
989 |
the (huge) time otherwise spent in #gcd:. " |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
990 |
exp negative ifTrue: [ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
991 |
result := sign * (fraction bitShift: exp negated) |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
992 |
] ifFalse:[ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
993 |
zeroBitsCount := fraction lowBit - 1. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
994 |
exp := exp - zeroBitsCount. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
995 |
exp <= 0 ifTrue: [ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
996 |
zeroBitsCount := zeroBitsCount + exp. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
997 |
"exp := 0." " Not needed; exp not refernced again " |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
998 |
result := sign * (fraction bitShift:zeroBitsCount negated) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
999 |
] ifFalse: [ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1000 |
result := Fraction |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1001 |
numerator: (sign * (fraction bitShift: zeroBitsCount negated)) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1002 |
denominator: (1 bitShift:exp) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1003 |
] |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
1004 |
]. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
1005 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
1006 |
"Low cost validation omitted after extensive testing" |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
1007 |
"(result asFloat = self) ifFalse: [self error: 'asTrueFraction validation failed']." |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
1008 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1009 |
^ result |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
1010 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
1011 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1012 |
0.3 asTrueFraction |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1013 |
1.25 asTrueFraction |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1014 |
0.25 asTrueFraction |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1015 |
-0.25 asTrueFraction |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1016 |
3e37 asTrueFraction |
6341 | 1017 |
Float NaN asTrueFraction |
6344 | 1018 |
Float infinity asTrueFraction |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
1019 |
" |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
1020 |
! |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
1021 |
|
701 | 1022 |
coerce:aNumber |
11721 | 1023 |
"convert the argument aNumber into an instance of the receivers class and return it." |
1 | 1024 |
|
701 | 1025 |
^ aNumber asFloat |
1026 |
! |
|
13 | 1027 |
|
701 | 1028 |
generality |
1029 |
"return the generality value - see ArithmeticValue>>retry:coercing:" |
|
1030 |
||
1031 |
^ 80 |
|
1 | 1032 |
! ! |
1033 |
||
1034 |
!Float methodsFor:'comparing'! |
|
1035 |
||
1036 |
< aNumber |
|
1037 |
"return true, if the argument is greater" |
|
1038 |
||
1039 |
%{ /* NOCONTEXT */ |
|
13 | 1040 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1041 |
/* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1042 |
* notice: |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1043 |
* the following inline code handles some common cases, |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1044 |
* and exists as an optimization, to speed up those cases. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1045 |
* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1046 |
* Conceptionally, (and for most other argument types), |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1047 |
* mixed arithmetic is implemented by double dispatching |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1048 |
* (see the message send at the bottom) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1049 |
*/ |
7355 | 1050 |
if (__isSmallInteger(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1051 |
RETURN ( (__floatVal(self) < (double)(__intVal(aNumber))) ? true : false ); |
7355 | 1052 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1053 |
if (aNumber != nil) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1054 |
if (__qIsFloatLike(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1055 |
RETURN ( (__floatVal(self) < __floatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1056 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1057 |
if (__qIsShortFloat(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1058 |
RETURN ( (__floatVal(self) < (double)(__shortFloatVal(aNumber))) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1059 |
} |
1 | 1060 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1061 |
%}. |
1 | 1062 |
^ aNumber lessFromFloat:self |
1063 |
! |
|
1064 |
||
1065 |
<= aNumber |
|
1066 |
"return true, if the argument is greater or equal" |
|
1067 |
||
1068 |
%{ /* NOCONTEXT */ |
|
13 | 1069 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1070 |
/* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1071 |
* notice: |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1072 |
* the following inline code handles some common cases, |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1073 |
* and exists as an optimization, to speed up those cases. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1074 |
* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1075 |
* Conceptionally, (and for most other argument types), |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1076 |
* mixed arithmetic is implemented by double dispatching |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1077 |
* (see the message send at the bottom) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1078 |
*/ |
7355 | 1079 |
if (__isSmallInteger(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1080 |
RETURN ( (__floatVal(self) <= (double)(__intVal(aNumber))) ? true : false ); |
7355 | 1081 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1082 |
if (aNumber != nil) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1083 |
if (__qIsFloatLike(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1084 |
RETURN ( (__floatVal(self) <= __floatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1085 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1086 |
if (__qIsShortFloat(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1087 |
RETURN ( (__floatVal(self) <= (double)(__shortFloatVal(aNumber))) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1088 |
} |
1 | 1089 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1090 |
%}. |
1 | 1091 |
^ self retry:#<= coercing:aNumber |
1092 |
! |
|
1093 |
||
1094 |
= aNumber |
|
7355 | 1095 |
"return true, if the argument represents the same numeric value |
1096 |
as the receiver, false otherwise" |
|
1 | 1097 |
|
1098 |
%{ /* NOCONTEXT */ |
|
13 | 1099 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1100 |
/* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1101 |
* notice: |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1102 |
* the following inline code handles some common cases, |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1103 |
* and exists as an optimization, to speed up those cases. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1104 |
* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1105 |
* Conceptionally, (and for most other argument types), |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1106 |
* mixed arithmetic is implemented by double dispatching |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1107 |
* (see the message send at the bottom) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1108 |
*/ |
7355 | 1109 |
if (__isSmallInteger(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1110 |
RETURN ( (__floatVal(self) == (double)(__intVal(aNumber))) ? true : false ); |
7355 | 1111 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1112 |
if (aNumber != nil) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1113 |
if (__qIsFloatLike(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1114 |
RETURN ( (__floatVal(self) == __floatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1115 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1116 |
if (__qIsShortFloat(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1117 |
RETURN ( (__floatVal(self) == (double)(__shortFloatVal(aNumber))) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1118 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1119 |
} else { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1120 |
RETURN (false); |
1 | 1121 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1122 |
%}. |
7355 | 1123 |
^ aNumber equalFromFloat:self |
1 | 1124 |
! |
1125 |
||
701 | 1126 |
> aNumber |
1127 |
"return true, if the argument is less" |
|
1 | 1128 |
|
1129 |
%{ /* NOCONTEXT */ |
|
13 | 1130 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1131 |
/* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1132 |
* notice: |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1133 |
* the following inline code handles some common cases, |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1134 |
* and exists as an optimization, to speed up those cases. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1135 |
* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1136 |
* Conceptionally, (and for most other argument types), |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1137 |
* mixed arithmetic is implemented by double dispatching |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1138 |
* (see the message send at the bottom) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1139 |
*/ |
7355 | 1140 |
if (__isSmallInteger(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1141 |
RETURN ( (__floatVal(self) > (double)(__intVal(aNumber))) ? true : false ); |
7355 | 1142 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1143 |
if (aNumber != nil) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1144 |
if (__qIsFloatLike(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1145 |
RETURN ( (__floatVal(self) > __floatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1146 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1147 |
if (__qIsShortFloat(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1148 |
RETURN ( (__floatVal(self) > (double)(__shortFloatVal(aNumber))) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1149 |
} |
1 | 1150 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1151 |
%}. |
701 | 1152 |
^ self retry:#> coercing:aNumber |
1153 |
! |
|
1154 |
||
1155 |
>= aNumber |
|
1156 |
"return true, if the argument is less or equal" |
|
1157 |
||
1158 |
%{ /* NOCONTEXT */ |
|
1159 |
||
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1160 |
/* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1161 |
* notice: |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1162 |
* the following inline code handles some common cases, |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1163 |
* and exists as an optimization, to speed up those cases. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1164 |
* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1165 |
* Conceptionally, (and for most other argument types), |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1166 |
* mixed arithmetic is implemented by double dispatching |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1167 |
