author | Claus Gittinger <cg@exept.de> |
Tue, 17 Jun 2003 11:12:22 +0200 | |
changeset 7385 | 852e84340d2b |
parent 7381 | 083208951b37 |
child 7391 | 55ca5a24162a |
permissions | -rw-r--r-- |
1 | 1 |
" |
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COPYRIGHT (c) 1988 by Claus Gittinger |
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All Rights Reserved |
1 | 4 |
|
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This software is furnished under a license and may be used |
|
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only in accordance with the terms of that license and with the |
|
7 |
inclusion of the above copyright notice. This software may not |
|
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be provided or otherwise made available to, or used by, any |
|
9 |
other person. No title to or ownership of the software is |
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10 |
hereby transferred. |
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" |
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||
5411 | 13 |
"{ 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' |
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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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24 |
#include <errno.h> |
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||
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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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#include <math.h> |
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701 | 33 |
/* |
34 |
* on some systems errno is a macro ... check for it here |
|
35 |
*/ |
|
36 |
#ifndef errno |
|
37 |
extern errno; |
|
38 |
#endif |
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39 |
||
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#if defined (_AIX) |
41 |
# include <float.h> |
|
42 |
#endif |
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4825 | 43 |
|
2395 | 44 |
#if defined(IRIX) |
45 |
# include <nan.h> |
|
46 |
#endif |
|
4825 | 47 |
|
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#if defined(LINUX) |
4825 | 49 |
# ifndef NAN |
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50 |
# include <bits/nan.h> |
4825 | 51 |
# endif |
2396 | 52 |
#endif |
4825 | 53 |
|
2399 | 54 |
#if defined(solaris) || defined(sunos) |
2398 | 55 |
# include <nan.h> |
56 |
#endif |
|
2394 | 57 |
|
3129 | 58 |
/* |
59 |
* sigh - some systems define that stuff; others dont. |
|
60 |
* (AIX even declares them as macros, so an external decl |
|
61 |
* will not work below ... |
|
62 |
*/ |
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#if !defined(_AIX) && !defined(NEXT3) |
3129 | 64 |
|
65 |
# ifdef acos |
|
66 |
double acos(); |
|
67 |
# endif |
|
68 |
# ifdef asin |
|
69 |
double asin(); |
|
70 |
# endif |
|
71 |
# ifndef atan |
|
72 |
double atan(); |
|
73 |
# endif |
|
74 |
# ifndef cos |
|
75 |
double cos(); |
|
76 |
# endif |
|
77 |
# ifndef sin |
|
78 |
double sin(); |
|
79 |
# endif |
|
80 |
# ifndef pow |
|
81 |
double pow(); |
|
82 |
# endif |
|
83 |
# ifndef log |
|
84 |
double log(); |
|
85 |
# endif |
|
86 |
# ifndef exp |
|
87 |
double exp(); |
|
88 |
# endif |
|
89 |
# ifndef sqrt |
|
90 |
double sqrt(); |
|
91 |
# endif |
|
92 |
# ifndef tan |
|
93 |
double tan(); |
|
94 |
# endif |
|
95 |
||
96 |
#endif /* not AIX */ |
|
97 |
||
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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 finite |
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# define finite(x) 1 |
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# endif |
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# ifndef isnan |
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# define isnan(x) 0 |
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# endif |
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#endif |
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#ifdef realIX |
112 |
/* |
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* no finite(x) |
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114 |
*/ |
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# ifndef finite |
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# define finite(x) 1 |
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# endif |
118 |
#endif |
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||
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#ifndef NEXT3 |
121 |
# ifndef ceil |
|
122 |
double ceil(); |
|
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double floor(); |
|
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# endif |
|
125 |
#endif |
|
126 |
||
701 | 127 |
%} |
128 |
! ! |
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129 |
||
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!Float class methodsFor:'documentation'! |
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|
88 | 132 |
copyright |
133 |
" |
|
134 |
COPYRIGHT (c) 1988 by Claus Gittinger |
|
175 | 135 |
All Rights Reserved |
88 | 136 |
|
137 |
This software is furnished under a license and may be used |
|
138 |
only in accordance with the terms of that license and with the |
|
139 |
inclusion of the above copyright notice. This software may not |
|
140 |
be provided or otherwise made available to, or used by, any |
|
141 |
other person. No title to or ownership of the software is |
|
142 |
hereby transferred. |
|
143 |
" |
|
144 |
! |
|
145 |
||
68 | 146 |
documentation |
147 |
" |
|
7380 | 148 |
ShortFloats represent rational numbers with limited precision. |
149 |
They use the C-compilers 'double' format, which is usually the 8byte IEE double float format. |
|
150 |
||
151 |
Floats give you 64 bit floats. |
|
152 |
In contrast to ShortFloats and LongFloats. |
|
153 |
||
154 |
WARNING: |
|
155 |
The layout of Float instances is known by the runtime system and the compiler; |
|
156 |
you may not add instance variables here. |
|
157 |
Also, subclassing is complicated by the fact, that the VM creates floats/shortFloats, |
|
158 |
and does some float-checks by an identity compare with the Float-class. |
|
159 |
(i.e. your subclasses instances may not be recognized as float-like objects, |
|
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thus mixed mode arithmetic will always coerce them, effectively slowing things down). |
|
1 | 161 |
|
68 | 162 |
Notice, that Floats are defined as Byte-array to prevent the garbage collector |
163 |
from going into the value ... otherwise I needed a special case in many places. |
|
164 |
||
165 |
Also notice, that ST/X Floats are what Doubles are in ST-80 - this may change |
|
166 |
in one of the next versions (at least on machines, which provide different float |
|
6674 | 167 |
and double types in their C-compiler). |
168 |
The reason for doung this was to be compatible to both Digitalk and ParcPlace smalltalk |
|
169 |
implementations |
|
170 |
(ParcPlace uses a 4-byte Float and an 8-byte Double class, in contrast to |
|
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Digitalk, which has an 8-byte Float class). |
|
7380 | 172 |
Thus, by providing an 8-byte Float class, code would not loose precicion |
173 |
(although some memory is wasted when porting from VW). |
|
6674 | 174 |
As Digitalk is dead now, things could (should) now be made to be compatible with VW. |
175 |
Notice that ST/X provides an alias called Double, and an extra ShortFloat class, which has 4-byte |
|
176 |
instances. |
|
68 | 177 |
|
1892 | 178 |
Mixed mode arithmetic: |
6674 | 179 |
float op float -> float |
180 |
float op fix -> float |
|
7380 | 181 |
float op fraction -> float |
6674 | 182 |
float op integer -> float |
7380 | 183 |
float op shortFloat -> float |
184 |
float op longFloat -> longFloat |
|
185 |
float op complex -> complex |
|
1892 | 186 |
|
1295 | 187 |
[Class Variables:] |
85 | 188 |
|
7380 | 189 |
[author:] |
190 |
Claus Gittinger |
|
191 |
||
1295 | 192 |
[see also:] |
6674 | 193 |
Number |
7380 | 194 |
ShortFloat LongFloat Fraction FixedPoint Integer Complex |
6674 | 195 |
FloatArray DoubleArray |
68 | 196 |
" |
2215 | 197 |
! |
198 |
||
199 |
errorHandling |
|
200 |
" |
|
201 |
Floating point error handling and signalling depends on the systems |
|
202 |
(actually: the C-runtime systems) ability to handle floating point errors. |
|
203 |
Most systems report errors by raising an OS floatingPoint exception, |
|
204 |
which is mapped to a fpExceptionInterrupt in ST/X. |
|
205 |
However, some systems do return NaN as result. |
|
206 |
||
207 |
Currently, ST/X does not care specially for these systems - it maybe added |
|
208 |
easily, if there is sufficient customer interest, though. |
|
209 |
||
210 |
Try: |
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211 |
|f1 f2| |
2215 | 212 |
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213 |
f1 := 1.0. |
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214 |
f2 := 0.0. |
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215 |
f1 / f2 |
2215 | 216 |
|
217 |
or: |
|
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|
218 |
2 arcSin |
2215 | 219 |
" |
68 | 220 |
! ! |
1 | 221 |
|
2387 | 222 |
!Float class methodsFor:'initialization'! |
223 |
||
224 |
initialize |
|
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225 |
DefaultPrintFormat := '.6' "/ 6 valid digits |
2387 | 226 |
|
227 |
" |
|
228 |
DefaultPrintFormat := '.9' |
|
229 |
DefaultPrintFormat := '.6' |
|
230 |
" |
|
231 |
! ! |
|
232 |
||
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|
233 |
!Float class methodsFor:'instance creation'! |
1 | 234 |
|
235 |
basicNew |
|
236 |
"return a new float - here we return 0.0 |
|
237 |
- floats are usually NOT created this way ... |
|
238 |
Its implemented here to allow things like binary store & load |
|
239 |
of floats. (but even this support will go away eventually, its not |
|
240 |
a good idea to store the bits of a float - the reader might have a |
|
13 | 241 |
totally different representation - so floats will eventually be |
242 |
binary stored in a device independent format." |
|
1 | 243 |
|
244 |
%{ /* NOCONTEXT */ |
|
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use quicker MKFLOAT in FLoat>>basicNew
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245 |
OBJ newFloat; |
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246 |
|
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|
247 |
__qMKFLOAT(newFloat, 0.0); |
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|
248 |
RETURN (newFloat); |
1 | 249 |
%} |
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250 |
! |
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9d23c1f5e4d3
use quicker MKFLOAT in FLoat>>basicNew
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|
251 |
|
4295 | 252 |
fastFromString:aString at:startIndex |
253 |
"return the next Float from the string starting at startIndex. |
|
254 |
No spaces are skipped. |
|
255 |
||
256 |
This is a specially tuned entry (using a low-level C-call), which |
|
257 |
returns garbage if the argument string is not a valid float number. |
|
258 |
It has been added to allow higher speed string decomposition into |
|
259 |
numbers." |
|
260 |
%{ |
|
261 |
if (__isString(aString) && __isSmallInteger(startIndex)) { |
|
4305
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262 |
char *cp = (char *)(__stringVal(aString)); |
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|
263 |
int idx = __intVal(startIndex) - 1; |
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|
264 |
double atof(); |
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|
265 |
double val; |
4295 | 266 |
|
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|
267 |
if ((unsigned)idx < __stringSize(aString)) { |
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|
268 |
val = atof(cp + idx); |
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|
269 |
RETURN (__MKFLOAT(val)); |
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|
270 |
} |
4295 | 271 |
} |
272 |
%}. |
|
273 |
self primitiveFailed. |
|
274 |
||
275 |
" |
|
4296 | 276 |
Float fastFromString:'123.45' at:1 |
277 |
Float fastFromString:'123.45' at:2 |
|
278 |
Float fastFromString:'123.45E4' at:1 |
|
279 |
Float fastFromString:'hello123.45E4' at:6 |
|
4295 | 280 |
Float fastFromString:'12345' at:1 |
281 |
Float fastFromString:'12345' at:2 |
|
282 |
Float fastFromString:'12345' at:3 |
|
283 |
Float fastFromString:'12345' at:4 |
|
284 |
Float fastFromString:'12345' at:5 |
|
285 |
Float fastFromString:'12345' at:6 |
|
286 |
Float fastFromString:'12345' at:0 |
|
4296 | 287 |
Float fastFromString:'hello123.45E4' at:1 |
4295 | 288 |
|
289 |
Time millisecondsToRun:[ |
|
4305
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|
290 |
100000 timesRepeat:[ |
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|
291 |
Float readFrom:'123.45' |
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|
292 |
] |
4295 | 293 |
] |
294 |
" |
|
295 |
||
296 |
" |
|
297 |
Time millisecondsToRun:[ |
|
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298 |
100000 timesRepeat:[ |
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|
299 |
Float fastFromString:'123.45' at:1 |
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|
300 |
] |
4295 | 301 |
] |
302 |
" |
|
303 |
||
304 |
||
305 |
! |
|
306 |
||
3279 | 307 |
fromVAXFloatBytes:b1 b2:b2 b3:b3 b4:b4 |
308 |
"creates a double, given the four vax float bytes to an ieee double. |
|
3427
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|
309 |
For NaNs and Infinity, nil is returned. |
3279 | 310 |
" |
311 |
||
312 |
%{ /* NOCONTEXT */ |
|
313 |
||
314 |
REGISTER union { |
|
4305
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|
315 |
unsigned char b[4]; |
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|
316 |
unsigned int l; |
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|
317 |
float f; |
3279 | 318 |
} r; |
319 |
||
320 |
#ifdef i386 /* actually: LSBFIRST */ |
|
321 |
r.b[3] = __intVal( b2 ); |
|
322 |
r.b[2] = __intVal( b1 ); |
|
323 |
r.b[1] = __intVal( b4 ); |
|
324 |
r.b[0] = __intVal( b3 ); |
|
325 |
#else |
|
326 |
r.b[0] = __intVal( b2 ); |
|
327 |
r.b[1] = __intVal( b1 ); |
|
328 |
r.b[2] = __intVal( b4 ); |
|
329 |
r.b[3] = __intVal( b3 ); |
|
330 |
#endif |
|
331 |
if( (r.l & 0xff800000) != 0x80000000 ) |
|
332 |
{ |
|
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
333 |
if( (r.l & 0x7f800000) > 0x01000000 ) |
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
334 |
r.l -= 0x01000000; |
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
335 |
else |
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
336 |
r.l = 0; |
3279 | 337 |
|
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
338 |
RETURN( __MKFLOAT(r.f) ); |
3279 | 339 |
} |
340 |
%}. |
|
341 |
^ nil |
|
342 |
! |
|
343 |
||
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
344 |
readFrom:aStringOrStream onError:exceptionBlock |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
345 |
"read a float from a string" |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
346 |
|
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
347 |
|num| |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
348 |
|
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
349 |
num := super readFrom:aStringOrStream onError:nil. |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
350 |
num isNil ifTrue:[ |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
351 |
^ exceptionBlock value |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
352 |
]. |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
353 |
^ num asFloat |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
354 |
|
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
355 |
" |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
356 |
Float readFrom:'0.1' |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
357 |
Float readFrom:'0' |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
358 |
" |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
