author | Jan Vrany <jan.vrany@fit.cvut.cz> |
Wed, 02 Dec 2009 21:30:55 +0000 | |
branch | jv |
changeset 17735 | 6a5bc05f696a |
parent 17732 | a1892eeca6c0 |
child 17742 | 3fef0ed4c2d5 |
permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1996 by Claus Gittinger |
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All Rights Reserved |
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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 |
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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 |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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"{ Package: 'stx:libbasic' }" |
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||
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LimitedPrecisionReal variableByteSubclass:#ShortFloat |
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instanceVariableNames:'' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Magnitude-Numbers' |
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! |
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!ShortFloat primitiveDefinitions! |
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%{ |
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#include <errno.h> |
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#ifndef __OPTIMIZE__ |
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# define __OPTIMIZE__ |
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#endif |
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#define __USE_ISOC9X 1 |
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#define __USE_ISOC99 1 |
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#include <math.h> |
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/* |
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* on some systems errno is a macro ... check for it here |
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*/ |
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#ifndef errno |
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extern errno; |
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#endif |
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#if defined (_AIX) |
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# include <float.h> |
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#endif |
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#if defined(IRIX) |
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# include <nan.h> |
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#endif |
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#if defined(LINUX) |
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# ifndef NAN |
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# include <bits/nan.h> |
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# endif |
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#endif |
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#if defined(solaris) || defined(sunos) |
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# include <nan.h> |
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#endif |
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#ifdef WIN32 |
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/* |
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* no finite(x) ? |
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* no isnan(x) ? |
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*/ |
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# ifndef isnan |
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# define isnan(x) \ |
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((((unsigned int *)(&x))[0] == 0x00000000) && \ |
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(((unsigned int *)(&x))[1] == 0xFFF80000)) |
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# endif |
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# ifndef isPositiveInfinity |
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# define isPositiveInfinity(x) \ |
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((((unsigned int *)(&x))[0] == 0x00000000) && \ |
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(((unsigned int *)(&x))[1] == 0x7FF00000)) |
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# endif |
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# ifndef isNegativeInfinity |
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# define isPositiveInfinity(x) \ |
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((((unsigned int *)(&x))[0] == 0x00000000) && \ |
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(((unsigned int *)(&x))[1] == 0xFFF00000)) |
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# endif |
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# ifndef isinf |
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# define isinf(x) \ |
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((((unsigned int *)(&x))[0] == 0x00000000) && \ |
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((((unsigned int *)(&x))[1] & 0x7FF00000) == 0x7FF00000)) |
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# endif |
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# ifndef isfinite |
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# define isfinite(x) (!isinf(x) && !isnan(x)) |
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# endif |