* (see the message send at the bottom) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1168 |
*/ |
7355 | 1169 |
if (__isSmallInteger(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1170 |
RETURN ( (__floatVal(self) >= (double)(__intVal(aNumber))) ? true : false ); |
7355 | 1171 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1172 |
if (aNumber != nil) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1173 |
if (__qIsFloatLike(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1174 |
RETURN ( (__floatVal(self) >= __floatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1175 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1176 |
if (__qIsShortFloat(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1177 |
RETURN ( (__floatVal(self) >= (double)(__shortFloatVal(aNumber))) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1178 |
} |
701 | 1179 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1180 |
%}. |
701 | 1181 |
^ self retry:#>= coercing:aNumber |
92 | 1182 |
! |
1183 |
||
1184 |
hash |
|
1185 |
"return a number for hashing; redefined, since floats compare |
|
1186 |
by numeric value (i.e. 3.0 = 3), therefore 3.0 hash must be the same |
|
4594
eb09f567a3bc
float, shortFloat and fraction all hash alike
Claus Gittinger <cg@exept.de>
parents:
4593
diff
changeset
|
1187 |
as 3 hash." |
92 | 1188 |
|
305 | 1189 |
|i| |
92 | 1190 |
|
1191 |
(self >= SmallInteger minVal and:[self <= SmallInteger maxVal]) ifTrue:[ |
|
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1192 |
i := self asInteger. |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1193 |
self = i ifTrue:[ |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1194 |
^ i hash |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1195 |
]. |
92 | 1196 |
]. |
1197 |
||
1198 |
" |
|
305 | 1199 |
mhmh take some of my value-bits to hash on |
92 | 1200 |
" |
4590 | 1201 |
^ (((self basicAt:8) bitAnd:16r1F) bitShift:24) + |
305 | 1202 |
((self basicAt:7) bitShift:16) + |
1203 |
((self basicAt:6) bitShift:8) + |
|
4592 | 1204 |
(((self basicAt:5) + (self basicAt:1) + (self basicAt:2)) bitAnd:16rFF) |
92 | 1205 |
|
1206 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1207 |
3 hash |
92 | 1208 |
3.0 hash |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1209 |
3.1 hash |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1210 |
3.14159 hash |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1211 |
31.4159 hash |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1212 |
3.141591 hash |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1213 |
1.234567890123456 hash |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1214 |
1.234567890123457 hash |
92 | 1215 |
Set withAll:#(3 3.0 99 99.0 3.1415) |
1216 |
" |
|
1 | 1217 |
! |
1218 |
||
701 | 1219 |
~= aNumber |
1220 |
"return true, if the arguments value are not equal" |
|
1 | 1221 |
|
1222 |
%{ /* NOCONTEXT */ |
|
1223 |
||
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1224 |
/* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1225 |
* notice: |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1226 |
* the following inline code handles some common cases, |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1227 |
* and exists as an optimization, to speed up those cases. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1228 |
* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1229 |
* Conceptionally, (and for most other argument types), |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1230 |
* mixed arithmetic is implemented by double dispatching |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1231 |
* (see the message send at the bottom) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1232 |
*/ |
7355 | 1233 |
if (__isSmallInteger(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1234 |
RETURN ( (__floatVal(self) != (double)(__intVal(aNumber))) ? true : false ); |
7355 | 1235 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1236 |
if (aNumber != nil) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1237 |
if (__qIsFloatLike(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1238 |
RETURN ( (__floatVal(self) != __floatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1239 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1240 |
if (__qIsShortFloat(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1241 |
RETURN ( (__floatVal(self) != (double)(__shortFloatVal(aNumber))) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1242 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1243 |
} else { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1244 |
RETURN ( true ); |
1 | 1245 |
} |
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1246 |
%}. |
7355 | 1247 |
^ super ~= aNumber |
1 | 1248 |
! ! |
1249 |
||
1250 |
!Float methodsFor:'mathematical functions'! |
|
1251 |
||
701 | 1252 |
exp |
1253 |
"return e raised to the power of the receiver" |
|
1254 |
||
1255 |
%{ /* NOCONTEXT */ |
|
1256 |
||
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1257 |
double rslt; |
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1258 |
OBJ newFloat; |
701 | 1259 |
|
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1260 |
__threadErrno = 0; |
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1261 |
rslt = exp(__floatVal(self)); |
7393 | 1262 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
1263 |
{ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1264 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1265 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1266 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1267 |
} |
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1268 |
} |
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1269 |
%}. |
3395
02f47135d80f
pass messageSend as parameter to domainError exception
Claus Gittinger <cg@exept.de>
parents:
3279
diff
changeset
|
1270 |
^ self class |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1271 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1272 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1273 |
selector:#exp |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1274 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1275 |
errorString:'bad receiver in exp' |
6195 | 1276 |
|
1277 |
"Modified: / 16.11.2001 / 14:14:29 / cg" |
|
701 | 1278 |
! |
1279 |
||
1 | 1280 |
ln |
6193 | 1281 |
"return the natural logarithm of myself. |
1282 |
Raises an exception, if the receiver is less or equal to zero." |
|
1 | 1283 |
|
1284 |
%{ /* NOCONTEXT */ |
|
1285 |
||
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1286 |
double val, rslt; |
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1287 |
OBJ newFloat; |
1 | 1288 |
|
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1289 |
val = __floatVal(self); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1290 |
|
6193 | 1291 |
#ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1292 |
if (val > 0.0) |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1293 |
#endif |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1294 |
{ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1295 |
__threadErrno = 0; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1296 |
rslt = log(val); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1297 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1298 |
{ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1299 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1300 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1301 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1302 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1303 |
} |
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1304 |
} |
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1305 |
%}. |
142 | 1306 |
" |
1307 |
an invalid value for logarithm |
|
1308 |
" |
|
3395
02f47135d80f
pass messageSend as parameter to domainError exception
Claus Gittinger <cg@exept.de>
parents:
3279
diff
changeset
|
1309 |
^ self class |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1310 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1311 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1312 |
selector:#ln |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1313 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1314 |
errorString:'bad receiver in ln' |
6193 | 1315 |
|
6195 | 1316 |
"Modified: / 16.11.2001 / 14:14:33 / cg" |
1 | 1317 |
! |
1318 |
||
7373 | 1319 |
log10 |
17736 | 1320 |
"return the base-10 logarithm of myself. |
7373 | 1321 |
Raises an exception, if the receiver is less or equal to zero." |
1322 |
||
1323 |
%{ /* NOCONTEXT */ |
|
1324 |
||
1325 |
double val, rslt; |
|
1326 |
OBJ newFloat; |
|
1327 |
||
1328 |
val = __floatVal(self); |
|
1329 |
||
1330 |
#ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
|
1331 |
if (val > 0.0) |
|
1332 |
#endif |
|
1333 |
{ |
|
17736 | 1334 |
__threadErrno = 0; |
1335 |
rslt = log10(val); |
|
1336 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
|
1337 |
{ |
|
1338 |
if (__threadErrno == 0) { |
|
1339 |
__qMKFLOAT(newFloat, rslt); |
|
1340 |
RETURN ( newFloat ); |
|
1341 |
} |
|
1342 |
} |
|
7373 | 1343 |
} |
1344 |
%}. |
|
1345 |
" |
|
1346 |
an invalid value for logarithm |
|
1347 |
" |
|
1348 |
^ self class |
|
17736 | 1349 |
raise:#domainErrorSignal |
1350 |
receiver:self |
|
1351 |
selector:#log10 |
|
1352 |
arguments:#() |
|
1353 |
errorString:'bad receiver in log10' |
|
7373 | 1354 |
|
1355 |
"Modified: / 16.11.2001 / 14:14:33 / cg" |
|
1356 |
! |
|
1357 |
||
1 | 1358 |
raisedTo:aNumber |
1359 |
"return self raised to the power of aNumber" |
|
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1360 |
|
1 | 1361 |
|n| |
1362 |
||
1363 |
n := aNumber asFloat. |
|
1364 |
%{ |
|
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1365 |
double rslt; |
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1366 |
OBJ newFloat; |
1 | 1367 |
|
283 | 1368 |
if (__isFloatLike(n)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1369 |
__threadErrno = 0; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1370 |
rslt = pow(__floatVal(self), __floatVal(n)); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1371 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1372 |
{ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1373 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1374 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1375 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1376 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1377 |
} |
1 | 1378 |
} |
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1379 |
%}. |
142 | 1380 |
" |
1381 |
an invalid argument (not convertable to float ?) |
|
1382 |
" |
|
3395
02f47135d80f
pass messageSend as parameter to domainError exception
Claus Gittinger <cg@exept.de>
parents:
3279
diff
changeset
|
1383 |
^ self class |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1384 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1385 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1386 |
selector:#raisedTo: |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1387 |
arguments:(Array with:aNumber) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1388 |
errorString:'bad receiver/arg in raisedTo:' |
6195 | 1389 |
|
1390 |
"Modified: / 16.11.2001 / 14:16:51 / cg" |
|
1 | 1391 |
! |
1392 |
||
1393 |
sqrt |
|
6193 | 1394 |
"return the square root of myself. |
1395 |
Raises an exception, if the receiver is less than zero." |
|
1 | 1396 |
|
1397 |
%{ /* NOCONTEXT */ |
|
1398 |
||
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1399 |