359 |
|
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
360 |
"Created: / 7.1.1998 / 16:17:19 / cg" |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
361 |
"Modified: / 7.1.1998 / 16:18:33 / cg" |
1 | 362 |
! ! |
363 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
364 |
!Float class methodsFor:'binary storage'! |
701 | 365 |
|
1198
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
366 |
binaryDefinitionFrom:aStream manager: manager |
701 | 367 |
|f| |
368 |
||
369 |
f := self basicNew. |
|
1198
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
370 |
self readBinaryIEEEDoubleFrom:aStream into:f. |
701 | 371 |
^ f |
1198
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
372 |
|
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
373 |
"Modified: 16.4.1996 / 21:23:38 / cg" |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
374 |
! |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
375 |
|
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
376 |
readBinaryIEEEDoubleFrom:aStream |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
377 |
"read a float from the binary stream, aStream, |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
378 |
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
|
379 |
|
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
380 |
|f| |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
381 |
|
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
382 |
f := self basicNew. |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
383 |
self readBinaryIEEEDoubleFrom:aStream into:f. |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
384 |
^ f |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
385 |
|
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
386 |
"Created: 16.4.1996 / 20:59:59 / cg" |
701 | 387 |
! |
388 |
||
389 |
readBinaryIEEEDoubleFrom:aStream into:aFloat |
|
390 |
"read the receivers value from the binary stream, aStream, |
|
391 |
interpreting the next bytes as an IEEE formatted 8-byte float" |
|
392 |
||
393 |
" |
|
394 |
this implementation is wrong: does not work on non-IEEE machines |
|
395 |
(to date all machines where ST/X is running on use |
|
396 |
IEEE float format. Need more here, when porting ST/X to 370's) |
|
397 |
" |
|
3427
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
398 |
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
|
399 |
|
701 | 400 |
UninterpretedBytes isBigEndian ifFalse:[ |
401 |
"swap the bytes" |
|
402 |
8 to:1 by:-1 do:[:i | |
|
403 |
aFloat basicAt:i put:(aStream next) |
|
404 |
]. |
|
405 |
^ self |
|
406 |
]. |
|
407 |
1 to:8 do:[:i | |
|
408 |
aFloat basicAt:i put:aStream next |
|
409 |
] |
|
410 |
! |
|
411 |
||
412 |
storeBinaryIEEEDouble:aFloat on:aStream |
|
413 |
"store aFloat as an IEEE formatted 8-byte float |
|
414 |
onto the binary stream, aStream" |
|
415 |
||
416 |
" |
|
417 |
this implementation is wrong: does not work on non-IEEE machines |
|
418 |
(to date all machines where ST/X is running on use |
|
419 |
IEEE float format. Need more here, when porting ST/X to 370's) |
|
420 |
" |
|
3427
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
421 |
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
|
422 |
|
701 | 423 |
UninterpretedBytes isBigEndian ifFalse:[ |
424 |
"swap the bytes" |
|
425 |
8 to:1 by:-1 do:[:i | |
|
426 |
aStream nextPut:(aFloat basicAt:i). |
|
427 |
]. |
|
428 |
^ self |
|
429 |
]. |
|
430 |
1 to:8 do:[:i | |
|
431 |
aStream nextPut:(aFloat basicAt:i). |
|
432 |
]. |
|
433 |
! ! |
|
434 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
435 |
!Float class methodsFor:'constants'! |
1 | 436 |
|
3945
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
437 |
NaN |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
438 |
"return the constant NaN (not a Number). |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
439 |
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
|
440 |
few selected architectures." |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
441 |
|
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
442 |
%{ |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
443 |
#if defined(LINUX) && defined(i386) |
3955 | 444 |
# ifdef NAN |
445 |
RETURN (__MKFLOAT(NAN)); |
|
446 |
# else |
|
3945
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
447 |
RETURN (__MKFLOAT(_SNAN)); |
3955 | 448 |
# endif |
3945
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
449 |
#endif |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
450 |
%}. |
7355 | 451 |
^ 0.0 uncheckedDivide:0.0 |
3945
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
452 |
|
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
453 |
" |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
454 |
Float NaN |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
455 |
Float NaN + 0.0 |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
456 |
Float NaN + Float NaN |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
457 |
0.0 + Float NaN |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
458 |
" |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
459 |
! |
1745e97364cb
added preliminary version of NaN
Claus Gittinger <cg@exept.de>
parents:
3903
diff
changeset
|
460 |
|
6341 | 461 |
infinity |
7355 | 462 |
"return a float representing infinity" |
6341 | 463 |
|
7355 | 464 |
^ 1.0 uncheckedDivide:0.0 |
6341 | 465 |
! |
466 |
||
701 | 467 |
pi |
1260 | 468 |
"return the constant pi as Float" |
1 | 469 |
|
3244 | 470 |
"/ dont expect this many valid digits on all machines; |
471 |
"/ The actual precision is very CPU specific. |
|
472 |
||
6063 | 473 |
^ 3.14159265358979323846264338327950288419716939937510582097494459 |
1260 | 474 |
|
475 |
"Modified: 23.4.1996 / 09:27:02 / cg" |
|
1 | 476 |
! |
477 |
||
478 |
unity |
|
1260 | 479 |
"return the neutral element for multiplication (1.0) as Float" |
1 | 480 |
|
481 |
^ 1.0 |
|
1260 | 482 |
|
483 |
"Modified: 23.4.1996 / 09:27:09 / cg" |
|
1 | 484 |
! |
485 |
||
701 | 486 |
zero |
1260 | 487 |
"return the neutral element for addition (0.0) as Float" |
1 | 488 |
|
701 | 489 |
^ 0.0 |
1260 | 490 |
|
491 |
"Modified: 23.4.1996 / 09:27:15 / cg" |
|
1 | 492 |
! ! |
493 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
494 |
!Float class methodsFor:'queries'! |
3 | 495 |
|
6898 | 496 |
exponentCharacter |
497 |
^ $d |
|
498 |
! |
|
499 |
||
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
500 |
hasSharedInstances |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
501 |
"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
|
502 |
with the same value are identical. |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
503 |
Although not really shared, floats should be treated |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
504 |
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
|
505 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
506 |
^ true |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
507 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
508 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
509 |
! |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
510 |
|
3 | 511 |
isBuiltInClass |
1264 | 512 |
"return true if this class is known by the run-time-system. |
513 |
Here, true is returned for myself, false for subclasses." |
|
3 | 514 |
|
515 |
^ self == Float |
|
1264 | 516 |
|
517 |
"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
|
518 |
! |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
519 |
|
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
520 |
isIEEEFormat |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
521 |
"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
|
522 |
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
|
523 |
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
|
524 |
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
|
525 |
machine). |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
526 |
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
|
527 |
(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
|
528 |
|
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
529 |
^ true "/ this may be a lie |
7355 | 530 |
! |
531 |
||
532 |
numBitsInExponent |
|
533 |
"answer the number of bits in the exponent |
|
534 |
This is an IEEE float, where 11 bits are available: |
|
535 |
seeeeeee eeeemmmm mmmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm |
|
536 |
" |
|
537 |
||
538 |
^ 11 |
|
539 |
! |
|
540 |
||
541 |
numBitsInMantissa |
|
542 |
"answer the number of bits in the mantissa. |
|
543 |
This is an IEEE double, where 52 bits (the hidden one is not counted here) are available: |
|
544 |
seeeeeee eeeemmmm mmmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm mmmmmmmm |
|
545 |
" |
|
546 |
||
547 |
^ 52 |
|
548 |
! |
|
549 |
||
550 |
precision |
|
551 |
"answer the precision of a Float (in bits) |
|
552 |
This is an IEEE double, only the fraction from the normalized mantissa is stored |
|
553 |
and so there is a hidden bit and the mantissa is actually represented |
|
554 |
by 53 binary digits" |
|
555 |
||
556 |
^ 53 |
|
557 |
! |
|
558 |
||
559 |
radix |
|
560 |
"answer the radix of a Floats exponent |
|
561 |
This is an IEEE float, which is represented as binary" |
|
562 |
||
563 |
^ 2 "must be careful here, whenever ST/X is used on VAX or a 370" |
|
3 | 564 |
! ! |
565 |
||
1 | 566 |
!Float methodsFor:'arithmetic'! |
567 |
||
701 | 568 |
* aNumber |
569 |
"return the product of the receiver and the argument, aNumber" |
|
570 |
||
571 |
%{ /* NOCONTEXT */ |
|
572 |
||
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
573 |
/* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
574 |
* notice: |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
575 |
* the following inline code handles some common cases, |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
576 |
* and exists as an optimization, to speed up those cases. |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
577 |
* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
578 |
* Conceptionally, (and for most other argument types), |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
579 |
* mixed arithmetic is implemented by double dispatching |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
580 |
* (see the message send at the bottom) |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
581 |
*/ |
701 | 582 |
OBJ newFloat; |
583 |
double result; |
|
584 |
||
585 |
if (__isSmallInteger(aNumber)) { |
|
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
586 |
result = __floatVal(self) * (double)(__intVal(aNumber)); |
701 | 587 |
retResult: |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
588 |
__qMKFLOAT(newFloat, result); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
589 |
RETURN ( newFloat ); |
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
590 |
} |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
591 |
if (__isFloatLike(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
592 |
result = __floatVal(self) * __floatVal(aNumber); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
593 |
goto retResult; |
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
594 |
} |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
595 |
if (__isShortFloat(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
596 |
result = __floatVal(self) * (double)(__shortFloatVal(aNumber)); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
597 |
goto retResult; |
701 | 598 |
} |
3530
a1af5dafc3ee
float op shortFloat added inline.
Claus Gittinger <cg@exept.de>
parents:
3472
diff
changeset
|
599 |
%}. |
701 | 600 |
^ aNumber productFromFloat:self |
601 |
! |
|
602 |
||
1 | 603 |
+ aNumber |
604 |
"return the sum of the receiver and the argument, aNumber" |
|
605 |
||
606 |
%{ /* NOCONTEXT */ |
|
13 | 607 |
|
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
608 |
/* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
609 |
* notice: |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
610 |
* the following inline code handles some common cases, |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
611 |
* and exists as an optimization, to speed up those cases. |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
612 |
* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
613 |
* Conceptionally, (and for most other argument types), |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
614 |
* mixed arithmetic is implemented by double dispatching |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
615 |
* (see the message send at the bottom) |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
616 |
*/ |
1 | 617 |
OBJ newFloat; |
618 |
double result; |
|
619 |
||
250 | 620 |
if (__isSmallInteger(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
621 |
result = __floatVal(self) + (double)(__intVal(aNumber)); |
1 | 622 |
retResult: |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
623 |
__qMKFLOAT(newFloat, result); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
624 |
RETURN ( newFloat ); |
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
625 |
} |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
626 |
if (__isFloatLike(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
627 |
result = __floatVal(self) + __floatVal(aNumber); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
628 |
goto retResult; |
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
629 |
} |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
630 |
if (__isShortFloat(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
631 |
result = __floatVal(self) + (double)(__shortFloatVal(aNumber)); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
632 |
goto retResult; |
1 | 633 |
} |
3530
a1af5dafc3ee
float op shortFloat added inline.
Claus Gittinger <cg@exept.de>
parents:
3472
diff
changeset
|
634 |
%}. |
1 | 635 |
^ aNumber sumFromFloat:self |
636 |
! |
|
637 |
||
638 |
- aNumber |
|
639 |
"return the difference of the receiver and the argument, aNumber" |
|
640 |
||
641 |
%{ /* NOCONTEXT */ |
|
13 | 642 |
|
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
643 |
/* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
644 |
* notice: |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
645 |
* the following inline code handles some common cases, |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
646 |
* and exists as an optimization, to speed up those cases. |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
647 |
* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
648 |
* Conceptionally, (and for most other argument types), |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
649 |
* mixed arithmetic is implemented by double dispatching |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
650 |
* (see the message send at the bottom) |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
651 |
*/ |
1 | 652 |
OBJ newFloat; |
653 |
double result; |
|
654 |
||
250 | 655 |
if (__isSmallInteger(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
656 |
result = __floatVal(self) - (double)(__intVal(aNumber)); |
1 | 657 |
retResult: |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
658 |
__qMKFLOAT(newFloat, result); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
659 |
RETURN ( newFloat ); |
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
660 |
} |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
661 |
if (__isFloatLike(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
662 |
result = __floatVal(self) - __floatVal(aNumber); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
663 |
goto retResult; |
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
664 |
} |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
665 |
if (__isShortFloat(aNumber)) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
666 |
result = __floatVal(self) - (double)(__shortFloatVal(aNumber)); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
667 |
goto retResult; |
1 | 668 |
} |
3530
a1af5dafc3ee
float op shortFloat added inline.