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# ifndef isnanf |
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# define isnanf(x) \ |
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(((unsigned int *)(&x))[0] == 0xFFC00000) |
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# endif |
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# ifndef isPositiveInfinityf |
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# define isPositiveInfinityf(x) \ |
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(((unsigned int *)(&x))[0] == 0x7F800000) |
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# endif |
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|
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# ifndef isNegativeInfinityf |
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# define isNegativeInfinityf(x) \ |
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(((unsigned int *)(&x))[0] == 0xFF800000) |
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# endif |
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|
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# ifndef isinff |
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# define isinff(x) \ |
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((((unsigned int *)(&x))[0] & 0x7FFFFFFF) == 0x7F800000) |
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# endif |
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|
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# ifndef isfinitef |
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# define isfinitef(x) (!isinff(x) && !isnanf(x)) |
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# endif |
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# define NO_ASINH |
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# define NO_ACOSH |
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# define NO_ATANH |
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#endif /* WIN32 */ |
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#ifdef solaris |
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# ifndef isfinite |
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# define isfinite(f) finite((double)(f)) |
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# endif |
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#endif |
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#ifdef realIX |
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# ifndef isfinite |
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# define isfinite(x) 1 |
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# endif |
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#endif /* realIX */ |
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#ifndef isfinitef |
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# define isfinitef(x) isfinite(x) |
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#endif |
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#ifndef isnanf |
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# define isnanf(x) isnan(x) |
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#endif |
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%} |
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! ! |
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||
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!ShortFloat class methodsFor:'documentation'! |
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copyright |
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146 |
" |
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147 |
COPYRIGHT (c) 1996 by Claus Gittinger |
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All Rights Reserved |
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|
150 |
This software is furnished under a license and may be used |
|
151 |
only in accordance with the terms of that license and with the |
|
152 |
inclusion of the above copyright notice. This software may not |
|
153 |
be provided or otherwise made available to, or used by, any |
|
154 |
other person. No title to or ownership of the software is |
|
155 |
hereby transferred. |
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" |
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||
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||
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! |
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||
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documentation |
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" |
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ShortFloats represent rational numbers with limited precision. |
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They use the C-compilers 'float' format, which is usually the IEE single float format. |
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In contrast to Floats (which use the C-compilers 64bit 'double' format), |
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ShortFloats give you 32 bit floats. |
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1197 | 168 |
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169 |
Notice, that ST/X Floats are what Doubles are in ST-80 and ShortFloats are |
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ST-80's Floats respectively. |