double val, rslt; |
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1400 |
OBJ newFloat; |
1 | 1401 |
|
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1402 |
val = __floatVal(self); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1403 |
|
6193 | 1404 |
#ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1405 |
if (val >= 0.0) |
3889
3466554b639f
manually check receiver for beeing >= 0 under WINDOWS
Claus Gittinger <cg@exept.de>
parents:
3632
diff
changeset
|
1406 |
#endif |
3466554b639f
manually check receiver for beeing >= 0 under WINDOWS
Claus Gittinger <cg@exept.de>
parents:
3632
diff
changeset
|
1407 |
{ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1408 |
__threadErrno = 0; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1409 |
rslt = sqrt(val); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1410 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1411 |
{ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1412 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1413 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1414 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1415 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1416 |
} |
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1417 |
} |
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1418 |
%}. |
3395
02f47135d80f
pass messageSend as parameter to domainError exception
Claus Gittinger <cg@exept.de>
parents:
3279
diff
changeset
|
1419 |
^ self class |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1420 |
raise:#imaginaryResultSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1421 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1422 |
selector:#sqrt |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1423 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1424 |
errorString:'bad (negative) receiver in sqrt' |
3399
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1425 |
|
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1426 |
" |
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1427 |
10 sqrt |
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1428 |
-10 sqrt |
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1429 |
" |
6193 | 1430 |
|
6195 | 1431 |
"Modified: / 16.11.2001 / 14:14:43 / cg" |
13 | 1432 |
! ! |
1433 |
||
17751 | 1434 |
|
92 | 1435 |
!Float methodsFor:'printing & storing'! |
1 | 1436 |
|
1437 |
printString |
|
2358 | 1438 |
"return a printed representation of the receiver; |
1439 |
if not specified otherwise (by setting DefaultPrintFormat), |
|
3194
16073834a825
Add comment about #printOn: and #printString
Stefan Vogel <sv@exept.de>
parents:
3163
diff
changeset
|
1440 |
6 valid digits are printed. |
16073834a825
Add comment about #printOn: and #printString
Stefan Vogel <sv@exept.de>
parents:
3163
diff
changeset
|
1441 |
LimitedPrecisonReal and its subclasses use #printString instead of |
16073834a825
Add comment about #printOn: and #printString
Stefan Vogel <sv@exept.de>
parents:
3163
diff
changeset
|
1442 |
#printOn: as basic print mechanism." |
1 | 1443 |
|
1444 |
%{ /* NOCONTEXT */ |
|
1445 |
||
13 | 1446 |
char buffer[64]; |
1 | 1447 |
REGISTER char *cp; |
314 | 1448 |
OBJ s; |
2358 | 1449 |
char *fmt; |
1450 |
char fmtBuffer[20]; |
|
8417
dcba76518224
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
8302
diff
changeset
|
1451 |
int len; |
2358 | 1452 |
|
17735 | 1453 |
if (__isStringLike(@global(DefaultPrintFormat))) { |
1454 |
fmt = (char *) __stringVal(@global(DefaultPrintFormat)); |
|
2358 | 1455 |
} else { |
17735 | 1456 |
/* |
1457 |
* in case we get called before #initialize ... |
|
1458 |
*/ |
|
17765 | 1459 |
fmt = ".15"; |
2358 | 1460 |
} |
1461 |
||
1462 |
/* |
|
1463 |
* build a printf format string |
|
1464 |
*/ |
|
1465 |
fmtBuffer[0] = '%'; |
|
1466 |
strncpy(fmtBuffer+1, fmt, 10); |
|
1467 |
#ifdef SYSV |
|
1468 |
strcat(fmtBuffer, "lg"); |
|
1469 |
#else |
|
1470 |
strcat(fmtBuffer, "G"); |
|
1471 |
#endif |
|
314 | 1472 |
|
8417
dcba76518224
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
8302
diff
changeset
|
1473 |
__BEGIN_PROTECT_REGISTERS__ |
dcba76518224
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
8302
diff
changeset
|
1474 |
len = snprintf(buffer, sizeof(buffer), fmtBuffer, __floatVal(self)); |
dcba76518224
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
8302
diff
changeset
|
1475 |
__END_PROTECT_REGISTERS__ |
dcba76518224
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
8302
diff
changeset
|
1476 |
|
dcba76518224
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
8302
diff
changeset
|
1477 |
if (len >= 0 && len < sizeof(buffer)-3) { |
17735 | 1478 |
/* |
1479 |
* kludge to make integral float f prints as "f.0" (not as "f" as printf does) |
|
1480 |
* (i.e. look if string contains '.' or 'e' and append '.0' if not) |
|
1481 |
*/ |
|
1482 |
for (cp = buffer; *cp; cp++) { |
|
1483 |
if ((*cp == '.') || (*cp == 'E') || (*cp == 'e')) break; |
|
1484 |
} |
|
1485 |
if (!*cp && (cp[-1] >= '0') && (cp[-1] <= '9')) { |
|
1486 |
if (__isCharacter(@global(DecimalPointCharacterForPrinting))) { |
|
1487 |
*cp++ = __intVal(__characterVal(@global(DecimalPointCharacterForPrinting))); |
|
1488 |
} else { |
|
1489 |
*cp++ = '.'; |
|
1490 |
} |
|
1491 |
*cp++ = '0'; |
|
1492 |
*cp = '\0'; |
|
1493 |
} else { |
|
1494 |
if (cp && (*cp == '.')) { |
|
1495 |
if (__isCharacter(@global(DecimalPointCharacterForPrinting))) { |
|
1496 |
*cp = __intVal(__characterVal(@global(DecimalPointCharacterForPrinting))); |
|
1497 |
} |
|
1498 |
} |
|
1499 |
} |
|
1500 |
||
1501 |
s = __MKSTRING(buffer); |
|
1502 |
if (s != nil) { |
|
1503 |
RETURN (s); |
|
1504 |
} |
|
314 | 1505 |
} |
1506 |
%}. |
|
1507 |
" |
|
1508 |
memory allocation (for the new string) failed. |
|
1509 |
When we arrive here, there was no memory, even after a garbage collect. |
|
1510 |
This means, that the VM wanted to get some more memory from the |
|
1511 |
OS, which was not kind enough to give it. |
|
1512 |
Bad luck - you should increase the swap space on your machine. |
|
1513 |
" |
|
1514 |
^ ObjectMemory allocationFailureSignal raise. |
|
1515 |
||
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1516 |
" |
17735 | 1517 |
1.0 printString |
1518 |
1.234 printString |
|
1519 |
1e10 printString |
|
1520 |
1.2e3 printString |
|
1521 |
1.2e30 printString |
|
1522 |
(1.0 uncheckedDivide:0) printString |
|
1523 |
(0.0 uncheckedDivide:0) printString |
|
17765 | 1524 |
self pi printString. |
17735 | 1525 |
|
1526 |
DecimalPointCharacter := $,. |
|
1527 |
1.234 printString. |
|
1528 |
1.0 printString. |
|
1529 |
1e10 printString. |
|
1530 |
1.2e3 printString. |
|
1531 |
1.2e30 printString. |
|
1532 |
(1.0 uncheckedDivide:0) printString. |
|
1533 |
(0.0 uncheckedDivide:0) printString. |
|
1534 |
DecimalPointCharacter := $. |
|
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1535 |
" |
1 | 1536 |
! |
1537 |
||
1538 |
printfPrintString:formatString |
|
7746 | 1539 |
"non-standard: return a printed representation of the receiver |
1 | 1540 |
as specified by formatString, which is defined by printf. |
31 | 1541 |
If you use this, be aware, that specifying doubles differs on |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1542 |
systems; on SYSV machines you have to give something like %lf, |
13 | 1543 |
while on BSD systems the format string has to be %F. |
31 | 1544 |
Also, the resulting string may not be longer than 255 bytes - |
54 | 1545 |
since thats the (static) size of the buffer. |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1546 |
This method is NONSTANDARD and may be removed without notice. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1547 |
WARNNG: this goes directly to the C-printf function and may therefore me inherently unsafe. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1548 |
|
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1549 |
Please use the printf: method, which is safe as it is completely implemented in Smalltalk." |
1 | 1550 |
|
13 | 1551 |
%{ /* STACK: 400 */ |
1 | 1552 |
char buffer[256]; |
314 | 1553 |
OBJ s; |
8417
dcba76518224
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
8302
diff
changeset
|
1554 |
int len; |
1 | 1555 |
|
17735 | 1556 |
if (__isStringLike(formatString)) { |
1557 |
/* |
|
1558 |
* actually only needed on sparc: since thisContext is |
|
1559 |
* in a global register, which gets destroyed by printf, |
|
1560 |
* manually save it here - very stupid ... |
|
1561 |
*/ |
|
1562 |
__BEGIN_PROTECT_REGISTERS__ |
|
1563 |
||
1564 |
len = snprintf(buffer, sizeof(buffer), __stringVal(formatString), __floatVal(self)); |
|
1565 |
||
1566 |
__END_PROTECT_REGISTERS__ |
|
1567 |
||
1568 |
if (len < 0) goto fail; |
|
1569 |
||
1570 |
s = __MKSTRING_L(buffer, len); |
|
1571 |
if (s != nil) { |
|
1572 |
RETURN (s); |
|
1573 |
} |
|
1 | 1574 |
} |
8417
dcba76518224
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
8302
diff
changeset
|
1575 |
fail: ; |
314 | 1576 |
%}. |
1 | 1577 |
self primitiveFailed |
1578 |
||
7355 | 1579 |
" |
1580 |
Float pi printfPrintString:'%%lg -> %lg' |
|
1581 |
Float pi printfPrintString:'%%lf -> %lf' |
|
8417
dcba76518224
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
8302
diff
changeset
|
1582 |
Float pi printfPrintString:'%%7.15lg -> %7.15lg' |
7355 | 1583 |
Float pi printfPrintString:'%%7.5lf -> %7.5lf' |
1584 |
Float pi printfPrintString:'%%G -> %G' |
|
1585 |
Float pi printfPrintString:'%%F -> %F' |
|
1586 |
Float pi printfPrintString:'%%7.5G -> %7.5G' |
|
1587 |
Float pi printfPrintString:'%%7.5F -> %7.5F' |
|
1588 |
" |
|
8422
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1589 |
! |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1590 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1591 |
storeString |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1592 |
"return a printed representation of the receiver; |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1593 |
all valid digits are printed. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1594 |
LimitedPrecisonReal and its subclasses use #storeString instead of |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1595 |
#storeOn: as basic print mechanism." |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1596 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1597 |
%{ /* NOCONTEXT */ |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1598 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1599 |
char buffer[64]; |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1600 |
REGISTER char *cp; |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1601 |
OBJ s; |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1602 |
int len; |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1603 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1604 |
__BEGIN_PROTECT_REGISTERS__ |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1605 |
#ifdef SYSV |
17765 | 1606 |
len = snprintf(buffer, sizeof(buffer), "%.15lg", __floatVal(self)); |
8422
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1607 |
#else |
17765 | 1608 |
len = snprintf(buffer, sizeof(buffer), "%.15G", __floatVal(self)); |
8422
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1609 |
#endif |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1610 |
__END_PROTECT_REGISTERS__ |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1611 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1612 |
if (len >= 0 && len < sizeof(buffer)-3) { |
17765 | 1613 |
/* |
1614 |
* kludge to make integral float f prints as "f.0" (not as "f" as printf does) |
|
1615 |