Claus Gittinger <cg@exept.de>
parents:
3472
diff
changeset
|
669 |
%}. |
1 | 670 |
^ aNumber differenceFromFloat:self |
671 |
! |
|
672 |
||
673 |
/ aNumber |
|
674 |
"return the quotient of the receiver and the argument, aNumber" |
|
675 |
||
676 |
%{ /* NOCONTEXT */ |
|
677 |
||
6064
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
678 |
/* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
679 |
* notice: |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
680 |
* the following inline code handles some common cases, |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
681 |
* and exists as an optimization, to speed up those cases. |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
682 |
* |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
683 |
* Conceptionally, (and for most other argument types), |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
684 |
* mixed arithmetic is implemented by double dispatching |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
685 |
* (see the message send at the bottom) |
04bde2eeb749
comments about double dispatching
Claus Gittinger <cg@exept.de>
parents:
6063
diff
changeset
|
686 |
*/ |
1 | 687 |
OBJ newFloat; |
688 |
double result, val; |
|
689 |
||
250 | 690 |
if (__isSmallInteger(aNumber)) { |
7141
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
691 |
if (aNumber != __MKSMALLINT(0)) { |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
692 |
result = __floatVal(self) / ( (double)__intVal(aNumber)) ; |
1 | 693 |
retResult: |
7141
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
694 |
__qMKFLOAT(newFloat, result); |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
695 |
RETURN ( newFloat ); |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
696 |
} |
3530
a1af5dafc3ee
float op shortFloat added inline.
Claus Gittinger <cg@exept.de>
parents:
3472
diff
changeset
|
697 |
} else if (__isFloatLike(aNumber)) { |
7141
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
698 |
val = __floatVal(aNumber); |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
699 |
if (val != 0.0) { |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
700 |
result = __floatVal(self) / val; |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
701 |
goto retResult; |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
702 |
} |
3530
a1af5dafc3ee
float op shortFloat added inline.
Claus Gittinger <cg@exept.de>
parents:
3472
diff
changeset
|
703 |
} else if (__isShortFloat(aNumber)) { |
7141
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
704 |
val = (double)(__shortFloatVal(aNumber)); |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
705 |
if (val != 0.0) { |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
706 |
result = __floatVal(self) / val; |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
707 |
goto retResult; |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
708 |
} |
1 | 709 |
} |
3530
a1af5dafc3ee
float op shortFloat added inline.
Claus Gittinger <cg@exept.de>
parents:
3472
diff
changeset
|
710 |
%}. |
1 | 711 |
((aNumber == 0) or:[aNumber = 0.0]) ifTrue:[ |
7141
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
712 |
" |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
713 |
No, you shalt not divide by zero |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
714 |
" |
033f2c26d8e6
replaced refs to DivisionByZeroSignal with ZeroDivide
Claus Gittinger <cg@exept.de>
parents:
6898
diff
changeset
|
715 |
^ ZeroDivide raiseRequestWith:thisContext. |
1 | 716 |
]. |
717 |
^ aNumber quotientFromFloat:self |
|
718 |
! |
|
719 |
||
5411 | 720 |
abs |
721 |
"return the absolute value of the receiver |
|
722 |
reimplemented here for speed" |
|
723 |
||
724 |
%{ /* NOCONTEXT */ |
|
725 |
||
726 |
OBJ newFloat; |
|
727 |
double val =__floatVal(self); |
|
728 |
double rslt; |
|
729 |
||
730 |
if (val < 0.0) { |
|
7355 | 731 |
rslt = -val; |
732 |
__qMKFLOAT(newFloat, rslt); |
|
733 |
RETURN ( newFloat ); |
|
5411 | 734 |
} |
735 |
RETURN (self); |
|
736 |
%}. |
|
737 |
||
738 |
" |
|
739 |
3.0 abs |
|
740 |
-3.0 abs |
|
741 |
" |
|
742 |
! |
|
743 |
||
1 | 744 |
negated |
745 |
"return myself negated" |
|
746 |
||
747 |
%{ /* NOCONTEXT */ |
|
3 | 748 |
OBJ newFloat; |
1133 | 749 |
double rslt = - __floatVal(self); |
3 | 750 |
|
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
751 |
__qMKFLOAT(newFloat, rslt); |
3 | 752 |
RETURN ( newFloat ); |
5411 | 753 |
%}. |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
754 |
! |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
755 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
756 |
uncheckedDivide:aNumber |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
757 |
"return the quotient of the receiver and the argument, aNumber. |
7355 | 758 |
Do not check for divide by zero (return NaN or infinity). |
759 |
This operation is provided for emulators of other languages/semantics, |
|
760 |
where no exception is raised for these results (i.e. Java). |
|
761 |
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
|
762 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
763 |
%{ /* NOCONTEXT */ |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
764 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
765 |
OBJ newFloat; |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
766 |
double result, val; |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
767 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
768 |
if (__isSmallInteger(aNumber)) { |
7355 | 769 |
result = __floatVal(self) / ( (double)__intVal(aNumber)) ; |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
770 |
retResult: |
7355 | 771 |
__qMKFLOAT(newFloat, result); |
772 |
RETURN ( newFloat ); |
|
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
773 |
} |
7355 | 774 |
if (__isFloatLike(aNumber)) { |
775 |
val = __floatVal(aNumber); |
|
776 |
result = __floatVal(self) / val; |
|
777 |
goto retResult; |
|
778 |
} |
|
779 |
if (__isShortFloat(aNumber)) { |
|
780 |
val = (double)(__shortFloatVal(aNumber)); |
|
781 |
result = __floatVal(self) / val; |
|
782 |
goto retResult; |
|
783 |
} |
|
784 |
%}. |
|
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
785 |
^ aNumber quotientFromFloat:self |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
786 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
787 |
" |
7355 | 788 |
0.0 uncheckedDivide:0.0 |
789 |
1.0 uncheckedDivide:0.0 |
|
790 |
-1.0 uncheckedDivide:0.0 |
|
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
791 |
" |
1 | 792 |
! ! |
793 |
||
701 | 794 |
!Float methodsFor:'binary storage'! |
795 |
||
796 |
storeBinaryDefinitionOn:stream manager:manager |
|
1260 | 797 |
"store the receiver in a binary format on stream. |
798 |
This is an internal interface for binary storage mechanism." |
|
799 |
||
701 | 800 |
manager putIdOfClass:(self class) on:stream. |
801 |
Float storeBinaryIEEEDouble:self on:stream. |
|
1260 | 802 |
|
803 |
"Modified: 23.4.1996 / 09:29:48 / cg" |
|
701 | 804 |
! ! |
805 |
||
5238 | 806 |
!Float methodsFor:'coercing & converting'! |
1 | 807 |
|
3014 | 808 |
asDouble |
809 |
"ST80 compatibility: return a float with same value - thats me" |
|
810 |
||
811 |
^ self |
|
812 |
! |
|
813 |
||
701 | 814 |
asFloat |
815 |
"return a float with same value - thats me" |
|
816 |
||
817 |
^ self |
|
818 |
! |
|
819 |
||
820 |
asInteger |
|
821 |
"return an integer with same value - might truncate" |
|
822 |
||
1 | 823 |
%{ /* NOCONTEXT */ |
1670 | 824 |
double dVal; |
13 | 825 |
|
1670 | 826 |
dVal = __floatVal(self); |
3427
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
827 |
|
1670 | 828 |
if ((dVal >= (double)_MIN_INT) && (dVal <= (double)_MAX_INT)) { |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
829 |
RETURN ( __MKSMALLINT( (INT)dVal) ); |
701 | 830 |
} |
1198
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
831 |
%}. |
701 | 832 |
^ super asInteger |
833 |
||
834 |
"12345.0 asInteger" |
|
835 |
"1e15 asInteger" |
|
1 | 836 |
! |
837 |
||
5986 | 838 |
asLongFloat |
839 |
"return a longFloat with same value as receiver" |
|
840 |
||
7355 | 841 |
^ LongFloat fromFloat:self |
5986 | 842 |
|
843 |
" |
|
844 |
123 asFloat asLongFloat |
|
845 |
" |
|
846 |
||
847 |
"Created: / 7.9.2001 / 13:43:04 / cg" |
|
848 |
"Modified: / 7.9.2001 / 13:43:16 / cg" |
|
849 |
! |
|
850 |
||
1198
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
851 |
asShortFloat |
7355 | 852 |
"return a shortFloat with same value as receiver. |
853 |
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
|
854 |
|
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
855 |
%{ /* NOCONTEXT */ |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
856 |
|
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
857 |
OBJ dummy = @global(ShortFloat); |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
858 |
OBJ newFloat; |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
859 |
float fVal = (float)__floatVal(self); |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
860 |
|
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
861 |
__qMKSFLOAT(newFloat, fVal); |
1198
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
862 |
RETURN ( newFloat ); |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
863 |
%} |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
864 |
! |
284eeba6b719
docu & limited shortFloat support
Claus Gittinger <cg@exept.de>
parents:
1133
diff
changeset
|
865 |
|
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
866 |
asTrueFraction |
7355 | 867 |
"Answer a fraction or integer that EXACTLY represents self, |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
868 |
a double precision IEEE floating point number. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
869 |
Floats are stored in the same form on all platforms. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
870 |
(Does not handle gradual underflow or NANs.) |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
871 |
By David N. Smith with significant performance |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
872 |
improvements by Luciano Esteban Notarfrancesco. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
873 |
(Version of 11April97)" |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
874 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
875 |
|shifty sign expPart exp fraction fractionPart result zeroBitsCount| |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
876 |
|
6344 | 877 |
self isFinite ifFalse:[ |
878 |
^ self class |
|
879 |
raise:#conversionErrorSignal |
|
880 |
receiver:self |
|
881 |
selector:#asTrueFraction |
|
882 |
arguments:#() |
|
883 |
errorString:'Cannot represent non-finite float as a fraction'. |
|
6341 | 884 |
]. |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
885 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
886 |
"Extract the bits of an IEEE double float " |
6341 | 887 |
shifty := LargeInteger basicNew numberOfDigits:8. |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
888 |
UninterpretedBytes isBigEndian ifTrue:[ |
7355 | 889 |
"/ shifty := ((self longWordAt: 1) bitShift: 32) + (self longWordAt: 2). |
6341 | 890 |
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
|
891 |
] ifFalse:[ |
6341 | 892 |
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
|
893 |
]. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
894 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
895 |
" Extract the sign and the biased exponent " |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
896 |
sign := (shifty bitShift: -63) = 0 ifTrue: [1] ifFalse: [-1]. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
897 |
expPart := (shifty bitShift: -52) bitAnd: 16r7FF. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
898 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
899 |
" 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
|
900 |
fractionPart := shifty bitAnd: 16r000FFFFFFFFFFFFF. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
901 |
( expPart=0 and: [ fractionPart=0 ] ) ifTrue: [ ^ 0 ]. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
902 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
903 |
" Replace omitted leading 1 in fraction " |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
904 |
fraction := fractionPart bitOr: 16r0010000000000000. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
905 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
906 |
"Unbias exponent: 16r3FF is bias; 52 is fraction width" |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
907 |
exp := 16r3FF + 52 - expPart. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
908 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
909 |
" 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
|
910 |
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
|
911 |
the (huge) time otherwise spent in #gcd:. " |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
912 |
exp negative ifTrue: [ |
6341 | 913 |
result := sign * fraction bitShift: exp negated |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
914 |
] ifFalse:[ |
6341 | 915 |
zeroBitsCount := fraction lowBit - 1. |
916 |
exp := exp - zeroBitsCount. |
|
917 |
exp <= 0 ifTrue: [ |
|
918 |
zeroBitsCount := zeroBitsCount + exp. |
|
919 |
"exp := 0." " Not needed; exp not refernced again " |
|
920 |
result := sign * fraction bitShift:zeroBitsCount negated |
|
921 |
] ifFalse: [ |
|
922 |
result := Fraction |
|
923 |
numerator: (sign * fraction bitShift: zeroBitsCount negated) |
|
924 |
denominator: (1 bitShift:exp) |
|
925 |
] |
|
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
926 |
]. |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
927 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
928 |
"Low cost validation omitted after extensive testing" |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
929 |
"(result asFloat = self) ifFalse: [self error: 'asTrueFraction validation failed']." |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
930 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
931 |
^ result |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
932 |
|
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
933 |
" |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
934 |
0.3 asTrueFraction |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
935 |
1.25 asTrueFraction |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
936 |
0.25 asTrueFraction |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
937 |
-0.25 asTrueFraction |
6341 | 938 |
3e37 asTrueFraction |
939 |
Float NaN asTrueFraction |
|
6344 | 940 |
Float infinity asTrueFraction |
4615
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
941 |
" |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
942 |
! |
e480d1e6090f
largFloat -> largeInt conversion fixed.