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This may change in one of the next versions (at least on machines, which |
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provide different float and double types in their C-compiler. |
173 |
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174 |
WARNING: |
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The layout of shortFloat instances is known by the runtime system and the compiler; |
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you may not add instance variables here. |
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Also, subclassing is complicated by the fact, that the VM creates floats/shortFloats, |
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and does some of its float-checks by an identity compare with the ShortFloat-class. |
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(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). |
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This may be changed, to use a flag bit in the class. |
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Mixed mode arithmetic: |
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shortFloat op shortFloat -> shortFloat |
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shortFloat op fix -> shortFloat |
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shortFloat op fraction -> shortFloat |
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shortFloat op integer -> shortFloat |
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shortFloat op longFloat -> longFloat |
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shortFloat op float -> float |
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shortFloat op complex -> complex |
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|
7405 | 192 |
Representation: |
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193 |
32bit single precision IEE floats |
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194 |
23 bit mantissa, |
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8 bit exponent, |
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6 decimal digits (approx) |
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Range and Precision of Storage Formats: see LimitedPrecisionReal >> documentation |
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[author:] |
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201 |
Claus Gittinger |
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203 |
[see also:] |
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Number |
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Float LongFloat Fraction FixedPoint Integer Complex |
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FloatArray DoubleArray |
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" |
208 |
! ! |
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209 |
||
1880 | 210 |
!ShortFloat class methodsFor:'instance creation'! |
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212 |
basicNew |
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213 |
"return a new shortFloat - here we return 0.0 |
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214 |
- shortFloats are usually NOT created this way ... |
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215 |
Its implemented here to allow things like binary store & load |
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216 |
of shortFloats. (but even this support will go away eventually, its not |
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a good idea to store the bits of a float - the reader might have a |
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totally different representation - so floats will eventually be |
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binary stored in a device independent format." |
220 |
||
221 |
%{ /* NOCONTEXT */ |
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222 |
OBJ newFloat; |
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224 |
__qMKSFLOAT(newFloat, 0.0); |
1207 | 225 |
RETURN (newFloat); |
226 |
%} |
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! |
228 |
||
4297 | 229 |
fastFromString:aString at:startIndex |
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230 |
"return the next ShortFloat from the string starting at startIndex. |
4297 | 231 |
No spaces are skipped. |
232 |
||
233 |
This is a specially tuned entry (using a low-level C-call), which |
|
234 |
returns garbage if the argument string is not a valid float number. |
|
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235 |
It has been added to allow higher speed string decomposition into numbers, |
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|
236 |
especially for mass-data." |
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|
237 |
|
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238 |
%{ /* NOCONTEXT */ |
17735 | 239 |
if (__isStringLike(aString) && __isSmallInteger(startIndex)) { |
240 |
char *cp = (char *)(__stringVal(aString)); |
|
241 |
int idx = __intVal(startIndex) - 1; |
|
242 |
double atof(); |
|
243 |
double val; |
|
4297 | 244 |
|
17735 | 245 |
if ((unsigned)idx < __stringSize(aString)) { |
246 |
val = atof(cp + idx); |
|
247 |
RETURN (__MKSFLOAT(val)); |
|
248 |
} |
|
4297 | 249 |
} |
250 |
%}. |
|
251 |
self primitiveFailed. |
|
252 |
||
253 |
" |
|
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|