* (i.e. look if string contains '.' or 'e' and append '.0' if not) |
|
1616 |
*/ |
|
1617 |
for (cp = buffer; *cp; cp++) { |
|
1618 |
if ((*cp == '.') || (*cp == 'E') || (*cp == 'e')) break; |
|
1619 |
} |
|
1620 |
if (!*cp && (cp[-1] >= '0') && (cp[-1] <= '9')) { |
|
1621 |
*cp++ = '.'; |
|
1622 |
*cp++ = '0'; |
|
1623 |
*cp = '\0'; |
|
1624 |
} |
|
1625 |
||
1626 |
s = __MKSTRING(buffer); |
|
1627 |
if (s != nil) { |
|
1628 |
RETURN (s); |
|
1629 |
} |
|
8422
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1630 |
} |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1631 |
%}. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1632 |
" |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1633 |
memory allocation (for the new string) failed. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1634 |
When we arrive here, there was no memory, even after a garbage collect. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1635 |
This means, that the VM wanted to get some more memory from the |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1636 |
OS, which was not kind enough to give it. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1637 |
Bad luck - you should increase the swap space on your machine. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1638 |
" |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1639 |
^ ObjectMemory allocationFailureSignal raise. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1640 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1641 |
" |
17765 | 1642 |
1.0 storeString |
1643 |
1.234 storeString |
|
1644 |
1e10 storeString |
|
1645 |
1.2e3 storeString |
|
1646 |
1.2e30 storeString |
|
1647 |
Float pi storeString |
|
1648 |
(1.0 uncheckedDivide:0) storeString |
|
1649 |
(0.0 uncheckedDivide:0) storeString |
|
8422
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1650 |
|
9124 | 1651 |
notice that the storeString is NOT affected by DecimalPointCharacterForPrinting: |
1652 |
||
17765 | 1653 |
DecimalPointCharacterForPrinting := $,. |
1654 |
1.234 storeString. |
|
1655 |
1.0 storeString. |
|
1656 |
1e10 storeString. |
|
1657 |
1.2e3 storeString. |
|
1658 |
1.2e30 storeString. |
|
1659 |
(1.0 uncheckedDivide:0) storeString. |
|
1660 |
(0.0 uncheckedDivide:0) storeString. |
|
1661 |
DecimalPointCharacterForPrinting := $. |
|
8422
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8417
diff
changeset
|
1662 |
" |
1 | 1663 |
! ! |
701 | 1664 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1665 |
|
7258 | 1666 |
!Float methodsFor:'private-accessing'! |
701 | 1667 |
|
1668 |
basicAt:index |
|
1669 |
"return an internal byte of the float. |
|
1670 |
The value returned here depends on byte order, float representation etc. |
|
1671 |
Therefore, this method should be used strictly private. |
|
1672 |
||
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1673 |
Notice: |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1674 |
the need to redefine this method here is due to the |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1675 |
inability of many machines to store floats in non-double aligned memory. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1676 |
Therefore, on some machines, the first 4 bytes of a float are left unused, |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1677 |
and the actual float is stored at index 5 .. 12. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1678 |
To hide this at one place, this method knows about that, and returns |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1679 |
values as if this filler wasnt present." |
701 | 1680 |
|
1681 |
%{ /* NOCONTEXT */ |
|
1682 |
||
1683 |
register int indx; |
|
1684 |
unsigned char *cp; |
|
1685 |
||
1686 |
/* |
|
1687 |
* notice the missing test for self being a nonNilObject - |
|
1688 |
* this can be done since basicAt: is defined both in UndefinedObject |
|
1689 |
* and SmallInteger |
|
1690 |
*/ |
|
1691 |
if (__isSmallInteger(index)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1692 |
indx = __intVal(index) - 1; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1693 |
if (((unsigned)(indx)) < sizeof(double)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1694 |
cp = (unsigned char *)(& (__FloatInstPtr(self)->f_floatvalue)); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1695 |
RETURN ( __mkSmallInteger(cp[indx] & 0xFF) ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1696 |
} |
701 | 1697 |
} |
1698 |
%}. |
|
7217 | 1699 |
^ self indexNotIntegerOrOutOfBounds:index |
701 | 1700 |
! |
1701 |
||
1702 |
basicAt:index put:value |
|
1703 |
"set an internal byte of the float. |
|
1704 |
The value to be stored here depends on byte order, float representation etc. |
|
1705 |
Therefore, this method should be used strictly private. |
|
1706 |
||
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1707 |
Notice: |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1708 |
the need to redefine this method here is due to the |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1709 |
inability of many machines to store floats in non-double aligned memory. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1710 |
Therefore, on some machines, the first 4 bytes of a float are left unused, |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1711 |
and the actual float is stored at index 5 .. 12. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1712 |
To hide this at one place, this method knows about that, and returns |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1713 |
values as if this filler wasnt present." |
701 | 1714 |
|
1715 |
%{ /* NOCONTEXT */ |
|
1716 |
register int indx, val; |
|
1717 |
unsigned char *cp; |
|
1718 |
||
1719 |
/* |
|
1720 |
* notice the missing test for self being a nonNilObject - |
|
1721 |
* this can be done since basicAt: is defined both in UndefinedObject |
|
1722 |
* and SmallInteger |
|
1723 |
*/ |
|
1724 |
if (__bothSmallInteger(index, value)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1725 |
val = __intVal(value); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1726 |
if ((val & ~0xFF) == 0 /* i.e. (val >= 0) && (val <= 255) */) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1727 |
indx = __intVal(index) - 1; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1728 |
if (((unsigned)(indx)) < sizeof(double)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1729 |
cp = (unsigned char *)(& (__FloatInstPtr(self)->f_floatvalue)); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1730 |
cp[indx] = val; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1731 |
RETURN ( value ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1732 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1733 |
} |
701 | 1734 |
} |
1735 |
%}. |
|
1736 |
value isInteger ifFalse:[ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1737 |
" |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1738 |
the object to store should be an integer number |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1739 |
" |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1740 |
^ self elementNotInteger |
701 | 1741 |
]. |
1742 |
(value between:0 and:255) ifFalse:[ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1743 |
" |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1744 |
the object to store must be a bytes value |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1745 |
" |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1746 |
^ self elementBoundsError:value |
701 | 1747 |
]. |
7217 | 1748 |
^ self indexNotIntegerOrOutOfBounds:index |
5557 | 1749 |
! ! |
1750 |
||
1751 |
!Float methodsFor:'queries'! |
|
4592 | 1752 |
|
1753 |
basicSize |
|
1754 |
"return the size in bytes of the float. |
|
1755 |
||
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1756 |
Notice: |
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1757 |
the need to redefine this method here is due to the |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1758 |
inability of many machines to store floats in non-double aligned memory. |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1759 |
Therefore, on some machines, the first 4 bytes of a float are left unused, |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1760 |
and the actual float is stored at index 5 .. 12. |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1761 |
To hide this at one place, this method knows about that, and returns |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1762 |
values as if this filler wasnt present." |
4592 | 1763 |
|
1764 |
%{ /* NOCONTEXT */ |
|
1765 |
||
8913 | 1766 |
RETURN (__mkSmallInteger(sizeof(double))); |
4592 | 1767 |
%}. |
701 | 1768 |
! ! |
1769 |
||
3896 | 1770 |
!Float methodsFor:'special access'! |
1771 |
||
1772 |
exponent |
|
1773 |
"extract a normalized floats exponent. |
|
1774 |
The returned value depends on the float-representation of |
|
1775 |
the underlying machine and is therefore highly unportable. |
|
1776 |
This is not for general use. |
|
1777 |
This assumes that the mantissa is normalized to |
|
17735 | 1778 |
0.5 .. 1.0 and the float's value is: mantissa * 2^exp" |
3896 | 1779 |
|
1780 |
%{ /* NOCONTEXT */ |
|
1781 |
||
1782 |
double frexp(); |
|
1783 |
double frac; |
|
8913 | 1784 |
int exp; |
3896 | 1785 |
|
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1786 |
__threadErrno = 0; |
3896 | 1787 |
frac = frexp(__floatVal(self), &exp); |
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1788 |
if (__threadErrno == 0) { |
17735 | 1789 |
RETURN (__mkSmallInteger(exp)); |
3896 | 1790 |
} |
1791 |
%}. |
|
1792 |
^ self primitiveFailed |
|
1793 |
||
1794 |
" |
|
17735 | 1795 |
1.0 exponent |
1796 |
2.0 exponent |
|
1797 |
3.0 exponent |
|
1798 |
4.0 exponent |
|
1799 |
0.5 exponent |
|
1800 |
0.4 exponent |
|
1801 |
0.25 exponent |
|
1802 |
0.2 exponent |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1803 |
0.00000011111 exponent |
3896 | 1804 |
" |
1805 |
! |
|
1806 |
||
1807 |
mantissa |
|
1808 |
"extract a normalized floats mantissa. |
|
1809 |
The returned value depends on the float-representation of |
|
1810 |
the underlying machine and is therefore highly unportable. |
|
1811 |
This is not for general use. |
|
1812 |
This assumes that the mantissa is normalized to |
|
1813 |
0.5 .. 1.0 and the floats value is mantissa * 2^exp" |
|
1814 |
||
1815 |
%{ /* NOCONTEXT */ |
|
1816 |
||
1817 |
double frexp(); |
|
1818 |
double frac; |
|
8913 | 1819 |
int exp; |
3896 | 1820 |
|
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1821 |
__threadErrno = 0; |
3896 | 1822 |
frac = frexp(__floatVal(self), &exp); |
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1823 |
if (__threadErrno == 0) { |
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
1824 |
RETURN (__MKFLOAT(frac)); |
3896 | 1825 |
} |
1826 |
%}. |
|
1827 |
^ self primitiveFailed |
|
1828 |
||
1829 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1830 |
1.0 exponent |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1831 |
1.0 mantissa |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1832 |
|
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1833 |
0.25 exponent |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1834 |
0.25 mantissa |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1835 |
|
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1836 |
0.00000011111 exponent |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1837 |
0.00000011111 mantissa |
3896 | 1838 |
" |
1839 |
! ! |
|
1840 |
||
701 | 1841 |
!Float methodsFor:'testing'! |
1842 |
||
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1843 |