Claus Gittinger <cg@exept.de>
parents:
4594
diff
changeset
|
943 |
|
701 | 944 |
coerce:aNumber |
945 |
"return aNumber converted into receivers type" |
|
1 | 946 |
|
701 | 947 |
^ aNumber asFloat |
948 |
! |
|
13 | 949 |
|
701 | 950 |
generality |
951 |
"return the generality value - see ArithmeticValue>>retry:coercing:" |
|
952 |
||
953 |
^ 80 |
|
1 | 954 |
! ! |
955 |
||
956 |
!Float methodsFor:'comparing'! |
|
957 |
||
958 |
< aNumber |
|
959 |
"return true, if the argument is greater" |
|
960 |
||
961 |
%{ /* NOCONTEXT */ |
|
13 | 962 |
|
7355 | 963 |
if (__isSmallInteger(aNumber)) { |
964 |
RETURN ( (__floatVal(self) < (double)(__intVal(aNumber))) ? true : false ); |
|
965 |
} |
|
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
966 |
if (aNumber != nil) { |
7355 | 967 |
if (__qIsFloatLike(aNumber)) { |
968 |
RETURN ( (__floatVal(self) < __floatVal(aNumber)) ? true : false ); |
|
969 |
} |
|
970 |
if (__qIsShortFloat(aNumber)) { |
|
971 |
RETURN ( (__floatVal(self) < (double)(__shortFloatVal(aNumber))) ? true : false ); |
|
972 |
} |
|
1 | 973 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
974 |
%}. |
1 | 975 |
^ aNumber lessFromFloat:self |
976 |
! |
|
977 |
||
978 |
<= aNumber |
|
979 |
"return true, if the argument is greater or equal" |
|
980 |
||
981 |
%{ /* NOCONTEXT */ |
|
13 | 982 |
|
7355 | 983 |
if (__isSmallInteger(aNumber)) { |
984 |
RETURN ( (__floatVal(self) <= (double)(__intVal(aNumber))) ? true : false ); |
|
985 |
} |
|
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
986 |
if (aNumber != nil) { |
7355 | 987 |
if (__qIsFloatLike(aNumber)) { |
988 |
RETURN ( (__floatVal(self) <= __floatVal(aNumber)) ? true : false ); |
|
989 |
} |
|
990 |
if (__qIsShortFloat(aNumber)) { |
|
991 |
RETURN ( (__floatVal(self) <= (double)(__shortFloatVal(aNumber))) ? true : false ); |
|
992 |
} |
|
1 | 993 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
994 |
%}. |
1 | 995 |
^ self retry:#<= coercing:aNumber |
996 |
! |
|
997 |
||
998 |
= aNumber |
|
7355 | 999 |
"return true, if the argument represents the same numeric value |
1000 |
as the receiver, false otherwise" |
|
1 | 1001 |
|
1002 |
%{ /* NOCONTEXT */ |
|
13 | 1003 |
|
7355 | 1004 |
if (__isSmallInteger(aNumber)) { |
1005 |
RETURN ( (__floatVal(self) == (double)(__intVal(aNumber))) ? true : false ); |
|
1006 |
} |
|
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1007 |
if (aNumber != nil) { |
7355 | 1008 |
if (__qIsFloatLike(aNumber)) { |
1009 |
RETURN ( (__floatVal(self) == __floatVal(aNumber)) ? true : false ); |
|
1010 |
} |
|
1011 |
if (__qIsShortFloat(aNumber)) { |
|
1012 |
RETURN ( (__floatVal(self) == (double)(__shortFloatVal(aNumber))) ? true : false ); |
|
1013 |
} |
|
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1014 |
} else { |
7355 | 1015 |
RETURN (false); |
1 | 1016 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1017 |
%}. |
7355 | 1018 |
^ aNumber equalFromFloat:self |
1 | 1019 |
! |
1020 |
||
701 | 1021 |
> aNumber |
1022 |
"return true, if the argument is less" |
|
1 | 1023 |
|
1024 |
%{ /* NOCONTEXT */ |
|
13 | 1025 |
|
7355 | 1026 |
if (__isSmallInteger(aNumber)) { |
1027 |
RETURN ( (__floatVal(self) > (double)(__intVal(aNumber))) ? true : false ); |
|
1028 |
} |
|
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1029 |
if (aNumber != nil) { |
7355 | 1030 |
if (__qIsFloatLike(aNumber)) { |
1031 |
RETURN ( (__floatVal(self) > __floatVal(aNumber)) ? true : false ); |
|
1032 |
} |
|
1033 |
if (__qIsShortFloat(aNumber)) { |
|
1034 |
RETURN ( (__floatVal(self) > (double)(__shortFloatVal(aNumber))) ? true : false ); |
|
1035 |
} |
|
1 | 1036 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1037 |
%}. |
701 | 1038 |
^ self retry:#> coercing:aNumber |
1039 |
! |
|
1040 |
||
1041 |
>= aNumber |
|
1042 |
"return true, if the argument is less or equal" |
|
1043 |
||
1044 |
%{ /* NOCONTEXT */ |
|
1045 |
||
7355 | 1046 |
if (__isSmallInteger(aNumber)) { |
1047 |
RETURN ( (__floatVal(self) >= (double)(__intVal(aNumber))) ? true : false ); |
|
1048 |
} |
|
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1049 |
if (aNumber != nil) { |
7355 | 1050 |
if (__qIsFloatLike(aNumber)) { |
1051 |
RETURN ( (__floatVal(self) >= __floatVal(aNumber)) ? true : false ); |
|
1052 |
} |
|
1053 |
if (__qIsShortFloat(aNumber)) { |
|
1054 |
RETURN ( (__floatVal(self) >= (double)(__shortFloatVal(aNumber))) ? true : false ); |
|
1055 |
} |
|
701 | 1056 |
} |
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1057 |
%}. |
701 | 1058 |
^ self retry:#>= coercing:aNumber |
92 | 1059 |
! |
1060 |
||
1061 |
hash |
|
1062 |
"return a number for hashing; redefined, since floats compare |
|
1063 |
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
|
1064 |
as 3 hash." |
92 | 1065 |
|
305 | 1066 |
|i| |
92 | 1067 |
|
1068 |
(self >= SmallInteger minVal and:[self <= SmallInteger maxVal]) ifTrue:[ |
|
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1069 |
i := self asInteger. |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1070 |
self = i ifTrue:[ |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1071 |
^ i hash |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1072 |
]. |
92 | 1073 |
]. |
1074 |
||
1075 |
" |
|
305 | 1076 |
mhmh take some of my value-bits to hash on |
92 | 1077 |
" |
4590 | 1078 |
^ (((self basicAt:8) bitAnd:16r1F) bitShift:24) + |
305 | 1079 |
((self basicAt:7) bitShift:16) + |
1080 |
((self basicAt:6) bitShift:8) + |
|
4592 | 1081 |
(((self basicAt:5) + (self basicAt:1) + (self basicAt:2)) bitAnd:16rFF) |
92 | 1082 |
|
1083 |
" |
|
1084 |
3 hash |
|
1085 |
3.0 hash |
|
1086 |
3.1 hash |
|
1087 |
3.14159 hash |
|
1088 |
31.4159 hash |
|
1089 |
3.141591 hash |
|
1090 |
1.234567890123456 hash |
|
1091 |
1.234567890123457 hash |
|
1092 |
Set withAll:#(3 3.0 99 99.0 3.1415) |
|
1093 |
" |
|
1 | 1094 |
! |
1095 |
||
701 | 1096 |
~= aNumber |
1097 |
"return true, if the arguments value are not equal" |
|
1 | 1098 |
|
1099 |
%{ /* NOCONTEXT */ |
|
1100 |
||
7355 | 1101 |
if (__isSmallInteger(aNumber)) { |
1102 |
RETURN ( (__floatVal(self) != (double)(__intVal(aNumber))) ? true : false ); |
|
1103 |
} |
|
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1104 |
if (aNumber != nil) { |
7355 | 1105 |
if (__qIsFloatLike(aNumber)) { |
1106 |
RETURN ( (__floatVal(self) != __floatVal(aNumber)) ? true : false ); |
|
1107 |
} |
|
1108 |
if (__qIsShortFloat(aNumber)) { |
|
1109 |
RETURN ( (__floatVal(self) != (double)(__shortFloatVal(aNumber))) ? true : false ); |
|
1110 |
} |
|
3115
1ecfb9118163
dont check twice for nil (in compare ops)
Claus Gittinger <cg@exept.de>
parents:
3014
diff
changeset
|
1111 |
} else { |
7355 | 1112 |
RETURN ( true ); |
1 | 1113 |
} |
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1114 |
%}. |
7355 | 1115 |
^ super ~= aNumber |
1 | 1116 |
! ! |
1117 |
||
1118 |
!Float methodsFor:'mathematical functions'! |
|
1119 |
||
701 | 1120 |
exp |
1121 |
"return e raised to the power of the receiver" |
|
1122 |
||
1123 |
%{ /* NOCONTEXT */ |
|
1124 |
||
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1125 |
double rslt; |
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1126 |
OBJ newFloat; |
701 | 1127 |
|
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1128 |
__threadErrno = 0; |
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1129 |
rslt = exp(__floatVal(self)); |
3399
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1130 |
#ifdef LINUX /* and maybe others */ |
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1131 |
if (! isnan(rslt)) |
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1132 |
#endif |
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1133 |
if (__threadErrno == 0) { |
6195 | 1134 |
__qMKFLOAT(newFloat, rslt); |
1135 |
RETURN ( newFloat ); |
|
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1136 |
} |
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1137 |
%}. |
3395
02f47135d80f
pass messageSend as parameter to domainError exception
Claus Gittinger <cg@exept.de>
parents:
3279
diff
changeset
|
1138 |
^ self class |
6195 | 1139 |
raise:#domainErrorSignal |
1140 |
receiver:self |
|
1141 |
selector:#exp |
|
1142 |
arguments:#() |
|
1143 |
errorString:'bad receiver in exp' |
|
1144 |
||
1145 |
"Modified: / 16.11.2001 / 14:14:29 / cg" |
|
701 | 1146 |
! |
1147 |
||
1 | 1148 |
ln |
6193 | 1149 |
"return the natural logarithm of myself. |
1150 |
Raises an exception, if the receiver is less or equal to zero." |
|
1 | 1151 |
|
1152 |
%{ /* NOCONTEXT */ |
|
1153 |
||
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1154 |
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
|
1155 |
OBJ newFloat; |
1 | 1156 |
|
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1157 |
val = __floatVal(self); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1158 |
|
6193 | 1159 |
#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
|
1160 |
if (val > 0.0) |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1161 |
#endif |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1162 |
{ |
6193 | 1163 |
__threadErrno = 0; |
1164 |
rslt = log(val); |
|
3399
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1165 |
#ifdef LINUX /* and maybe others */ |
6193 | 1166 |
if (! isnan(rslt)) |
3399
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1167 |
#endif |
6193 | 1168 |
{ |
1169 |
if (__threadErrno == 0) { |
|
1170 |
__qMKFLOAT(newFloat, rslt); |
|
1171 |
RETURN ( newFloat ); |
|
1172 |
} |
|
1173 |
} |
|
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1174 |
} |
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1175 |
%}. |
142 | 1176 |
" |
1177 |
an invalid value for logarithm |
|
1178 |
" |
|
3395
02f47135d80f
pass messageSend as parameter to domainError exception
Claus Gittinger <cg@exept.de>
parents:
3279
diff
changeset
|
1179 |
^ self class |
6193 | 1180 |
raise:#domainErrorSignal |
1181 |
receiver:self |
|
1182 |
selector:#ln |
|
6195 | 1183 |
arguments:#() |
6193 | 1184 |
errorString:'bad receiver in ln' |
1185 |
||
6195 | 1186 |
"Modified: / 16.11.2001 / 14:14:33 / cg" |
1 | 1187 |
! |
1188 |
||
7373 | 1189 |
log10 |
1190 |
"return the bavse-10 logarithm of myself. |
|
1191 |
Raises an exception, if the receiver is less or equal to zero." |
|
1192 |
||
1193 |
%{ /* NOCONTEXT */ |
|
1194 |
||
1195 |
double val, rslt; |
|
1196 |
OBJ newFloat; |
|
1197 |
||
1198 |
val = __floatVal(self); |
|
1199 |
||
1200 |
#ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
|
1201 |
if (val > 0.0) |
|
1202 |
#endif |
|
1203 |
{ |
|
1204 |
__threadErrno = 0; |
|
1205 |
rslt = log10(val); |
|
1206 |
#ifdef LINUX /* and maybe others */ |
|
1207 |
if (! isnan(rslt)) |
|
1208 |
#endif |
|
1209 |
{ |
|
1210 |
if (__threadErrno == 0) { |
|
1211 |
__qMKFLOAT(newFloat, rslt); |
|
1212 |
RETURN ( newFloat ); |
|
1213 |
} |
|
1214 |
} |
|
1215 |
} |
|
1216 |
%}. |
|
1217 |
" |
|
1218 |
an invalid value for logarithm |
|
1219 |
" |
|
1220 |
^ self class |
|
1221 |
raise:#domainErrorSignal |
|
1222 |
receiver:self |
|
1223 |
selector:#log10 |
|
1224 |
arguments:#() |
|
1225 |
errorString:'bad receiver in log10' |
|
1226 |
||
1227 |
"Modified: / 16.11.2001 / 14:14:33 / cg" |
|
1228 |
! |
|
1229 |
||
1 | 1230 |
raisedTo:aNumber |
1231 |
"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
|
1232 |
|
1 | 1233 |
|n| |
1234 |
||
1235 |
n := aNumber asFloat. |
|
1236 |
%{ |
|
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1237 |
double rslt; |
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1238 |
OBJ newFloat; |
1 | 1239 |
|
283 | 1240 |
if (__isFloatLike(n)) { |
6195 | 1241 |
__threadErrno = 0; |
1242 |
rslt = pow(__floatVal(self), __floatVal(n)); |
|
3399
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1243 |
#ifdef LINUX /* and maybe others */ |