254 |
ShortFloat fastFromString:'123.45' at:1 |
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|
255 |
ShortFloat fastFromString:'123.45' at:2 |
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|
256 |
ShortFloat fastFromString:'123.45E4' at:1 |
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|
257 |
ShortFloat fastFromString:'hello123.45E4' at:6 |
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|
258 |
ShortFloat fastFromString:'12345' at:1 |
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|
259 |
ShortFloat fastFromString:'12345' at:2 |
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|
260 |
ShortFloat fastFromString:'12345' at:3 |
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|
261 |
ShortFloat fastFromString:'12345' at:4 |
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|
262 |
ShortFloat fastFromString:'12345' at:5 |
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|
263 |
ShortFloat fastFromString:'12345' at:6 |
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|
264 |
ShortFloat fastFromString:'12345' at:0 |
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|
265 |
ShortFloat fastFromString:'hello123.45E4' at:1 |
4297 | 266 |
|
267 |
Time millisecondsToRun:[ |
|
17735 | 268 |
100000 timesRepeat:[ |
269 |
ShortFloat readFrom:'123.45' |
|
270 |
] |
|
4297 | 271 |
] |
272 |
" |
|
273 |
||
274 |
" |
|
275 |
Time millisecondsToRun:[ |
|
17735 | 276 |
100000 timesRepeat:[ |
277 |
ShortFloat fastFromString:'123.45' at:1 |
|
278 |
] |
|
4297 | 279 |
] |
280 |
" |
|
281 |
! |
|
282 |
||
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|
283 |
readFrom:aStringOrStream |
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284 |
"read a shortFloat from a string" |
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|
285 |
|
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|
286 |
|num| |
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|
287 |
|
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288 |
num := super readFrom:aStringOrStream onError:[self error:'conversion error for: ' , self name]. |
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|
289 |
num notNil ifTrue:[ |
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|
290 |
num := num asShortFloat |
4637
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|
291 |
]. |
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|
292 |
^ num |
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|
293 |
|
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294 |
" |
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|
295 |
ShortFloat readFrom:'0.1' |
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|
296 |
ShortFloat readFrom:'0' |
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|
297 |
ShortFloat readFrom:'.123' |
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|
298 |
ShortFloat readFrom:'-.123' |
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|
299 |
ShortFloat readFrom:'1e4' |
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|
300 |
" |
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|
301 |
|
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302 |
"Modified: / 7.1.1998 / 16:17:59 / cg" |
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|
303 |
! |
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|
304 |
|
3158 | 305 |
readFrom:aStringOrStream onError:exceptionBlock |
306 |
"read a shortFloat from a string" |
|
307 |
||
308 |
|num| |
|
309 |
||
310 |
num := super readFrom:aStringOrStream onError:nil. |
|
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|
311 |
num isNil ifTrue:[ |
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|
312 |
^ exceptionBlock value |
3158 | 313 |
]. |
314 |
^ num asShortFloat |
|
315 |
||
316 |
" |
|
317 |
ShortFloat readFrom:'0.1' |
|
318 |
ShortFloat readFrom:'0' |
|
4637
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|
319 |
ShortFloat readFrom:'.123' |
3158 | 320 |
" |
321 |
||
322 |
"Modified: / 7.1.1998 / 16:17:59 / cg" |
|
1207 | 323 |
! ! |
324 |
||
7356 | 325 |
!ShortFloat class methodsFor:'binary storage'! |
326 |
||
327 |
readBinaryIEEESingleFrom:aStream |
|
328 |
"read a float value from the binary stream, aStream, |
|
329 |
interpreting the next bytes as an IEEE formatted 4-byte float" |
|
1197 | 330 |
|
7356 | 331 |
|f| |
1197 | 332 |
|
7356 | 333 |
f := ShortFloat basicNew. |
334 |
self readBinaryIEEESingleFrom:aStream into:f. |
|
335 |
^ f |
|
1197 | 336 |
|
9636 | 337 |
"not part of libboss, as this is also used by others (TIFFReader)" |
338 |
||
339 |
"Created: / 16-04-1996 / 21:00:35 / cg" |
|
340 |
"Modified: / 23-08-2006 / 16:01:47 / cg" |
|
1197 | 341 |
! |
342 |
||
7356 | 343 |
readBinaryIEEESingleFrom:aStream into:aFloat |
344 |
"read a float value from the binary stream, aStream, |
|
345 |
interpreting the next bytes as an IEEE formatted 4-byte float" |
|
346 |
||
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|
347 |
aFloat class == self ifFalse:[self error:'no a ShortFloat']. |
6574 | 348 |
|
7356 | 349 |
" |
350 |
this implementation is wrong: does not work on non-IEEE machines |
|
351 |
(to date all machines where ST/X is running on use |
|
352 |
IEEE float format. Need more here, when porting ST/X to 370's) |
|
353 |
" |
|
354 |
self isIEEEFormat ifFalse:[self error:'unsupported operation']. |
|
355 |
||
356 |
UninterpretedBytes isBigEndian ifFalse:[ |