isFinite |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1844 |
"return true, if the receiver is a finite float |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1845 |
i.e. not NaN and not infinite." |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1846 |
|
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1847 |
%{ /* NOCONTEXT */ |
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1848 |
|
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1849 |
double dV = __floatVal(self); |
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1850 |
|
3198
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1851 |
/* |
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1852 |
* notice: on machines which do not provide |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1853 |
* a finite() macro or function (WIN32), |
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
1854 |
* this may always ret true here ... |
3198
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1855 |
*/ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1856 |
if (isfinite(dV)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1857 |
RETURN (true); |
3198
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1858 |
} |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1859 |
%}. |
8980
abee9fcb0385
cleanup isfinite() and isnan() - usage (HPUX)
Stefan Vogel <sv@exept.de>
parents:
8913
diff
changeset
|
1860 |
^ false |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1861 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1862 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1863 |
1.0 isFinite |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1864 |
Float NaN isFinite |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1865 |
Float infinity isFinite |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1866 |
(0.0 uncheckedDivide: 0.0) isFinite |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1867 |
(1.0 uncheckedDivide: 0.0) isFinite |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1868 |
" |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1869 |
! |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1870 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1871 |
isInfinite |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1872 |
"return true, if the receiver is an infinite float (Inf). |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1873 |
These are not created by ST/X float operations (they raise an exception); |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1874 |
however, inline C-code could produce them ... |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1875 |
Redefined here for speed" |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1876 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1877 |
%{ /* NOCONTEXT */ |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1878 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1879 |
double dV = __floatVal(self); |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1880 |
|
3198
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1881 |
/* |
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1882 |
* notice: on machines which do not provide |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1883 |
* finite() & isnan() macros or functions (WIN32), |
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
1884 |
* this may always ret false here ... |
3198
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1885 |
*/ |
8980
abee9fcb0385
cleanup isfinite() and isnan() - usage (HPUX)
Stefan Vogel <sv@exept.de>
parents:
8913
diff
changeset
|
1886 |
#if defined(isinf) |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1887 |
if (isinf(dV)) { RETURN (true); } |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1888 |
#else |
8980
abee9fcb0385
cleanup isfinite() and isnan() - usage (HPUX)
Stefan Vogel <sv@exept.de>
parents:
8913
diff
changeset
|
1889 |
if (!isfinite(dV) && !isnan(dV)) { RETURN (true); } |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1890 |
#endif |
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1891 |
%}. |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1892 |
^ false |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1893 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1894 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1895 |
1.0 isInfinite |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1896 |
(0.0 uncheckedDivide: 0.0) isInfinite |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1897 |
(1.0 uncheckedDivide: 0.0) isInfinite |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1898 |
(-1.0 uncheckedDivide: 0.0) isInfinite |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1899 |
" |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1900 |
! |
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1901 |
|
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1902 |
isLiteral |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1903 |
"return true, if the receiver can be used as a literal constant in ST syntax |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1904 |
(i.e. can be used in constant arrays)" |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1905 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1906 |
^ true |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1907 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1908 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1909 |
! |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1910 |
|
2387 | 1911 |
isNaN |
1912 |
"return true, if the receiver is an invalid float (NaN - not a number). |
|
1913 |
These are not created by ST/X float operations (they raise an exception); |
|
1914 |
however, inline C-code could produce them ..." |
|
1915 |
||
1916 |
%{ /* NOCONTEXT */ |
|
1917 |
||
3139 | 1918 |
double dV = (__floatVal(self)); |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1919 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1920 |
if (isnan(dV)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1921 |
RETURN (true); |
7420 | 1922 |
} |
2392 | 1923 |
%}. |
1924 |
^ false |
|
3139 | 1925 |
|
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1926 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1927 |
1.0 isNaN |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1928 |
(0.0 uncheckedDivide: 0.0) isNaN |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1929 |
(1.0 uncheckedDivide: 0.0) isNaN |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1930 |
(-1.0 uncheckedDivide: 0.0) isNaN |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1931 |
" |
2387 | 1932 |
! |
1933 |
||
6890
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1934 |
isNegativeZero |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1935 |
"many systems have two float.Pnt zeros" |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1936 |
|
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1937 |
%{ |
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8635
diff
changeset
|
1938 |
#if defined(__i386__) && defined(LINUX) |
7441 | 1939 |
unsigned int biasedExponent; |
1940 |
||
1941 |
biasedExponent = ((short *)(__ByteArrayInstPtr(self)->ba_element))[3] & 0xFF70; |
|
1942 |
RETURN ((biasedExponent == 0x8000) ? true : false ); |
|
6890
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1943 |
#endif |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1944 |
%}. |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1945 |
^ super isNegativeZero |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1946 |
|
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1947 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1948 |
0.0 isNegativeZero |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1949 |
-0.0 isNegativeZero |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1950 |
-1.0 isNegativeZero |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1951 |
1.0 isNegativeZero |
6890
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1952 |
" |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1953 |
! |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1954 |
|
701 | 1955 |
negative |
1956 |
"return true if the receiver is less than zero" |
|
1957 |
||
1958 |
%{ /* NOCONTEXT */ |
|
1959 |
||
1133 | 1960 |
RETURN ( (__floatVal(self) < 0.0) ? true : false ); |
5411 | 1961 |
%}. |
701 | 1962 |
! |
1963 |
||
5357 | 1964 |
numberOfBits |
1965 |
"return the size (in bits) of the real; |
|
1966 |
typically, 64 is returned here, |
|
1967 |
but who knows ..." |
|
1968 |
||
1969 |
%{ /* NOCONTEXT */ |
|
1970 |
||
8913 | 1971 |
RETURN (__mkSmallInteger (sizeof(double) * 8)); |
5357 | 1972 |
%} |
1973 |
||
1974 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1975 |
1.2 numberOfBits |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1976 |
1.2 asShortFloat numberOfBits |
5357 | 1977 |
" |
1978 |
! |
|
1979 |
||
701 | 1980 |
positive |
1981 |
"return true if the receiver is greater or equal to zero" |
|
1982 |
||
1983 |
%{ /* NOCONTEXT */ |
|
1984 |
||
1133 | 1985 |
RETURN ( (__floatVal(self) >= 0.0) ? true : false ); |
701 | 1986 |
%} |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1987 |
! |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1988 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1989 |
strictlyPositive |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1990 |
"return true if the receiver is greater than zero" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1991 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1992 |
%{ /* NOCONTEXT */ |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1993 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1994 |
RETURN ( (__floatVal(self) > 0.0) ? true : false ); |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1995 |
%} |
701 | 1996 |
! ! |
1997 |
||
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1998 |
!Float methodsFor:'tracing'! |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1999 |
|
4682 | 2000 |
traceInto:aRequestor level:level from:referrer |
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
2001 |
"double dispatch into tracer, passing my type implicitely in the selector" |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
2002 |
|
4682 | 2003 |
^ aRequestor traceFloat:self level:level from:referrer |
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
2004 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
2005 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
2006 |
! ! |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
2007 |
|
7385 | 2008 |
!Float methodsFor:'trigonometric'! |
2009 |
||
2010 |
arcCos |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2011 |
"return the arccosine of the receiver (as radians). |
7385 | 2012 |
Raises an exception, if the receiver is not in -1..1" |
2013 |
||
2014 |
%{ /* NOCONTEXT */ |
|
2015 |
||
2016 |
double val, rslt; |
|
2017 |
OBJ newFloat; |
|
2018 |
||
2019 |
val = __floatVal(self); |
|
2020 |
||
2021 |
#ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
|
2022 |
if ((val >= -1.0) && (val <= 1.0)) |
|
2023 |
#endif |
|
2024 |
{ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2025 |
__threadErrno = 0; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2026 |
rslt = acos(val); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2027 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2028 |
{ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2029 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2030 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2031 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2032 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2033 |