6195 | 1244 |
if (! isnan(rslt)) |
3399
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1245 |
#endif |
6195 | 1246 |
if (__threadErrno == 0) { |
1247 |
__qMKFLOAT(newFloat, rslt); |
|
1248 |
RETURN ( newFloat ); |
|
1249 |
} |
|
1 | 1250 |
} |
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1251 |
%}. |
142 | 1252 |
" |
1253 |
an invalid argument (not convertable to float ?) |
|
1254 |
" |
|
3395
02f47135d80f
pass messageSend as parameter to domainError exception
Claus Gittinger <cg@exept.de>
parents:
3279
diff
changeset
|
1255 |
^ self class |
6195 | 1256 |
raise:#domainErrorSignal |
1257 |
receiver:self |
|
1258 |
selector:#raisedTo: |
|
1259 |
arguments:(Array with:aNumber) |
|
1260 |
errorString:'bad receiver/arg in raisedTo:' |
|
1261 |
||
1262 |
"Modified: / 16.11.2001 / 14:16:51 / cg" |
|
1 | 1263 |
! |
1264 |
||
1265 |
sqrt |
|
6193 | 1266 |
"return the square root of myself. |
1267 |
Raises an exception, if the receiver is less than zero." |
|
1 | 1268 |
|
1269 |
%{ /* NOCONTEXT */ |
|
1270 |
||
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1271 |
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
|
1272 |
OBJ newFloat; |
1 | 1273 |
|
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1274 |
val = __floatVal(self); |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1275 |
|
6193 | 1276 |
#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
|
1277 |
if (val >= 0.0) |
3889
3466554b639f
manually check receiver for beeing >= 0 under WINDOWS
Claus Gittinger <cg@exept.de>
parents:
3632
diff
changeset
|
1278 |
#endif |
3466554b639f
manually check receiver for beeing >= 0 under WINDOWS
Claus Gittinger <cg@exept.de>
parents:
3632
diff
changeset
|
1279 |
{ |
6193 | 1280 |
__threadErrno = 0; |
1281 |
rslt = sqrt(val); |
|
3399
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1282 |
#ifdef LINUX /* and maybe others */ |
6193 | 1283 |
if (! isnan(rslt)) |
3399
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1284 |
#endif |
6193 | 1285 |
{ |
1286 |
if (__threadErrno == 0) { |
|
1287 |
__qMKFLOAT(newFloat, rslt); |
|
1288 |
RETURN ( newFloat ); |
|
1289 |
} |
|
1290 |
} |
|
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1291 |
} |
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1688
diff
changeset
|
1292 |
%}. |
3395
02f47135d80f
pass messageSend as parameter to domainError exception
Claus Gittinger <cg@exept.de>
parents:
3279
diff
changeset
|
1293 |
^ self class |
6193 | 1294 |
raise:#domainErrorSignal |
1295 |
receiver:self |
|
1296 |
selector:#sqrt |
|
6195 | 1297 |
arguments:#() |
6193 | 1298 |
errorString:'bad receiver in sqrt' |
3399
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1299 |
|
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1300 |
" |
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1301 |
10 sqrt |
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1302 |
-10 sqrt |
4f45ebb7bc60
oops - linux does not set errNo on some domainErrors;
Claus Gittinger <cg@exept.de>
parents:
3395
diff
changeset
|
1303 |
" |
6193 | 1304 |
|
6195 | 1305 |
"Modified: / 16.11.2001 / 14:14:43 / cg" |
13 | 1306 |
! ! |
1307 |
||
92 | 1308 |
!Float methodsFor:'printing & storing'! |
1 | 1309 |
|
1310 |
printString |
|
2358 | 1311 |
"return a printed representation of the receiver; |
1312 |
if not specified otherwise (by setting DefaultPrintFormat), |
|
3194
16073834a825
Add comment about #printOn: and #printString
Stefan Vogel <sv@exept.de>
parents:
3163
diff
changeset
|
1313 |
6 valid digits are printed. |
16073834a825
Add comment about #printOn: and #printString
Stefan Vogel <sv@exept.de>
parents:
3163
diff
changeset
|
1314 |
LimitedPrecisonReal and its subclasses use #printString instead of |
16073834a825
Add comment about #printOn: and #printString
Stefan Vogel <sv@exept.de>
parents:
3163
diff
changeset
|
1315 |
#printOn: as basic print mechanism." |
1 | 1316 |
|
1317 |
%{ /* NOCONTEXT */ |
|
1318 |
||
13 | 1319 |
char buffer[64]; |
1 | 1320 |
REGISTER char *cp; |
314 | 1321 |
OBJ s; |
2358 | 1322 |
char *fmt; |
1323 |
char fmtBuffer[20]; |
|
1324 |
||
1325 |
if (__isString(@global(DefaultPrintFormat))) { |
|
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1326 |
fmt = (char *) __stringVal(@global(DefaultPrintFormat)); |
2358 | 1327 |
} else { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1328 |
/* |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1329 |
* in case we get called before #initialize ... |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1330 |
*/ |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1331 |
fmt = ".6"; |
2358 | 1332 |
} |
1333 |
||
1334 |
/* |
|
1335 |
* build a printf format string |
|
1336 |
*/ |
|
1337 |
fmtBuffer[0] = '%'; |
|
1338 |
strncpy(fmtBuffer+1, fmt, 10); |
|
1339 |
#ifdef SYSV |
|
1340 |
strcat(fmtBuffer, "lg"); |
|
1341 |
#else |
|
1342 |
strcat(fmtBuffer, "G"); |
|
1343 |
#endif |
|
314 | 1344 |
|
2358 | 1345 |
sprintf(buffer, fmtBuffer, __floatVal(self)); |
1 | 1346 |
|
1347 |
/* |
|
13 | 1348 |
* kludge to make integral float f prints as "f.0" (not as "f" as printf does) |
1 | 1349 |
* (i.e. look if string contains '.' or 'e' and append '.0' if not) |
1350 |
*/ |
|
1351 |
for (cp = buffer; *cp; cp++) { |
|
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1352 |
if ((*cp == '.') || (*cp == 'E') || (*cp == 'e')) break; |
1 | 1353 |
} |
1354 |
if (! *cp) { |
|
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1355 |
*cp++ = '.'; |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1356 |
*cp++ = '0'; |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1357 |
*cp = '\0'; |
1 | 1358 |
} |
1359 |
||
1133 | 1360 |
s = __MKSTRING(buffer COMMA_SND); |
314 | 1361 |
if (s != nil) { |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1362 |
RETURN (s); |
314 | 1363 |
} |
1364 |
%}. |
|
1365 |
" |
|
1366 |
memory allocation (for the new string) failed. |
|
1367 |
When we arrive here, there was no memory, even after a garbage collect. |
|
1368 |
This means, that the VM wanted to get some more memory from the |
|
1369 |
OS, which was not kind enough to give it. |
|
1370 |
Bad luck - you should increase the swap space on your machine. |
|
1371 |
" |
|
1372 |
^ ObjectMemory allocationFailureSignal raise. |
|
1373 |
||
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1374 |
" |
6189
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1375 |
1.0 printString |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1376 |
1.234 printString |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1377 |
1e10 printString |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1378 |
1.2e3 printString |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1379 |
1.2e30 printString |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1380 |
(1.0 uncheckedDivide:0) printString |
f4bfc2dacdb7
win32: care for some math errors
Claus Gittinger <cg@exept.de>
parents:
6145
diff
changeset
|
1381 |
(0.0 uncheckedDivide:0) printString |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1382 |
" |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1383 |
|
1 | 1384 |
! |
1385 |
||
1386 |
printfPrintString:formatString |
|
1387 |
"non-portable: return a printed representation of the receiver |
|
1388 |
as specified by formatString, which is defined by printf. |
|
31 | 1389 |
If you use this, be aware, that specifying doubles differs on |
1 | 1390 |
systems; on SYSV machines you have to give something like %lf, |
13 | 1391 |
while on BSD systems the format string has to be %F. |
31 | 1392 |
Also, the resulting string may not be longer than 255 bytes - |
54 | 1393 |
since thats the (static) size of the buffer. |
1394 |
This method is NONSTANDARD and may be removed without notice." |
|
1 | 1395 |
|
13 | 1396 |
%{ /* STACK: 400 */ |
1 | 1397 |
char buffer[256]; |
314 | 1398 |
OBJ s; |
1 | 1399 |
|
54 | 1400 |
if (__isString(formatString)) { |
7355 | 1401 |
sprintf(buffer, __stringVal(formatString), __floatVal(self)); |
369 | 1402 |
|
7355 | 1403 |
s = __MKSTRING(buffer COMMA_SND); |
1404 |
if (s != nil) { |
|
1405 |
RETURN (s); |
|
1406 |
} |
|
1 | 1407 |
} |
314 | 1408 |
%}. |
1 | 1409 |
self primitiveFailed |
1410 |
||
7355 | 1411 |
" |
1412 |
Float pi printfPrintString:'%%lg -> %lg' |
|
1413 |
Float pi printfPrintString:'%%lf -> %lf' |
|
1414 |
Float pi printfPrintString:'%%7.5lg -> %7.5lg' |
|
1415 |
Float pi printfPrintString:'%%7.5lf -> %7.5lf' |
|
1416 |
Float pi printfPrintString:'%%G -> %G' |
|
1417 |
Float pi printfPrintString:'%%F -> %F' |
|
1418 |
Float pi printfPrintString:'%%7.5G -> %7.5G' |
|
1419 |
Float pi printfPrintString:'%%7.5F -> %7.5F' |
|
1420 |
" |
|
1 | 1421 |
! ! |
701 | 1422 |
|
7258 | 1423 |
!Float methodsFor:'private-accessing'! |
701 | 1424 |
|
1425 |
basicAt:index |
|
1426 |
"return an internal byte of the float. |
|
1427 |
The value returned here depends on byte order, float representation etc. |
|
1428 |
Therefore, this method should be used strictly private. |
|
1429 |
||
1430 |
Notice: |
|
7217 | 1431 |
the need to redefine this method here is due to the |
1432 |
inability of many machines to store floats in non-double aligned memory. |
|
1433 |
Therefore, on some machines, the first 4 bytes of a float are left unused, |
|
1434 |
and the actual float is stored at index 5 .. 12. |
|
1435 |
To hide this at one place, this method knows about that, and returns |
|
1436 |
values as if this filler wasnt present." |
|
701 | 1437 |
|
1438 |
%{ /* NOCONTEXT */ |
|
1439 |
||
1440 |
register int indx; |
|
1441 |
unsigned char *cp; |
|
1442 |
||
1443 |
/* |
|
1444 |
* notice the missing test for self being a nonNilObject - |
|
1445 |
* this can be done since basicAt: is defined both in UndefinedObject |
|
1446 |
* and SmallInteger |
|
1447 |
*/ |
|
1448 |
if (__isSmallInteger(index)) { |
|
7217 | 1449 |
indx = __intVal(index) - 1; |
1450 |
if (((unsigned)(indx)) < sizeof(double)) { |
|
1451 |
cp = (unsigned char *)(& (__FloatInstPtr(self)->f_floatvalue)); |
|
1452 |
RETURN ( __MKSMALLINT(cp[indx] & 0xFF) ); |
|
1453 |
} |
|
701 | 1454 |
} |
1455 |
%}. |
|
7217 | 1456 |
^ self indexNotIntegerOrOutOfBounds:index |
701 | 1457 |
! |
1458 |
||
1459 |
basicAt:index put:value |
|
1460 |
"set an internal byte of the float. |
|
1461 |
The value to be stored here depends on byte order, float representation etc. |
|
1462 |
Therefore, this method should be used strictly private. |
|
1463 |
||
1464 |
Notice: |
|
7217 | 1465 |
the need to redefine this method here is due to the |
1466 |
inability of many machines to store floats in non-double aligned memory. |
|
1467 |
Therefore, on some machines, the first 4 bytes of a float are left unused, |
|
1468 |
and the actual float is stored at index 5 .. 12. |
|
1469 |
To hide this at one place, this method knows about that, and returns |
|
1470 |
values as if this filler wasnt present." |
|
701 | 1471 |
|
1472 |
%{ /* NOCONTEXT */ |
|
1473 |
register int indx, val; |
|
1474 |
unsigned char *cp; |
|
1475 |
||
1476 |
/* |
|
1477 |
* notice the missing test for self being a nonNilObject - |
|
1478 |
* this can be done since basicAt: is defined both in UndefinedObject |
|
1479 |
* and SmallInteger |
|
1480 |
*/ |
|
1481 |
if (__bothSmallInteger(index, value)) { |
|
7217 | 1482 |
val = __intVal(value); |
1483 |
if ((val & ~0xFF) == 0 /* i.e. (val >= 0) && (val <= 255) */) { |
|
1484 |
indx = __intVal(index) - 1; |
|
1485 |
if (((unsigned)(indx)) < sizeof(double)) { |
|
1486 |
cp = (unsigned char *)(& (__FloatInstPtr(self)->f_floatvalue)); |
|
1487 |
cp[indx] = val; |
|
1488 |
RETURN ( value ); |
|
1489 |
} |
|
1490 |
} |
|
701 | 1491 |
} |
1492 |
%}. |
|
1493 |
value isInteger ifFalse:[ |
|
7217 | 1494 |
" |
1495 |
the object to store should be an integer number |
|
1496 |
" |
|
1497 |
^ self elementNotInteger |