|
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|
357 |
"swap the bytes" |
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|
358 |
8 to:4 by:-1 do:[:i | |
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|
359 |
aFloat basicAt:i put:(aStream next) |
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|
360 |
]. |
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|
361 |
^ self |
7356 | 362 |
]. |
363 |
1 to:4 do:[:i | |
|
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|
364 |
aFloat basicAt:i put:aStream next |
7356 | 365 |
] |
9636 | 366 |
|
367 |
"not part of libboss, as this is also used by others (TIFFReader)" |
|
368 |
||
369 |
"Modified: / 23-08-2006 / 16:01:52 / cg" |
|
6574 | 370 |
! |
371 |
||
7356 | 372 |
storeBinaryIEEESingle:aFloat on:aStream |
373 |
"store aFloat as an IEEE formatted 4-byte float |
|
374 |
onto the binary stream, aStream" |
|
375 |
||
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|
376 |
|float| |
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|
377 |
|
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|
378 |
float := aFloat asShortFloat. |
7356 | 379 |
|
380 |
" |
|
381 |
this implementation is wrong: does not work on non-IEEE machines |
|
382 |
(to date all machines where ST/X is running on use |
|
383 |
IEEE float format. Need more here, when porting ST/X to 370's) |
|
384 |
" |
|
385 |
self isIEEEFormat ifFalse:[self error:'unsupported operation']. |
|
6574 | 386 |
|
7356 | 387 |
UninterpretedBytes isBigEndian ifFalse:[ |
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|
388 |
"swap the bytes" |
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|
389 |
8 to:4 by:-1 do:[:i | |
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|
390 |
aStream nextPut:(float basicAt:i). |
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|
391 |
]. |
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|
392 |
^ self |
7356 | 393 |
]. |
394 |
1 to:4 do:[:i | |
|
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|
395 |
aStream nextPut:(float basicAt:i). |
7356 | 396 |
] |
9636 | 397 |
|
398 |
"not part of libboss, as this is also used by others (TIFFReader)" |
|
399 |
||
400 |
"Modified: / 23-08-2006 / 16:01:55 / cg" |
|
7356 | 401 |
! ! |
402 |
||
403 |
!ShortFloat class methodsFor:'constants'! |
|
6574 | 404 |
|
7392 | 405 |
e |
406 |
"return the constant e as ShortFloat" |
|
407 |
||
408 |
^ Float e asShortFloat |
|
409 |
! |
|
410 |
||
411 |
pi |
|
412 |
"return the constant pi as ShortFloat" |
|
413 |
||
414 |
^ Float pi asShortFloat |
|
415 |
! |
|
416 |
||
1197 | 417 |
unity |
1260 | 418 |
"return the neutral element for multiplication (1.0) as ShortFloat" |
1197 | 419 |
|
420 |
^ 1.0 asShortFloat |
|
421 |
||
1260 | 422 |
"Modified: 23.4.1996 / 09:26:51 / cg" |
1197 | 423 |
! |
424 |
||
425 |
zero |
|
1260 | 426 |
"return the neutral element for addition (0.0) as ShortFloat" |
1197 | 427 |
|
428 |
^ 0.0 asShortFloat |
|
429 |
||
1260 | 430 |
"Modified: 23.4.1996 / 09:26:45 / cg" |
1197 | 431 |
! ! |
432 |
||
1880 | 433 |
!ShortFloat class methodsFor:'queries'! |
1197 | 434 |
|
6898 | 435 |
exponentCharacter |
436 |
^ $e |
|
437 |
! |
|
438 |
||
1197 | 439 |
isBuiltInClass |
1264 | 440 |
"return true if this class is known by the run-time-system. |
441 |
Here, true is returned for myself, false for subclasses." |
|
1197 | 442 |
|
443 |
^ self == ShortFloat |
|
444 |
||
1264 | 445 |
"Modified: 23.4.1996 / 16:00:23 / cg" |
3427
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added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
446 |
! |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
447 |
|
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
3414
diff
changeset
|
448 |
isIEEEFormat |
ba90490c94b6
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Claus Gittinger <cg@exept.de>
parents:
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changeset
|
449 |
"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:
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diff
changeset
|
450 |
Currently, no support is provided for non-ieee machines |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
451 |
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:
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diff
changeset
|
452 |
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
|
453 |
machine). |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
454 |
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:
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changeset
|
455 |
(among others). Today, most systems use IEEE format floats." |
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
456 |
|
ba90490c94b6
added query for IEE format (for future use)
Claus Gittinger <cg@exept.de>
parents:
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diff
changeset
|
457 |
^ true "/ this may be a lie |
7356 | 458 |
! |
459 |
||
460 |
numBitsInExponent |
|
461 |
"answer the number of bits in the exponent |
|
462 |
This is an IEEE float, where 8 bits are available: |
|
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|
463 |
seeeeeee emmmmmmm mmmmmmmm mmmmmmmm |
7356 | 464 |
" |
465 |
||
466 |
^ 8 |
|
467 |
! |
|
468 |
||
469 |
numBitsInMantissa |
|
470 |
"answer the number of bits in the mantissa. |
|
471 |
This is an IEEE float, where 23 bits (the hidden one is not counted here) are available: |