} |
7385 | 2034 |
} |
2035 |
%}. |
|
2036 |
^ self class |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2037 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2038 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2039 |
selector:#arcCos |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2040 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2041 |
errorString:'bad receiver in arcCos' |
7385 | 2042 |
|
2043 |
" |
|
2044 |
-10 arcCos |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2045 |
1 arcCos |
7385 | 2046 |
" |
2047 |
||
2048 |
"Modified: / 16.11.2001 / 14:14:13 / cg" |
|
2049 |
! |
|
2050 |
||
2051 |
arcCosh |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2052 |
"return the hyperbolic arccosine of the receiver." |
7385 | 2053 |
|
7410 | 2054 |
|useFallBack| |
2055 |
||
2056 |
%{ |
|
2057 |
#ifdef NO_ACOSH |
|
2058 |
useFallBack = true; |
|
2059 |
#else |
|
7385 | 2060 |
double val, rslt; |
2061 |
OBJ newFloat; |
|
2062 |
||
2063 |
val = __floatVal(self); |
|
2064 |
||
7410 | 2065 |
# ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2066 |
if (val >= 1.0) |
7410 | 2067 |
# endif |
7385 | 2068 |
{ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2069 |
__threadErrno = 0; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2070 |
rslt = acosh(val); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2071 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2072 |
{ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2073 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2074 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2075 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2076 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2077 |
} |
7385 | 2078 |
} |
7410 | 2079 |
#endif |
7385 | 2080 |
%}. |
7410 | 2081 |
useFallBack notNil ifTrue:[ |
2082 |
^ super arcCosh |
|
2083 |
]. |
|
2084 |
||
7385 | 2085 |
^ self class |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2086 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2087 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2088 |
selector:#arcCosh |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2089 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2090 |
errorString:'bad receiver in arcCosh' |
7385 | 2091 |
|
2092 |
" |
|
2093 |
-10.0 arcCosh |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2094 |
1.0 arcCosh |
7385 | 2095 |
" |
2096 |
||
2097 |
"Modified: / 16.11.2001 / 14:14:13 / cg" |
|
2098 |
! |
|
2099 |
||
2100 |
arcSin |
|
2101 |
"return the arcsine of myself (I am interpreted as radians). |
|
2102 |
Raises an exception, if the receiver is not in -1..1" |
|
2103 |
||
2104 |
%{ /* NOCONTEXT */ |
|
2105 |
||
2106 |
double val, rslt; |
|
2107 |
OBJ newFloat; |
|
2108 |
||
2109 |
val = __floatVal(self); |
|
2110 |
||
2111 |
#ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
|
2112 |
if ((val >= -1.0) && (val <= 1.0)) |
|
2113 |
#endif |
|
2114 |
{ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2115 |
__threadErrno = 0; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2116 |
rslt = asin(val); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2117 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2118 |
{ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2119 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2120 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2121 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2122 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2123 |
} |
7385 | 2124 |
} |
2125 |
%}. |
|
2126 |
^ self class |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2127 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2128 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2129 |
selector:#arcSin |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2130 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2131 |
errorString:'bad receiver in arcSin' |
7385 | 2132 |
|
2133 |
" |
|
2134 |
-10 arcSin |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2135 |
1 arcSin |
7385 | 2136 |
" |
2137 |
||
2138 |
"Modified: / 16.11.2001 / 14:14:18 / cg" |
|
2139 |
! |
|
2140 |
||
2141 |
arcSinh |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2142 |
"return the hyperbolic arcsine of the receiver." |
7385 | 2143 |
|
7410 | 2144 |
|useFallBack| |
2145 |
%{ |
|
2146 |
#ifdef NO_ASINH |
|
2147 |
useFallBack = true; |
|
2148 |
#else |
|
7385 | 2149 |
double val, rslt; |
2150 |
OBJ newFloat; |
|
2151 |
||
2152 |
val = __floatVal(self); |
|
2153 |
||
7410 | 2154 |
# ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2155 |
if (val >= 1.0) |
7410 | 2156 |
# endif |
7385 | 2157 |
{ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2158 |
__threadErrno = 0; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2159 |
rslt = asinh(val); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2160 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2161 |
{ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2162 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2163 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2164 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2165 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2166 |
} |
7385 | 2167 |
} |
7410 | 2168 |
#endif |
7385 | 2169 |
%}. |
7410 | 2170 |
useFallBack notNil ifTrue:[ |
2171 |
^ super arcSinh |
|
2172 |
]. |
|
7385 | 2173 |
^ self class |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2174 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2175 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2176 |
selector:#arcSinh |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2177 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2178 |
errorString:'bad receiver in arcSinh' |
7385 | 2179 |
|
2180 |
" |
|
2181 |
-10.0 arcSinh |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2182 |
1.0 arcSinh |
7385 | 2183 |
" |
2184 |
! |
|
2185 |
||
2186 |
arcTan |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2187 |
"return the arctangent of the receiver (as radians)" |
7385 | 2188 |
|
2189 |
%{ /* NOCONTEXT */ |
|
2190 |
||
2191 |
double rslt; |
|
2192 |
OBJ newFloat; |
|
2193 |
||
2194 |
__threadErrno = 0; |
|
2195 |
rslt = atan(__floatVal(self)); |
|
7393 | 2196 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
2197 |
{ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2198 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2199 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2200 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2201 |
} |
7385 | 2202 |
} |
2203 |
%}. |
|
2204 |
^ self class |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2205 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2206 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2207 |
selector:#arcTan |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2208 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2209 |
errorString:'bad receiver in arcTan' |
7385 | 2210 |
|
2211 |
"Modified: / 16.11.2001 / 14:14:22 / cg" |
|
2212 |
! |
|
2213 |
||
11487 | 2214 |
arcTan2:x |
2215 |
"return the atan2(self,x)" |
|
2216 |
||
2217 |
%{ /* NOCONTEXT */ |
|
2218 |
||
2219 |
double rslt; |
|
2220 |
OBJ newFloat; |
|
2221 |
||
2222 |
if (__isFloat(x)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2223 |
__threadErrno = 0; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2224 |
rslt = atan2(__floatVal(self),__floatVal(x)); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2225 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2226 |
{ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2227 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2228 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2229 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2230 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2231 |
} |
11487 | 2232 |
} |
2233 |
%}. |
|
2234 |
x isFloat ifFalse:[ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2235 |
^ self arcTan2:(x asFloat). |
11487 | 2236 |
]. |
2237 |
||
2238 |
^ self class |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2239 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2240 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2241 |
selector:#arcTan2: |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2242 |
arguments:(Array with:x) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2243 |
errorString:'bad receiver in arcTan2:' |
11487 | 2244 |
! |
2245 |
||
10604 | 2246 |
arcTan: denominator |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2247 |
(self = 0.0) ifTrue: [ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2248 |
(denominator > 0.0) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2249 |
ifTrue: [ ^ 0 ] |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2250 |
ifFalse: [ ^ Pi ] |
10604 | 2251 |
]. |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2252 |
(denominator = 0.0) ifTrue: [ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2253 |
(self > 0.0) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2254 |
ifTrue: [ ^ Halfpi ] |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2255 |
ifFalse: [ ^ HalfpiNegative ] |
10604 | 2256 |
]. |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2257 |
(denominator > 0) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2258 |
ifTrue: [ ^ (self / denominator) arcTan ] |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2259 |
ifFalse: [ ^ ((self / denominator) arcTan) + Pi ] |
10604 | 2260 |
|
2261 |
"Created: / 07-06-2007 / 21:10:32 / cg" |
|
2262 |
"Modified: / 11-06-2007 / 12:58:34 / cg" |
|
2263 |
! |
|
2264 |
||
7385 | 2265 |
arcTanh |
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2266 |
"return the hyperbolic arctangent of the receiver." |
7385 | 2267 |
|
7410 | 2268 |
|useFallBack| |
2269 |
%{ |
|
2270 |
#ifdef NO_ATANH |
|
2271 |
useFallBack = true; |
|
2272 |
#else |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2273 |
double val, rslt; |
7385 | 2274 |
OBJ newFloat; |
2275 |
||
2276 |
__threadErrno = 0; |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2277 |
val = __floatVal(self); |
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2278 |
# ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2279 |
if ((val >= -1.0) && (val <= 1.0)) |
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2280 |
# endif |
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2281 |
{ |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2282 |
rslt = atanh(__floatVal(self)); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2283 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2284 |
{ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2285 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2286 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2287 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2288 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2289 |
} |
7385 | 2290 |
} |
7410 | 2291 |
#endif |
7385 | 2292 |
%}. |
7410 | 2293 |
useFallBack notNil ifTrue:[ |
2294 |
^ super arcTanh |
|
2295 |
]. |
|
7385 | 2296 |
^ self class |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2297 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2298 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2299 |
selector:#arcTanh |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2300 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2301 |
errorString:'bad receiver in arcTanh' |
7385 | 2302 |
! |
2303 |
||
2304 |