|
701 | 1498 |
]. |
1499 |
(value between:0 and:255) ifFalse:[ |
|
7217 | 1500 |
" |
1501 |
the object to store must be a bytes value |
|
1502 |
" |
|
1503 |
^ self elementBoundsError:value |
|
701 | 1504 |
]. |
7217 | 1505 |
^ self indexNotIntegerOrOutOfBounds:index |
5557 | 1506 |
! ! |
1507 |
||
1508 |
!Float methodsFor:'queries'! |
|
4592 | 1509 |
|
1510 |
basicSize |
|
1511 |
"return the size in bytes of the float. |
|
1512 |
||
1513 |
Notice: |
|
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1514 |
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
|
1515 |
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
|
1516 |
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
|
1517 |
and the actual float is stored at index 5 .. 12. |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1518 |
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
|
1519 |
values as if this filler wasnt present." |
4592 | 1520 |
|
1521 |
%{ /* NOCONTEXT */ |
|
1522 |
||
1523 |
RETURN (__MKSMALLINT(sizeof(double))); |
|
1524 |
%}. |
|
701 | 1525 |
! ! |
1526 |
||
3896 | 1527 |
!Float methodsFor:'special access'! |
1528 |
||
1529 |
exponent |
|
1530 |
"extract a normalized floats exponent. |
|
1531 |
The returned value depends on the float-representation of |
|
1532 |
the underlying machine and is therefore highly unportable. |
|
1533 |
This is not for general use. |
|
1534 |
This assumes that the mantissa is normalized to |
|
1535 |
0.5 .. 1.0 and the floats value is mantissa * 2^exp" |
|
1536 |
||
1537 |
%{ /* NOCONTEXT */ |
|
1538 |
||
1539 |
double frexp(); |
|
1540 |
double frac; |
|
1541 |
INT exp; |
|
1542 |
||
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1543 |
__threadErrno = 0; |
3896 | 1544 |
frac = frexp(__floatVal(self), &exp); |
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1545 |
if (__threadErrno == 0) { |
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
1546 |
RETURN (__MKSMALLINT(exp)); |
3896 | 1547 |
} |
1548 |
%}. |
|
1549 |
^ self primitiveFailed |
|
1550 |
||
1551 |
" |
|
1552 |
1.0 exponent |
|
1553 |
2.0 exponent |
|
1554 |
3.0 exponent |
|
1555 |
4.0 exponent |
|
1556 |
0.5 exponent |
|
1557 |
0.4 exponent |
|
1558 |
0.25 exponent |
|
1559 |
0.00000011111 exponent |
|
1560 |
" |
|
1561 |
! |
|
1562 |
||
1563 |
mantissa |
|
1564 |
"extract a normalized floats mantissa. |
|
1565 |
The returned value depends on the float-representation of |
|
1566 |
the underlying machine and is therefore highly unportable. |
|
1567 |
This is not for general use. |
|
1568 |
This assumes that the mantissa is normalized to |
|
1569 |
0.5 .. 1.0 and the floats value is mantissa * 2^exp" |
|
1570 |
||
1571 |
%{ /* NOCONTEXT */ |
|
1572 |
||
1573 |
double frexp(); |
|
1574 |
double frac; |
|
1575 |
INT exp; |
|
1576 |
||
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1577 |
__threadErrno = 0; |
3896 | 1578 |
frac = frexp(__floatVal(self), &exp); |
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1579 |
if (__threadErrno == 0) { |
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
1580 |
RETURN (__MKFLOAT(frac)); |
3896 | 1581 |
} |
1582 |
%}. |
|
1583 |
^ self primitiveFailed |
|
1584 |
||
1585 |
" |
|
1586 |
1.0 exponent |
|
1587 |
1.0 mantissa |
|
1588 |
||
1589 |
0.25 exponent |
|
1590 |
0.25 mantissa |
|
1591 |
||
1592 |
0.00000011111 exponent |
|
1593 |
0.00000011111 mantissa |
|
1594 |
" |
|
1595 |
! ! |
|
1596 |
||
701 | 1597 |
!Float methodsFor:'testing'! |
1598 |
||
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1599 |
isFinite |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1600 |
"return true, if the receiver is a finite float |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1601 |
i.e. not NaN and not infinite." |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1602 |
|
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1603 |
%{ /* NOCONTEXT */ |
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1604 |
|
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1605 |
double dV = __floatVal(self); |
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1606 |
|
3198
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1607 |
/* |
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1608 |
* notice: on machines which do not provide |
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1609 |
* a finite() macro or function (WIN32), |
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
1610 |
* 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
|
1611 |
*/ |
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1612 |
if (finite(dV)) { |
6344 | 1613 |
RETURN (true); |
3198
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1614 |
} |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1615 |
%}. |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1616 |
^false |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1617 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1618 |
" |
6344 | 1619 |
1.0 isFinite |
1620 |
Float NaN isFinite |
|
1621 |
Float infinity isFinite |
|
1622 |
(0.0 uncheckedDivide: 0.0) isFinite |
|
1623 |
(1.0 uncheckedDivide: 0.0) isFinite |
|
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1624 |
" |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1625 |
! |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1626 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1627 |
isInfinite |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1628 |
"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
|
1629 |
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
|
1630 |
however, inline C-code could produce them ... |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1631 |
Redefined here for speed" |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1632 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1633 |
%{ /* NOCONTEXT */ |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1634 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1635 |
double dV = __floatVal(self); |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1636 |
|
3198
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1637 |
/* |
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1638 |
* notice: on machines which do not provide |
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1639 |
* finite() & isnan() macros or functions (WIN32), |
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
1640 |
* 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
|
1641 |
*/ |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1642 |
#if defined(isinf) || defined(LINUX) |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1643 |
if (isinf(dV)) { RETURN (true); } |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1644 |
#else |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1645 |
if (!finite(dV) && !isnan(dV)) { RETURN (true); } |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1646 |
#endif |
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1647 |
%}. |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1648 |
^ false |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1649 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1650 |
" |
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
1651 |
1.0 isInfinite |
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
1652 |
(0.0 uncheckedDivide: 0.0) isInfinite |
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
1653 |
(1.0 uncheckedDivide: 0.0) isInfinite |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1654 |
" |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1655 |
! |
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1656 |
|
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1657 |
isLiteral |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1658 |
"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
|
1659 |
(i.e. can be used in constant arrays)" |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1660 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1661 |
^ true |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1662 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1663 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1664 |
! |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1665 |
|
2387 | 1666 |
isNaN |
1667 |
"return true, if the receiver is an invalid float (NaN - not a number). |
|
1668 |
These are not created by ST/X float operations (they raise an exception); |
|
1669 |
however, inline C-code could produce them ..." |
|
1670 |
||
1671 |
%{ /* NOCONTEXT */ |
|
1672 |
||
3139 | 1673 |
double dV = (__floatVal(self)); |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1674 |
|
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1675 |
if (isnan(dV)) { RETURN (true); } |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1676 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1677 |
#if 0 /* Currently all our systems support isnan() |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1678 |
* If not, you have to fix librun/jinterpret.c also. |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1679 |
*/ |
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1680 |
|
2395 | 1681 |
/* |
1682 |
* sigh - every vendor is playing its own game here ... |
|
1683 |
* Q: what are standards worth, anyway ? |
|
1684 |
*/ |
|
2392 | 1685 |
#ifdef IS_NAN |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1686 |
if (IS_NAN(dV)) { RETURN (true); } |
3139 | 1687 |
RETURN (false); |
2393 | 1688 |
#endif |
3139 | 1689 |
|
2393 | 1690 |
#ifdef IS_QNAN |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1691 |
if (IS_QNAN(dV)) { RETURN (true); } |
3139 | 1692 |
RETURN (false); |
2393 | 1693 |
#endif |
2392 | 1694 |
|
2393 | 1695 |
#ifdef FLT_SNAN |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1696 |
if (dV == FLT_SNAN) { RETURN (true); } |
3139 | 1697 |
RETURN (false); |
2393 | 1698 |
#endif |
3139 | 1699 |
|
2393 | 1700 |
#ifdef FLT_QNAN |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1701 |
if (dV == FLT_QNAN) { RETURN (true); } |
3139 | 1702 |
RETURN (false); |
2393 | 1703 |
#endif |
1704 |
||
1705 |
#ifdef _SNANF |
|
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1706 |
if (dV == _SNAN) { RETURN (true); } |
3139 | 1707 |
RETURN (false); |
2393 | 1708 |
#endif |
3139 | 1709 |
|
2393 | 1710 |
#ifdef _QNANF |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1711 |
if (dV == _QNAN) { RETURN (true); } |
3139 | 1712 |
RETURN (false); |
2393 | 1713 |
#endif |
2392 | 1714 |
|
2395 | 1715 |
#ifdef IsPosNAN |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1716 |
if IsPosNAN(dV) { RETURN (true); } |
3139 | 1717 |
RETURN (false); |
2395 | 1718 |
#endif |
3139 | 1719 |
|
2395 | 1720 |
#ifdef IsNegNAN |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1721 |
if IsNegNAN(dV) { RETURN (true); } |
3139 | 1722 |
RETURN (false); |
2395 | 1723 |
#endif |
1724 |
||
2393 | 1725 |
#ifdef NAN |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1726 |
if (dV == NAN) { RETURN (true); } |
3139 | 1727 |
RETURN (false); |
2390 | 1728 |
#endif |
3139 | 1729 |
|
2399 | 1730 |
#ifdef NaN |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
1731 |
if (NaN(dV)) { RETURN (true); } |
3139 | 1732 |
RETURN (false); |
2399 | 1733 |
#endif |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1734 |
|
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1735 |
#endif /* 0 */ |
2392 | 1736 |
%}. |
1737 |
^ false |
|
3139 | 1738 |
|
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1739 |
" |
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
1740 |
1.0 isNaN |
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4296
diff
changeset
|
1741 |
(0.0 uncheckedDivide: 0.0) isNaN |
3146
4e46505d1d59
New #finite, fix #isNaN and #isInfinite.