|
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|
472 |
seeeeeee emmmmmmm mmmmmmmm mmmmmmmm |
7356 | 473 |
" |
474 |
||
475 |
^ 23 |
|
476 |
! |
|
477 |
||
478 |
precision |
|
479 |
"answer the precision of a ShortFloat (in bits) |
|
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|
480 |
This is an IEEE float, where only the fraction from the normalized mantissa is stored |
9149 | 481 |
and so there is a hidden bit and the mantissa is actually represented by 24 binary digits |
482 |
(although only 23 are needed in the binary representation)" |
|
7356 | 483 |
|
484 |
^ 24 |
|
485 |
! |
|
486 |
||
487 |
radix |
|
488 |
"answer the radix of a ShortFloats exponent |
|
489 |
This is an IEEE float, which is represented as binary" |
|
490 |
||
9149 | 491 |
^ 2 "must be careful here, whenever ST/X is used on a VAX or a 370" |
1197 | 492 |
! ! |
493 |
||
494 |
!ShortFloat methodsFor:'arithmetic'! |
|
495 |
||
496 |
* aNumber |
|
11730 | 497 |
"return the product of the receiver and the argument." |
1197 | 498 |
|
499 |
%{ /* NOCONTEXT */ |
|
500 |
||
501 |
OBJ newFloat; |
|
502 |
float result; |
|
503 |
double dResult; |
|
504 |
||
505 |
if (__isSmallInteger(aNumber)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
506 |
result = __shortFloatVal(self) * (float)(__intVal(aNumber)); |
1197 | 507 |
retResult: |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
508 |
__qMKSFLOAT(newFloat, result); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
509 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
510 |
} |
7356 | 511 |
if (__isShortFloat(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
512 |
result = __shortFloatVal(self) * __shortFloatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
513 |
goto retResult; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
514 |
} |
7356 | 515 |
if (__isFloatLike(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
516 |
dResult = (double) __shortFloatVal(self)* __floatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
517 |
__qMKFLOAT(newFloat, dResult); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
518 |
RETURN ( newFloat ); |
1197 | 519 |
} |
520 |
%}. |
|
521 |
^ aNumber productFromShortFloat:self |
|
522 |
! |
|
523 |
||
524 |
+ aNumber |
|
525 |
"return the sum of the receiver and the argument, aNumber" |
|
526 |
||
527 |
%{ /* NOCONTEXT */ |
|
528 |
||
529 |
OBJ newFloat; |
|
530 |
float result; |
|
531 |
double dResult; |
|
532 |
||
533 |
if (__isSmallInteger(aNumber)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
534 |
result = __shortFloatVal(self) + (float)(__intVal(aNumber)); |
1197 | 535 |
retResult: |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
536 |
__qMKSFLOAT(newFloat, result); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
537 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
538 |
} |
7356 | 539 |
if (__isShortFloat(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
540 |
result = __shortFloatVal(self) + __shortFloatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
541 |
goto retResult; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
542 |
} |
7356 | 543 |
if (__isFloatLike(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
544 |
dResult = (double) __shortFloatVal(self) + __floatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
545 |
__qMKFLOAT(newFloat, dResult); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
546 |
RETURN ( newFloat ); |
1197 | 547 |
} |
548 |
%}. |
|
549 |
^ aNumber sumFromShortFloat:self |
|
550 |
! |
|
551 |
||
552 |
- aNumber |
|
553 |
"return the difference of the receiver and the argument, aNumber" |
|
554 |
||
555 |
%{ /* NOCONTEXT */ |
|
556 |
||
557 |
OBJ newFloat; |
|
558 |
float result; |
|
559 |
double dResult; |
|
560 |
||
561 |
if (__isSmallInteger(aNumber)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
562 |
result = __shortFloatVal(self) - (float)(__intVal(aNumber)); |
1197 | 563 |
retResult: |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
564 |
__qMKSFLOAT(newFloat, result); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
565 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
566 |
} |
7356 | 567 |
if (__isShortFloat(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
568 |
result = __shortFloatVal(self) - __shortFloatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
569 |
goto retResult; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
570 |
} |
7356 | 571 |
if (__isFloatLike(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
572 |
dResult = (double) __shortFloatVal(self) - __floatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
573 |
__qMKFLOAT(newFloat, dResult); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
574 |
RETURN ( newFloat ); |
1197 | 575 |
} |
576 |
%}. |
|
577 |
^ aNumber differenceFromShortFloat:self |
|
578 |
! |
|
579 |
||
580 |
/ aNumber |
|
581 |
"return the quotient of the receiver and the argument, aNumber" |
|
582 |
||
583 |
%{ /* NOCONTEXT */ |
|
584 |
||
585 |
OBJ newFloat; |
|
586 |
float result, val; |
|
587 |
double dResult, dVal; |
|
588 |
||
589 |
if (__isSmallInteger(aNumber)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
590 |
if (aNumber != __mkSmallInteger(0)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
591 |
result = __shortFloatVal(self) / (float)(__intVal(aNumber)); |
1197 | 592 |
retResult: |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