cos |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2305 |
"return the cosine of the receiver (interpreted as radians)" |
7385 | 2306 |
|
2307 |
%{ /* NOCONTEXT */ |
|
2308 |
||
2309 |
double rslt; |
|
2310 |
OBJ newFloat; |
|
2311 |
||
2312 |
__threadErrno = 0; |
|
2313 |
rslt = cos(__floatVal(self)); |
|
7393 | 2314 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
2315 |
{ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2316 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2317 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2318 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2319 |
} |
7385 | 2320 |
} |
2321 |
%}. |
|
2322 |
^ self class |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2323 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2324 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2325 |
selector:#cos |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2326 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2327 |
errorString:'bad receiver in cos' |
7385 | 2328 |
|
2329 |
"Modified: / 16.11.2001 / 14:14:26 / cg" |
|
2330 |
! |
|
2331 |
||
2332 |
cosh |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2333 |
"return the hyperbolic cosine of the receiver" |
7385 | 2334 |
|
2335 |
%{ /* NOCONTEXT */ |
|
2336 |
||
2337 |
double rslt; |
|
2338 |
OBJ newFloat; |
|
2339 |
||
2340 |
__threadErrno = 0; |
|
2341 |
rslt = cosh(__floatVal(self)); |
|
7393 | 2342 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
2343 |
{ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2344 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2345 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2346 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2347 |
} |
7385 | 2348 |
} |
2349 |
%}. |
|
2350 |
^ self class |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2351 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2352 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2353 |
selector:#cosh |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2354 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2355 |
errorString:'bad receiver in cosh' |
7385 | 2356 |
! |
2357 |
||
2358 |
sin |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2359 |
"return the sine of the receiver (interpreted as radians)" |
7385 | 2360 |
|
2361 |
%{ /* NOCONTEXT */ |
|
2362 |
||
2363 |
double rslt; |
|
2364 |
OBJ newFloat; |
|
2365 |
||
2366 |
__threadErrno = 0; |
|
2367 |
rslt = sin(__floatVal(self)); |
|
7393 | 2368 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
2369 |
{ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2370 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2371 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2372 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2373 |
} |
7385 | 2374 |
} |
2375 |
%}. |
|
2376 |
^ self class |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2377 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2378 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2379 |
selector:#sin |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2380 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2381 |
errorString:'bad receiver in sin' |
7385 | 2382 |
|
2383 |
"Modified: / 16.11.2001 / 14:14:37 / cg" |
|
2384 |
! |
|
2385 |
||
2386 |
sinh |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2387 |
"return the hyperbolic sine of the receiver" |
7385 | 2388 |
|
2389 |
%{ /* NOCONTEXT */ |
|
2390 |
||
2391 |
double rslt; |
|
2392 |
OBJ newFloat; |
|
2393 |
||
2394 |
__threadErrno = 0; |
|
2395 |
rslt = sinh(__floatVal(self)); |
|
7393 | 2396 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
2397 |
{ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2398 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2399 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2400 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2401 |
} |
7385 | 2402 |
} |
2403 |
%}. |
|
2404 |
^ self class |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2405 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2406 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2407 |
selector:#sinh |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2408 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2409 |
errorString:'bad receiver in sinh' |
7385 | 2410 |
! |
2411 |
||
2412 |
tan |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2413 |
"return the tangens of the receiver (interpreted as radians)" |
7385 | 2414 |
|
2415 |
%{ /* NOCONTEXT */ |
|
2416 |
||
2417 |
double rslt; |
|
2418 |
OBJ newFloat; |
|
2419 |
||
2420 |
__threadErrno = 0; |
|
2421 |
rslt = tan(__floatVal(self)); |
|
7393 | 2422 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
2423 |
{ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2424 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2425 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2426 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2427 |
} |
7385 | 2428 |
} |
2429 |
%}. |
|
2430 |
^ self class |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2431 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2432 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2433 |
selector:#tan |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2434 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2435 |
errorString:'bad receiver in tan' |
7385 | 2436 |
|
2437 |
"Modified: / 16.11.2001 / 14:14:49 / cg" |
|
2438 |
! |
|
2439 |
||
2440 |
tanh |
|
7391
55ca5a24162a
added more math functions (hyperbolic)
Claus Gittinger <cg@exept.de>
parents:
7385
diff
changeset
|
2441 |
"return the hyperbolic tangens of the receiver" |
7385 | 2442 |
|
2443 |
%{ /* NOCONTEXT */ |
|
2444 |
||
2445 |
double rslt; |
|
2446 |
OBJ newFloat; |
|
2447 |
||
2448 |
__threadErrno = 0; |
|
2449 |
rslt = tanh(__floatVal(self)); |
|
7393 | 2450 |
if (! isnan(rslt)) /* Currently all our systems support isnan() */ |
2451 |
{ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2452 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2453 |
__qMKFLOAT(newFloat, rslt); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2454 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2455 |
} |
7385 | 2456 |
} |
2457 |
%}. |
|
2458 |
^ self class |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2459 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2460 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2461 |
selector:#tanh |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2462 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2463 |
errorString:'bad receiver in tanh' |
7385 | 2464 |
! ! |
2465 |
||
5552 | 2466 |
!Float methodsFor:'truncation & rounding'! |
701 | 2467 |
|
2468 |
ceiling |
|
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2469 |
"return the smallest integer which is greater or equal to the receiver." |
701 | 2470 |
|
2471 |
|val| |
|
2472 |
||
2473 |
%{ |
|
2474 |
double dVal; |
|
2475 |
||
7355 | 2476 |
dVal = ceil(__floatVal(self)); |
701 | 2477 |
/* |
2478 |
* ST-80 (and X3J20) returns integer. |
|
2479 |
*/ |
|
2480 |
if ((dVal >= (double)_MIN_INT) && (dVal <= (double)_MAX_INT)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2481 |
RETURN ( __mkSmallInteger( (INT) dVal ) ); |
701 | 2482 |
} |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2483 |
__qMKFLOAT(val, dVal); |
701 | 2484 |
%}. |
2485 |
^ val asInteger |
|
2486 |
! |
|
2487 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2488 |
ceilingAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2489 |
"return the smallest integer-valued float greater or equal to the receiver. |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2490 |
This is much like #ceiling, but avoids a (possibly expensive) conversion |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2491 |
of the result to an integer. |
7355 | 2492 |
It may be useful, if the result is to be further used in another float-operation." |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2493 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2494 |
%{ /* NOCONTEXT */ |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2495 |
double dVal; |
7355 | 2496 |
OBJ v; |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2497 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2498 |
dVal = ceil(__floatVal(self)); |
7355 | 2499 |
__qMKFLOAT(v, dVal); |
2500 |
RETURN (v); |
|
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2501 |
%} |
7355 | 2502 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2503 |
0.5 ceilingAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2504 |
-0.5 ceilingAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2505 |
-1.5 ceilingAsFloat |
7355 | 2506 |
" |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2507 |
! |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2508 |
|
701 | 2509 |
floor |
2510 |
"return the integer nearest the receiver towards negative infinity." |
|
2511 |
||
2512 |
|val| |
|
2513 |
||
2514 |
%{ |
|
2515 |
double dVal; |
|
2516 |
||
7355 | 2517 |
dVal = floor(__floatVal(self)); |
701 | 2518 |
/* |
2519 |
* ST-80 (and X3J20) returns integer. |
|
2520 |
*/ |
|
2521 |
if ((dVal >= (double)_MIN_INT) && (dVal <= (double)_MAX_INT)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2522 |
RETURN ( __mkSmallInteger( (INT) dVal ) ); |
701 | 2523 |
} |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2524 |
__qMKFLOAT(val, dVal); |
701 | 2525 |
%}. |
2526 |
^ val asInteger |
|
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2527 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2528 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2529 |
0.5 floor |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2530 |
0.5 floorAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2531 |
-0.5 floor |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2532 |
-0.5 floorAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2533 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2534 |
! |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2535 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2536 |
floorAsFloat |
7355 | 2537 |
"return the integer nearest the receiver towards negative infinity as a float. |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2538 |
This is much like #floor, but avoids a (possibly expensive) conversion |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2539 |
of the result to an integer. |
7355 | 2540 |
It may be useful, if the result is to be further used in another float-operation." |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2541 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2542 |
%{ /* NOCONTEXT */ |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2543 |
double dVal; |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2544 |
OBJ v; |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2545 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2546 |
dVal = floor(__floatVal(self)); |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2547 |
__qMKFLOAT(v, dVal); |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2548 |
RETURN (v); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2549 |
%} |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2550 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2551 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2552 |
0.5 floor |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2553 |
0.5 floorAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2554 |
-0.5 floor |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2555 |
-0.5 floorAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2556 |