Stefan Vogel <sv@exept.de>
parents:
3139
diff
changeset
|
1742 |
" |
2387 | 1743 |
! |
1744 |
||
6890
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1745 |
isNegativeZero |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1746 |
"many systems have two float.Pnt zeros" |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1747 |
|
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1748 |
%{ |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1749 |
#if defined(i386) && defined(linux) |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1750 |
RETURN ((__ByteArrayInstPtr(self)->ba_element[sizeof(double)-1] == 128) ? true : false ); |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1751 |
#endif |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1752 |
%}. |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1753 |
^ super isNegativeZero |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1754 |
|
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1755 |
" |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1756 |
0.0 isNegativeZero |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1757 |
-0.0 isNegativeZero |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1758 |
" |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1759 |
! |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
1760 |
|
701 | 1761 |
negative |
1762 |
"return true if the receiver is less than zero" |
|
1763 |
||
1764 |
%{ /* NOCONTEXT */ |
|
1765 |
||
1133 | 1766 |
RETURN ( (__floatVal(self) < 0.0) ? true : false ); |
5411 | 1767 |
%}. |
701 | 1768 |
! |
1769 |
||
5357 | 1770 |
numberOfBits |
1771 |
"return the size (in bits) of the real; |
|
1772 |
typically, 64 is returned here, |
|
1773 |
but who knows ..." |
|
1774 |
||
1775 |
%{ /* NOCONTEXT */ |
|
1776 |
||
1777 |
RETURN (__MKSMALLINT (sizeof(double) * 8)); |
|
1778 |
%} |
|
1779 |
||
1780 |
" |
|
1781 |
1.2 numberOfBits |
|
1782 |
1.2 asShortFloat numberOfBits |
|
1783 |
" |
|
1784 |
! |
|
1785 |
||
701 | 1786 |
positive |
1787 |
"return true if the receiver is greater or equal to zero" |
|
1788 |
||
1789 |
%{ /* NOCONTEXT */ |
|
1790 |
||
1133 | 1791 |
RETURN ( (__floatVal(self) >= 0.0) ? true : false ); |
701 | 1792 |
%} |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1793 |
! |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1794 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1795 |
strictlyPositive |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1796 |
"return true if the receiver is greater than zero" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1797 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1798 |
%{ /* NOCONTEXT */ |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1799 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1800 |
RETURN ( (__floatVal(self) > 0.0) ? true : false ); |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
1801 |
%} |
701 | 1802 |
! ! |
1803 |
||
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1804 |
!Float methodsFor:'tracing'! |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1805 |
|
4682 | 1806 |
traceInto:aRequestor level:level from:referrer |
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1807 |
"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
|
1808 |
|
4682 | 1809 |
^ aRequestor traceFloat:self level:level from:referrer |
4655
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1810 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1811 |
|
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1812 |
! ! |
b9405ca0bb4e
added #hasSharedInstances & tracing support
Claus Gittinger <cg@exept.de>
parents:
4615
diff
changeset
|
1813 |
|
7385 | 1814 |
!Float methodsFor:'trigonometric'! |
1815 |
||
1816 |
arcCos |
|
1817 |
"return the arccosine of myself (I am interpreted as radians). |
|
1818 |
Raises an exception, if the receiver is not in -1..1" |
|
1819 |
||
1820 |
%{ /* NOCONTEXT */ |
|
1821 |
||
1822 |
double val, rslt; |
|
1823 |
OBJ newFloat; |
|
1824 |
||
1825 |
val = __floatVal(self); |
|
1826 |
||
1827 |
#ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
|
1828 |
if ((val >= -1.0) && (val <= 1.0)) |
|
1829 |
#endif |
|
1830 |
{ |
|
1831 |
__threadErrno = 0; |
|
1832 |
rslt = acos(val); |
|
1833 |
#ifdef LINUX /* and maybe others */ |
|
1834 |
if (! isnan(rslt)) |
|
1835 |
#endif |
|
1836 |
{ |
|
1837 |
if (__threadErrno == 0) { |
|
1838 |
__qMKFLOAT(newFloat, rslt); |
|
1839 |
RETURN ( newFloat ); |
|
1840 |
} |
|
1841 |
} |
|
1842 |
} |
|
1843 |
%}. |
|
1844 |
^ self class |
|
1845 |
raise:#domainErrorSignal |
|
1846 |
receiver:self |
|
1847 |
selector:#arcCos |
|
1848 |
arguments:#() |
|
1849 |
errorString:'bad receiver in arcCos' |
|
1850 |
||
1851 |
" |
|
1852 |
-10 arcCos |
|
1853 |
1 arcCos |
|
1854 |
" |
|
1855 |
||
1856 |
"Modified: / 16.11.2001 / 14:14:13 / cg" |
|
1857 |
! |
|
1858 |
||
1859 |
arcCosh |
|
1860 |
"return the hyperbolic arccosine of myself (I am interpreted as radians). |
|
1861 |
Raises an exception, if the receiver is not in -1..1" |
|
1862 |
||
1863 |
%{ /* NOCONTEXT */ |
|
1864 |
||
1865 |
double val, rslt; |
|
1866 |
OBJ newFloat; |
|
1867 |
||
1868 |
val = __floatVal(self); |
|
1869 |
||
1870 |
#ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
|
1871 |
if ((val >= -1.0) && (val <= 1.0)) |
|
1872 |
#endif |
|
1873 |
{ |
|
1874 |
__threadErrno = 0; |
|
1875 |
rslt = acosh(val); |
|
1876 |
#ifdef LINUX /* and maybe others */ |
|
1877 |
if (! isnan(rslt)) |
|
1878 |
#endif |
|
1879 |
{ |
|
1880 |
if (__threadErrno == 0) { |
|
1881 |
__qMKFLOAT(newFloat, rslt); |
|
1882 |
RETURN ( newFloat ); |
|
1883 |
} |
|
1884 |
} |
|
1885 |
} |
|
1886 |
%}. |
|
1887 |
^ self class |
|
1888 |
raise:#domainErrorSignal |
|
1889 |
receiver:self |
|
1890 |
selector:#arcCosh |
|
1891 |
arguments:#() |
|
1892 |
errorString:'bad receiver in arcCosh' |
|
1893 |
||
1894 |
" |
|
1895 |
-10.0 arcCosh |
|
1896 |
1.0 arcCosh |
|
1897 |
" |
|
1898 |
||
1899 |
"Modified: / 16.11.2001 / 14:14:13 / cg" |
|
1900 |
! |
|
1901 |
||
1902 |
arcSin |
|
1903 |
"return the arcsine of myself (I am interpreted as radians). |
|
1904 |
Raises an exception, if the receiver is not in -1..1" |
|
1905 |
||
1906 |
%{ /* NOCONTEXT */ |
|
1907 |
||
1908 |
double val, rslt; |
|
1909 |
OBJ newFloat; |
|
1910 |
||
1911 |
val = __floatVal(self); |
|
1912 |
||
1913 |
#ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
|
1914 |
if ((val >= -1.0) && (val <= 1.0)) |
|
1915 |
#endif |
|
1916 |
{ |
|
1917 |
__threadErrno = 0; |
|
1918 |
rslt = asin(val); |
|
1919 |
#ifdef LINUX /* and maybe others */ |
|
1920 |
if (! isnan(rslt)) |
|
1921 |
#endif |
|
1922 |
{ |
|
1923 |
if (__threadErrno == 0) { |
|
1924 |
__qMKFLOAT(newFloat, rslt); |
|
1925 |
RETURN ( newFloat ); |
|
1926 |
} |
|
1927 |
} |
|
1928 |
} |
|
1929 |
%}. |
|
1930 |
^ self class |
|
1931 |
raise:#domainErrorSignal |
|
1932 |
receiver:self |
|
1933 |
selector:#arcSin |
|
1934 |
arguments:#() |
|
1935 |
errorString:'bad receiver in arcSin' |
|
1936 |
||
1937 |
" |
|
1938 |
-10 arcSin |
|
1939 |
1 arcSin |
|
1940 |
" |
|
1941 |
||
1942 |
"Modified: / 16.11.2001 / 14:14:18 / cg" |
|
1943 |
! |
|
1944 |
||
1945 |
arcSinh |
|
1946 |
"return the hyperbolic arcsine of myself (I am interpreted as radians). |
|
1947 |
Raises an exception, if the receiver is not in -1..1" |
|
1948 |
||
1949 |
%{ /* NOCONTEXT */ |
|
1950 |
||
1951 |
double val, rslt; |
|
1952 |
OBJ newFloat; |
|
1953 |
||
1954 |
val = __floatVal(self); |
|
1955 |
||
1956 |
#ifdef WIN32 /* dont know (yet) how to suppress the warnBox opened by win32 */ |
|
1957 |
if ((val >= -1.0) && (val <= 1.0)) |
|
1958 |
#endif |
|
1959 |
{ |
|
1960 |
__threadErrno = 0; |
|
1961 |
rslt = asinh(val); |
|
1962 |
#ifdef LINUX /* and maybe others */ |
|
1963 |
if (! isnan(rslt)) |
|
1964 |
#endif |
|
1965 |
{ |
|
1966 |
if (__threadErrno == 0) { |
|
1967 |
__qMKFLOAT(newFloat, rslt); |
|
1968 |
RETURN ( newFloat ); |
|
1969 |
} |
|
1970 |
} |
|
1971 |
} |
|
1972 |
%}. |
|
1973 |
^ self class |
|
1974 |
raise:#domainErrorSignal |
|
1975 |
receiver:self |
|
1976 |
selector:#arcSinh |
|
1977 |
arguments:#() |
|
1978 |
errorString:'bad receiver in arcSinh' |
|
1979 |
||
1980 |
" |
|
1981 |
-10.0 arcSinh |
|
1982 |
1.0 arcSinh |
|
1983 |
" |
|
1984 |
! |
|
1985 |
||
1986 |
arcTan |
|
1987 |
"return the arctangent of myself as radians" |
|
1988 |
||
1989 |
%{ /* NOCONTEXT */ |
|
1990 |
||
1991 |
double rslt; |
|
1992 |
OBJ newFloat; |
|
1993 |
||
1994 |
__threadErrno = 0; |
|
1995 |
rslt = atan(__floatVal(self)); |
|
1996 |
#ifdef LINUX /* and maybe others */ |
|
1997 |
if (! isnan(rslt)) |
|
1998 |
#endif |
|
1999 |
if (__threadErrno == 0) { |
|
2000 |
__qMKFLOAT(newFloat, rslt); |
|
2001 |
RETURN ( newFloat ); |
|
2002 |
} |
|
2003 |
%}. |
|
2004 |
^ self class |
|
2005 |
raise:#domainErrorSignal |
|
2006 |
receiver:self |
|
2007 |
selector:#arcTan |
|
2008 |
arguments:#() |
|
2009 |
errorString:'bad receiver in arcTan' |
|
2010 |
||
2011 |
"Modified: / 16.11.2001 / 14:14:22 / cg" |
|
2012 |
! |
|
2013 |
||
2014 |
arcTanh |
|
2015 |
"return the hyperbolic arctangent of myself as radians" |
|
2016 |
||
2017 |
%{ /* NOCONTEXT */ |
|
2018 |
||
2019 |
double rslt; |
|
2020 |
OBJ newFloat; |
|
2021 |
||
2022 |
__threadErrno = 0; |
|
2023 |
rslt = atanh(__floatVal(self)); |
|
2024 |
#ifdef LINUX /* and maybe others */ |
|
2025 |
if (! isnan(rslt)) |
|
2026 |
#endif |
|
2027 |
if (__threadErrno == 0) { |
|
2028 |
__qMKFLOAT(newFloat, rslt); |
|
2029 |
RETURN ( newFloat ); |
|
2030 |
} |
|
2031 |
%}. |
|
2032 |
^ self class |
|
2033 |
raise:#domainErrorSignal |
|
2034 |
receiver:self |
|
2035 |
selector:#arcTanh |
|
2036 |
arguments:#() |
|
2037 |
errorString:'bad receiver in arcTanh' |
|
2038 |
! |
|
2039 |
||
2040 |
cos |
|
2041 |
"return the cosine of myself interpreted as radians" |
|
2042 |
||
2043 |
%{ /* NOCONTEXT */ |
|
2044 |
||
2045 |
double rslt; |
|
2046 |
OBJ newFloat; |
|
2047 |
||
2048 |
__threadErrno = 0; |
|
2049 |
rslt = cos(__floatVal(self)); |
|
2050 |
#ifdef LINUX /* and maybe others */ |
|
2051 |
if (! isnan(rslt)) |
|
2052 |
#endif |
|
2053 |
if (__threadErrno == 0) { |
|
2054 |
__qMKFLOAT(newFloat, rslt); |
|
2055 |
RETURN ( newFloat ); |
|
2056 |
} |
|
2057 |
%}. |
|
2058 |
^ self class |
|
2059 |
raise:#domainErrorSignal |
|
2060 |
receiver:self |
|
2061 |
selector:#cos |
|
2062 |
arguments:#() |
|
2063 |
errorString:'bad receiver in cos' |
|
2064 |
||
2065 |
"Modified: / 16.11.2001 / 14:14:26 / cg" |
|
2066 |
! |
|
2067 |
||
2068 |
cosh |
|
2069 |
"return the hyperbolic cosine of myself interpreted as radians" |
|
2070 |
||
2071 |
%{ /* NOCONTEXT */ |
|
2072 |
||
2073 |
double rslt; |
|
2074 |
OBJ newFloat; |
|
2075 |
||
2076 |
__threadErrno = 0; |
|
2077 |
rslt = cosh(__floatVal(self)); |
|
2078 |
#ifdef LINUX /* and maybe others */ |
|
2079 |
if (! isnan(rslt)) |
|
2080 |
#endif |
|
2081 |
if (__threadErrno == 0) { |
|
2082 |
__qMKFLOAT(newFloat, rslt); |
|
2083 |
RETURN ( newFloat ); |
|
2084 |
} |
|
2085 |
%}. |
|
2086 |
^ self class |
|
2087 |
raise:#domainErrorSignal |
|
2088 |
receiver:self |
|
2089 |
selector:#cosh |
|
2090 |
arguments:#() |
|
2091 |
errorString:'bad receiver in cosh' |
|
2092 |
! |
|
2093 |
||
2094 |
sin |
|
2095 |
"return the sine of myself interpreted as radians" |
|
2096 |
||
2097 |
%{ /* NOCONTEXT */ |
|
2098 |
||
2099 |
double rslt; |
|
2100 |
OBJ newFloat; |
|
2101 |
||
2102 |
__threadErrno = 0; |
|
2103 |
rslt = sin(__floatVal(self)); |
|
2104 |
#ifdef LINUX /* and maybe others */ |
|
2105 |
if (! isnan(rslt)) |
|
2106 |
#endif |
|
2107 |
if (__threadErrno == 0) { |
|
2108 |
__qMKFLOAT(newFloat, rslt); |
|
2109 |
RETURN ( newFloat ); |
|
2110 |
} |
|
2111 |
%}. |
|
2112 |
^ self class |
|
2113 |
raise:#domainErrorSignal |
|
2114 |
receiver:self |
|
2115 |
selector:#sin |
|
2116 |
arguments:#() |
|
2117 |
errorString:'bad receiver in sin' |
|
2118 |
||
2119 |
"Modified: / 16.11.2001 / 14:14:37 / cg" |
|
2120 |
! |
|
2121 |
||
2122 |
sinh |
|
2123 |
"return the hyperbolic sine of myself interpreted as radians" |
|
2124 |
||
2125 |
%{ /* NOCONTEXT */ |
|
2126 |
||
2127 |
double rslt; |
|
2128 |
OBJ newFloat; |
|
2129 |
||
2130 |
__threadErrno = 0; |
|
2131 |
rslt = sinh(__floatVal(self)); |
|
2132 |
#ifdef LINUX /* and maybe others */ |
|
2133 |
if (! isnan(rslt)) |
|
2134 |
#endif |
|
2135 |
if (__threadErrno == 0) { |
|
2136 |
__qMKFLOAT(newFloat, rslt); |
|
2137 |
RETURN ( newFloat ); |
|
2138 |
} |
|
2139 |
%}. |
|
2140 |
^ self class |
|
2141 |
raise:#domainErrorSignal |
|
2142 |
receiver:self |
|
2143 |
selector:#sinh |
|
2144 |
arguments:#() |
|
2145 |
errorString:'bad receiver in sinh' |
|
2146 |
! |
|
2147 |
||
2148 |
tan |
|
2149 |
"return the tangent of myself interpreted as radians" |
|
2150 |
||
2151 |
%{ /* NOCONTEXT */ |
|
2152 |
||
2153 |
double rslt; |
|
2154 |
OBJ newFloat; |
|
2155 |
||
2156 |
__threadErrno = 0; |
|
2157 |
rslt = tan(__floatVal(self)); |
|
2158 |
#ifdef LINUX /* and maybe others */ |
|
2159 |
if (! isnan(rslt)) |
|
2160 |
#endif |
|
2161 |
if (__threadErrno == 0) { |
|
2162 |
__qMKFLOAT(newFloat, rslt); |
|
2163 |
RETURN ( newFloat ); |
|
2164 |
} |
|
2165 |
%}. |
|
2166 |
^ self class |
|
2167 |
raise:#domainErrorSignal |
|
2168 |
receiver:self |
|
2169 |
selector:#tan |
|
2170 |
arguments:#() |
|
2171 |
errorString:'bad receiver in tan' |
|
2172 |
||
2173 |
"Modified: / 16.11.2001 / 14:14:49 / cg" |
|
2174 |
! |
|
2175 |
||
2176 |
tanh |
|
2177 |
"return the hyperbolic tangens of myself interpreted as radians" |
|
2178 |
||
2179 |
%{ /* NOCONTEXT */ |
|
2180 |
||
2181 |
double rslt; |
|
2182 |
OBJ newFloat; |
|
2183 |
||
2184 |
__threadErrno = 0; |
|
2185 |
rslt = tanh(__floatVal(self)); |
|
2186 |
#ifdef LINUX /* and maybe others */ |
|
2187 |
if (! isnan(rslt)) |
|
2188 |
#endif |
|
2189 |
if (__threadErrno == 0) { |
|
2190 |
__qMKFLOAT(newFloat, rslt); |
|
2191 |
RETURN ( newFloat ); |
|
2192 |
} |
|
2193 |
%}. |
|
2194 |
^ self class |
|
2195 |
raise:#domainErrorSignal |
|
2196 |
receiver:self |
|
2197 |
selector:#tanh |
|
2198 |
arguments:#() |
|
2199 |
errorString:'bad receiver in tanh' |
|
2200 |
! ! |
|
2201 |
||
5552 | 2202 |
!Float methodsFor:'truncation & rounding'! |
701 | 2203 |
|
2204 |
ceiling |