593 |
__qMKSFLOAT(newFloat, result); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
594 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
595 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
596 |
} |
7356 | 597 |
if (__isShortFloat(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
598 |
val = __shortFloatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
599 |
if (val != 0.0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
600 |
result = __shortFloatVal(self) / val; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
601 |
goto retResult; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
602 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
603 |
} |
7356 | 604 |
if (__isFloatLike(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
605 |
dVal = __floatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
606 |
if (dVal != 0.0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
607 |
dResult = (double) __shortFloatVal(self) / dVal; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
608 |
__qMKFLOAT(newFloat, dResult); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
609 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
610 |
} |
1197 | 611 |
} |
612 |
%}. |
|
613 |
((aNumber == 0) or:[aNumber = 0.0]) ifTrue:[ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
614 |
" |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
615 |
No, you shalt not divide by zero |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
616 |
" |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
617 |
^ ZeroDivide raiseRequestWith:thisContext. |
1197 | 618 |
]. |
4166
5730ad6b744b
oops - from coercion in quotient / uncheckedQuotient
Claus Gittinger <cg@exept.de>
parents:
4100
diff
changeset
|
619 |
^ aNumber quotientFromShortFloat:self |
1197 | 620 |
! |
621 |
||
7725 | 622 |
abs |
623 |
"return the absolute value of the receiver |
|
624 |
reimplemented here for speed" |
|
625 |
||
626 |
%{ /* NOCONTEXT */ |
|
627 |
||
628 |
OBJ newFloat; |
|
629 |
float val = __shortFloatVal(self); |
|
630 |
||
631 |
if (val < 0.0) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
632 |
__qMKSFLOAT(newFloat, -val); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
633 |
RETURN ( newFloat ); |
7725 | 634 |
} |
635 |
RETURN (self); |
|
636 |
%}. |
|
637 |
||
638 |
" |
|
639 |
3.0 asShortFloat abs |
|
640 |
-3.0 asShortFloat abs |
|
641 |
" |
|
642 |
! |
|
643 |
||
1197 | 644 |
negated |
645 |
"return myself negated" |
|
646 |
||
647 |
%{ /* NOCONTEXT */ |
|
648 |
OBJ newFloat; |
|
649 |
float rslt = - __shortFloatVal(self); |
|
650 |
||
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1670
diff
changeset
|
651 |
__qMKSFLOAT(newFloat, rslt); |
1197 | 652 |
RETURN ( newFloat ); |
5411 | 653 |
%}. |
654 |
^ 0.0 - self |
|
1197 | 655 |
|
3147 | 656 |
! |
657 |
||
658 |
uncheckedDivide:aNumber |
|
7356 | 659 |
"return the quotient of the receiver and the argument, aNumber. |
7471 | 660 |
Do not check for divide by zero (return NaN or Infinity). |
7356 | 661 |
This operation is provided for emulators of other languages/semantics, |
662 |
where no exception is raised for these results (i.e. Java). |
|
663 |
Its only defined if the arguments type is the same as the receivers." |
|
3147 | 664 |
|
665 |
%{ /* NOCONTEXT */ |
|
666 |
||
667 |
OBJ newFloat; |
|
668 |
float result, val; |
|
669 |
double dResult, dVal; |
|
670 |
||
671 |
if (__isSmallInteger(aNumber)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
672 |
result = __shortFloatVal(self) / (float)(__intVal(aNumber)); |
3147 | 673 |
retResult: |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
674 |
__qMKSFLOAT(newFloat, result); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
675 |
RETURN ( newFloat ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
676 |
} |
7356 | 677 |
if (__isShortFloat(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
678 |
val = __shortFloatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
679 |
result = __shortFloatVal(self) / val; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
680 |
goto retResult; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
681 |
} |
7356 | 682 |
if (__isFloatLike(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
683 |
dVal = __floatVal(aNumber); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
684 |
dResult = (double) __shortFloatVal(self) / dVal; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
685 |
__qMKFLOAT(newFloat, dResult); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
686 |
RETURN ( newFloat ); |
3147 | 687 |
} |
688 |
%}. |
|
4166
5730ad6b744b
oops - from coercion in quotient / uncheckedQuotient
Claus Gittinger <cg@exept.de>
parents:
4100
diff
changeset
|
689 |
^ aNumber quotientFromShortFloat:self |
3147 | 690 |
|
691 |
" |
|
692 |
0.0 asShortFloat uncheckedDivide:0 |
|
693 |
1.0 asShortFloat uncheckedDivide:0.0 |
|
694 |
" |
|
1197 | 695 |
! ! |
696 |
||
5257 | 697 |
!ShortFloat methodsFor:'coercing & converting'! |
1197 | 698 |
|
699 |
asFloat |
|
11238 | 700 |
"return a Float with same value as the receiver. |
701 |
Redefined for performance (machine can do it faster)" |
|
1197 | 702 |
|
703 |
%{ /* NOCONTEXT */ |
|
704 |
||
705 |
OBJ newFloat; |
|
706 |
double dVal = (double)__shortFloatVal(self); |
|
707 |
||
1695
465e1eba8e8e
removed useless context-arg of all qMK macros - needs full recompile.