" |
701 | 2557 |
! |
2558 |
||
3896 | 2559 |
fractionPart |
2560 |
"extract the after-decimal fraction part. |
|
7355 | 2561 |
such that (self truncated + self fractionPart) = self" |
3896 | 2562 |
|
2563 |
%{ /* NOCONTEXT */ |
|
2564 |
||
2565 |
double modf(); |
|
2566 |
double frac, trunc; |
|
2567 |
||
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
2568 |
__threadErrno = 0; |
3896 | 2569 |
frac = modf(__floatVal(self), &trunc); |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2570 |
if (! isnan(frac)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2571 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2572 |
RETURN (__MKFLOAT(frac)); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2573 |
} |
3896 | 2574 |
} |
2575 |
%}. |
|
7403 | 2576 |
^ self class |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2577 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2578 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2579 |
selector:#fractionPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2580 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2581 |
errorString:'bad receiver in fractionPart' |
3896 | 2582 |
|
2583 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2584 |
1.6 fractionPart + 1.6 truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2585 |
-1.6 fractionPart + -1.6 truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2586 |
|
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2587 |
1.0 fractionPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2588 |
2.0 fractionPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2589 |
3.0 fractionPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2590 |
4.0 fractionPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2591 |
0.5 fractionPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2592 |
0.25 fractionPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2593 |
3.14159 fractionPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2594 |
12345673.14159 fractionPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2595 |
123456731231231231.14159 fractionPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2596 |
|
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2597 |
3.14159 fractionPart + 3.14159 truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2598 |
|
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2599 |
12345673.14159 fractionPart + 12345673.14159 truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2600 |
|
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2601 |
123456731231231231.14159 fractionPart + 123456731231231231.14159 truncated |
3896 | 2602 |
" |
2603 |
! |
|
2604 |
||
701 | 2605 |
rounded |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2606 |
"return the receiver rounded to the nearest integer" |
701 | 2607 |
|
2608 |
|val| |
|
2609 |
||
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2610 |
%{ |
701 | 2611 |
double dVal; |
2612 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2613 |
dVal = __floatVal(self); |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2614 |
if (dVal < 0.0) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2615 |
dVal = ceil(dVal - 0.5); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2616 |
} else { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2617 |
dVal = floor(dVal + 0.5); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2618 |
} |
701 | 2619 |
/* |
2620 |
* ST-80 (and X3J20) returns integer. |
|
2621 |
*/ |
|
2622 |
if ((dVal >= (double)_MIN_INT) && (dVal <= (double)_MAX_INT)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2623 |
RETURN ( __mkSmallInteger( (INT) dVal ) ); |
701 | 2624 |
} |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2625 |
__qMKFLOAT(val, dVal); |
701 | 2626 |
%}. |
7355 | 2627 |
^ val asInteger |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2628 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2629 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2630 |
0.4 rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2631 |
0.5 rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2632 |
0.6 rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2633 |
-0.4 rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2634 |
-0.5 rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2635 |
-0.6 rounded |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2636 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2637 |
! |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2638 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2639 |
roundedAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2640 |
"return the receiver rounded to the nearest integer as a float. |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2641 |
This is much like #rounded, but avoids a (possibly expensive) conversion |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2642 |
of the result to an integer. |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2643 |
It may be useful, if the result is to be further used in another |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2644 |
float-operation." |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2645 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2646 |
|val| |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2647 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2648 |
%{ /* NOCONTEXT */ |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2649 |
double dVal; |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2650 |
OBJ v; |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2651 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2652 |
dVal = __floatVal(self); |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2653 |
if (dVal < 0.0) { |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2654 |
dVal = ceil(dVal - 0.5); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2655 |
} else { |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2656 |
dVal = floor(dVal + 0.5); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2657 |
} |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2658 |
__qMKFLOAT(v, dVal); |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2659 |
RETURN (v); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2660 |
%} |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2661 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2662 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2663 |
0.5 rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2664 |
-0.5 rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2665 |
0.5 roundedAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2666 |
-0.5 roundedAsFloat |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2667 |
" |
701 | 2668 |
! |
2669 |
||
2670 |
truncated |
|
2671 |
"return the receiver truncated towards zero as an integer" |
|
2672 |
||
2673 |
|val| |
|
2674 |
||
2675 |
%{ |
|
2676 |
double dVal; |
|
2677 |
||
1133 | 2678 |
dVal = __floatVal(self); |
701 | 2679 |
if (dVal < 0.0) { |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2680 |
dVal = ceil(dVal); |
701 | 2681 |
} else { |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2682 |
dVal = floor(dVal); |
701 | 2683 |
} |
2684 |
||
2685 |
/* |
|
2686 |
* ST-80 (and X3J20) returns integer. |
|
2687 |
*/ |
|
2688 |
if ((dVal >= (double)_MIN_INT) && (dVal <= (double)_MAX_INT)) { |
|
8913 | 2689 |
RETURN ( __mkSmallInteger( (INT) dVal ) ); |
701 | 2690 |
} |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2691 |
__qMKFLOAT(val, dVal); |
701 | 2692 |
%}. |
2693 |
^ val asInteger |
|
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2694 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2695 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2696 |
0.5 truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2697 |
-0.5 truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2698 |
0.5 truncatedAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2699 |
-0.5 truncatedAsFloat |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2700 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2701 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2702 |
! |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2703 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2704 |
truncatedAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2705 |
"return the receiver truncated towards zero as a float. |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2706 |
This is much like #truncated, but avoids a (possibly expensive) conversion |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2707 |
of the result to an integer. |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2708 |
It may be useful, if the result is to be further used in another |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2709 |
float-operation." |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2710 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2711 |
%{ /* NOCONTEXT */ |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2712 |
double dVal; |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2713 |
OBJ v; |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2714 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2715 |
dVal = __floatVal(self); |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2716 |
if (dVal < 0.0) { |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2717 |
dVal = ceil(dVal); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2718 |
} else { |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2719 |
dVal = floor(dVal); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2720 |
} |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2721 |
__qMKFLOAT(v, dVal); |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2722 |
RETURN (v); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2723 |
%} |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2724 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2725 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2726 |
0.5 truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2727 |
-0.5 truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2728 |
0.5 truncatedAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
2729 |
-0.5 truncatedAsFloat |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2730 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2731 |
|
701 | 2732 |
! ! |
2733 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2734 |
!Float class methodsFor:'documentation'! |
701 | 2735 |
|
2736 |
version |
|
17814 | 2737 |
^ '$Id: Float.st 10602 2010-12-20 07:13:27Z vranyj1 $' |
17735 | 2738 |
! |
2739 |
||
2740 |
version_CVS |
|
17814 | 2741 |
^ 'Header: /cvs/stx/stx/libbasic/Float.st,v 1.176 2010/11/23 13:35:52 cg Exp ' |
17761
b0e5971141bc
Added Lookup and BuiltinLookup classes
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17751
diff
changeset
|
2742 |
! |
b0e5971141bc
Added Lookup and BuiltinLookup classes
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17751
diff
changeset
|
2743 |
|
b0e5971141bc
Added Lookup and BuiltinLookup classes
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17751
diff
changeset
|
2744 |
version_SVN |
17814 | 2745 |
^ '$Id: Float.st 10602 2010-12-20 07:13:27Z vranyj1 $' |
701 | 2746 |
! ! |
6890
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
2747 |
|
2387 | 2748 |
Float initialize! |
17765 | 2749 |
|
17767 | 2750 |
|
17772
6e0b3c06c364
Method reverted to r10532
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17767
diff
changeset
|
2751 |
|
17780 | 2752 |
|
17807 | 2753 |
|
17814 | 2754 |