|
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2205 |
"return the smallest integer which is greater or equal to the receiver." |
701 | 2206 |
|
2207 |
|val| |
|
2208 |
||
2209 |
%{ |
|
2210 |
double dVal; |
|
2211 |
||
7355 | 2212 |
dVal = ceil(__floatVal(self)); |
701 | 2213 |
/* |
2214 |
* ST-80 (and X3J20) returns integer. |
|
2215 |
*/ |
|
2216 |
if ((dVal >= (double)_MIN_INT) && (dVal <= (double)_MAX_INT)) { |
|
7355 | 2217 |
RETURN ( __MKSMALLINT( (INT) dVal ) ); |
701 | 2218 |
} |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2219 |
__qMKFLOAT(val, dVal); |
701 | 2220 |
%}. |
2221 |
^ val asInteger |
|
2222 |
! |
|
2223 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2224 |
ceilingAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2225 |
"return the smallest integer-valued float greater or equal to the receiver. |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2226 |
This is much like #ceiling, but avoids a (possibly expensive) conversion |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2227 |
of the result to an integer. |
7355 | 2228 |
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
|
2229 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2230 |
%{ /* NOCONTEXT */ |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2231 |
double dVal; |
7355 | 2232 |
OBJ v; |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2233 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2234 |
dVal = ceil(__floatVal(self)); |
7355 | 2235 |
__qMKFLOAT(v, dVal); |
2236 |
RETURN (v); |
|
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2237 |
%} |
7355 | 2238 |
" |
2239 |
0.5 ceilingAsFloat |
|
2240 |
-0.5 ceilingAsFloat |
|
2241 |
-1.5 ceilingAsFloat |
|
2242 |
" |
|
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2243 |
! |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2244 |
|
701 | 2245 |
floor |
2246 |
"return the integer nearest the receiver towards negative infinity." |
|
2247 |
||
2248 |
|val| |
|
2249 |
||
2250 |
%{ |
|
2251 |
double dVal; |
|
2252 |
||
7355 | 2253 |
dVal = floor(__floatVal(self)); |
701 | 2254 |
/* |
2255 |
* ST-80 (and X3J20) returns integer. |
|
2256 |
*/ |
|
2257 |
if ((dVal >= (double)_MIN_INT) && (dVal <= (double)_MAX_INT)) { |
|
7355 | 2258 |
RETURN ( __MKSMALLINT( (INT) dVal ) ); |
701 | 2259 |
} |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2260 |
__qMKFLOAT(val, dVal); |
701 | 2261 |
%}. |
2262 |
^ val asInteger |
|
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2263 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2264 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2265 |
0.5 floor |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2266 |
0.5 floorAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2267 |
-0.5 floor |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2268 |
-0.5 floorAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2269 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2270 |
! |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2271 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2272 |
floorAsFloat |
7355 | 2273 |
"return the integer nearest the receiver towards negative infinity as a float. |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2274 |
This is much like #floor, but avoids a (possibly expensive) conversion |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2275 |
of the result to an integer. |
7355 | 2276 |
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
|
2277 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2278 |
%{ /* NOCONTEXT */ |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2279 |
double dVal; |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2280 |
OBJ v; |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2281 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2282 |
dVal = floor(__floatVal(self)); |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2283 |
__qMKFLOAT(v, dVal); |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2284 |
RETURN (v); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2285 |
%} |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2286 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2287 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2288 |
0.5 floor |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2289 |
0.5 floorAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2290 |
-0.5 floor |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2291 |
-0.5 floorAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2292 |
" |
701 | 2293 |
! |
2294 |
||
3896 | 2295 |
fractionPart |
2296 |
"extract the after-decimal fraction part. |
|
7355 | 2297 |
such that (self truncated + self fractionPart) = self" |
3896 | 2298 |
|
2299 |
%{ /* NOCONTEXT */ |
|
2300 |
||
2301 |
double modf(); |
|
2302 |
double frac, trunc; |
|
2303 |
||
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
2304 |
__threadErrno = 0; |
3896 | 2305 |
frac = modf(__floatVal(self), &trunc); |
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
2306 |
if (__threadErrno == 0) { |
7355 | 2307 |
RETURN (__MKFLOAT(frac)); |
3896 | 2308 |
} |
2309 |
%}. |
|
2310 |
^ self primitiveFailed |
|
2311 |
||
2312 |
" |
|
7355 | 2313 |
1.6 fractionPart + 1.6 truncated |
2314 |
-1.6 fractionPart + -1.6 truncated |
|
2315 |
||
3896 | 2316 |
1.0 fractionPart |
2317 |
2.0 fractionPart |
|
2318 |
3.0 fractionPart |
|
2319 |
4.0 fractionPart |
|
2320 |
0.5 fractionPart |
|
2321 |
0.25 fractionPart |
|
2322 |
3.14159 fractionPart |
|
2323 |
12345673.14159 fractionPart |
|
2324 |
123456731231231231.14159 fractionPart |
|
2325 |
||
2326 |
3.14159 fractionPart + 3.14159 truncated |
|
2327 |
||
2328 |
12345673.14159 fractionPart + 12345673.14159 truncated |
|
2329 |
||
2330 |
123456731231231231.14159 fractionPart + 123456731231231231.14159 truncated |
|
2331 |
" |
|
2332 |
! |
|
2333 |
||
701 | 2334 |
rounded |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2335 |
"return the receiver rounded to the nearest integer" |
701 | 2336 |
|
2337 |
|val| |
|
2338 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2339 |
%{ |
701 | 2340 |
double dVal; |
2341 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2342 |
dVal = __floatVal(self); |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2343 |
if (dVal < 0.0) { |
7355 | 2344 |
dVal = ceil(dVal - 0.5); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2345 |
} else { |
7355 | 2346 |
dVal = floor(dVal + 0.5); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2347 |
} |
701 | 2348 |
/* |
2349 |
* ST-80 (and X3J20) returns integer. |
|
2350 |
*/ |
|
2351 |
if ((dVal >= (double)_MIN_INT) && (dVal <= (double)_MAX_INT)) { |
|
7355 | 2352 |
RETURN ( __MKSMALLINT( (INT) dVal ) ); |
701 | 2353 |
} |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2354 |
__qMKFLOAT(val, dVal); |
701 | 2355 |
%}. |
7355 | 2356 |
^ val asInteger |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2357 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2358 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2359 |
0.4 rounded |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2360 |
0.5 rounded |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2361 |
0.6 rounded |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2362 |
-0.4 rounded |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2363 |
-0.5 rounded |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2364 |
-0.6 rounded |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2365 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2366 |
! |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2367 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2368 |
roundedAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2369 |
"return the receiver rounded to the nearest integer as a float. |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2370 |
This is much like #rounded, but avoids a (possibly expensive) conversion |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2371 |
of the result to an integer. |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2372 |
It may be useful, if the result is to be further used in another |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2373 |
float-operation." |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2374 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2375 |
|val| |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2376 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2377 |
%{ /* NOCONTEXT */ |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2378 |
double dVal; |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2379 |
OBJ v; |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2380 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2381 |
dVal = __floatVal(self); |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2382 |
if (dVal < 0.0) { |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2383 |
dVal = ceil(dVal - 0.5); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2384 |
} else { |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2385 |
dVal = floor(dVal + 0.5); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2386 |
} |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2387 |
__qMKFLOAT(v, dVal); |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2388 |
RETURN (v); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2389 |
%} |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2390 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2391 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2392 |
0.5 rounded |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2393 |
-0.5 rounded |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2394 |
0.5 roundedAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2395 |
-0.5 roundedAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2396 |
" |
701 | 2397 |
! |
2398 |
||
2399 |
truncated |
|
2400 |
"return the receiver truncated towards zero as an integer" |
|
2401 |
||
2402 |
|val| |
|
2403 |
||
2404 |
%{ |
|
2405 |
double dVal; |
|
2406 |
||
1133 | 2407 |
dVal = __floatVal(self); |
701 | 2408 |
if (dVal < 0.0) { |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2409 |
dVal = ceil(dVal); |
701 | 2410 |
} else { |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2411 |
dVal = floor(dVal); |
701 | 2412 |
} |
2413 |
||
2414 |
/* |
|
2415 |
* ST-80 (and X3J20) returns integer. |
|
2416 |
*/ |
|
2417 |
if ((dVal >= (double)_MIN_INT) && (dVal <= (double)_MAX_INT)) { |
|
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2418 |
RETURN ( __MKSMALLINT( (INT) dVal ) ); |
701 | 2419 |
} |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2420 |
__qMKFLOAT(val, dVal); |
701 | 2421 |
%}. |
2422 |
^ val asInteger |
|
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2423 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2424 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2425 |
0.5 truncated |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2426 |
-0.5 truncated |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2427 |
0.5 truncatedAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2428 |
-0.5 truncatedAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2429 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2430 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2431 |
! |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2432 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2433 |
truncatedAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2434 |
"return the receiver truncated towards zero as a float. |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2435 |
This is much like #truncated, but avoids a (possibly expensive) conversion |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2436 |
of the result to an integer. |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2437 |
It may be useful, if the result is to be further used in another |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2438 |
float-operation." |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2439 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2440 |
%{ /* NOCONTEXT */ |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2441 |
double dVal; |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2442 |
OBJ v; |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2443 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2444 |
dVal = __floatVal(self); |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2445 |
if (dVal < 0.0) { |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2446 |
dVal = ceil(dVal); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2447 |
} else { |
3127
590c7d2bb4b9
fixes isNAN (on linux); added #isInfinite
Claus Gittinger <cg@exept.de>
parents:
3118
diff
changeset
|
2448 |
dVal = floor(dVal); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2449 |
} |
3163
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2450 |
__qMKFLOAT(v, dVal); |
212a539ee379
added #readFrom: to avoid returning an int.
Claus Gittinger <cg@exept.de>
parents:
3146
diff
changeset
|
2451 |
RETURN (v); |
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2452 |
%} |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2453 |
|
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2454 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2455 |
0.5 truncated |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2456 |
-0.5 truncated |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2457 |
0.5 truncatedAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2458 |
-0.5 truncatedAsFloat |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2459 |
" |
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2460 |
|
701 | 2461 |
! ! |
2462 |
||
1879
26df273349c4
added ceilingAsFloat, floorAsFloat, truncatedAsFloat
Claus Gittinger <cg@exept.de>
parents:
1695
diff
changeset
|
2463 |
!Float class methodsFor:'documentation'! |
701 | 2464 |
|
2465 |
version |
|
7385 | 2466 |
^ '$Header: /cvs/stx/stx/libbasic/Float.st,v 1.137 2003-06-17 09:11:52 cg Exp $' |
701 | 2467 |
! ! |
6890
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6674
diff
changeset
|
2468 |
|
2387 | 2469 |
Float initialize! |