Claus Gittinger <cg@exept.de>
parents:
1670
diff
changeset
|
708 |
__qMKFLOAT(newFloat, dVal); |
1197 | 709 |
RETURN ( newFloat ); |
710 |
%} |
|
711 |
||
712 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
713 |
1.0 asShortFloat asFloat |
1197 | 714 |
" |
715 |
! |
|
716 |
||
717 |
asInteger |
|
718 |
"return an integer with same value - might truncate" |
|
719 |
||
720 |
%{ /* NOCONTEXT */ |
|
1670 | 721 |
float fVal; |
1197 | 722 |
|
1670 | 723 |
fVal = __shortFloatVal(self); |
7419 | 724 |
#ifdef WIN32 |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
725 |
if (! isnanf(fVal)) |
7419 | 726 |
#endif |
727 |
{ |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
728 |
if ((fVal >= (float)_MIN_INT) && (fVal <= (float)_MAX_INT)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
729 |
RETURN ( __mkSmallInteger( (INT)fVal) ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
730 |
} |
1197 | 731 |
} |
732 |
%}. |
|
733 |
^ super asInteger |
|
734 |
||
735 |
" |
|
736 |
12345.0 asShortFloat asInteger |
|
737 |
1e15 asShortFloat asInteger |
|
738 |
" |
|
739 |
! |
|
740 |
||
7437
834ea4d6cdbc
oops - printString of NaN/INF where wrong;
Claus Gittinger <cg@exept.de>
parents:
7419
diff
changeset
|
741 |
asLongFloat |
834ea4d6cdbc
oops - printString of NaN/INF where wrong;
Claus Gittinger <cg@exept.de>
parents:
7419
diff
changeset
|
742 |
^ LongFloat fromShortFloat:self |
834ea4d6cdbc
oops - printString of NaN/INF where wrong;
Claus Gittinger <cg@exept.de>
parents:
7419
diff
changeset
|
743 |
! |
834ea4d6cdbc
oops - printString of NaN/INF where wrong;
Claus Gittinger <cg@exept.de>
parents:
7419
diff
changeset
|
744 |
|
1197 | 745 |
asShortFloat |
746 |
"return a ShortFloat with same value as the receiver - thats me" |
|
747 |
||
748 |
^ self |
|
1200 | 749 |
! |
750 |
||
7356 | 751 |
coerce:aNumber |
11720 | 752 |
"convert the argument aNumber into an instance of the receivers class and return it." |
7356 | 753 |
|
754 |
^ aNumber asShortFloat |
|
755 |
! |
|
756 |
||
1200 | 757 |
generality |
758 |
"return the generality value - see ArithmeticValue>>retry:coercing:" |
|
759 |
||
760 |
^ 70 |
|
761 |
||
762 |
||
1197 | 763 |
! ! |
764 |
||
765 |
!ShortFloat methodsFor:'comparing'! |
|
766 |
||
767 |
< aNumber |
|
768 |
"return true, if the argument is greater" |
|
769 |
||
770 |
%{ /* NOCONTEXT */ |
|
771 |
||
772 |
if (__isSmallInteger(aNumber)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
773 |
RETURN ( (__shortFloatVal(self) < (float)(__intVal(aNumber))) ? true : false ); |
1197 | 774 |
} |
7356 | 775 |
if (aNumber != nil) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
776 |
if (__qIsFloatLike(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
777 |
RETURN ( (double)(__shortFloatVal(self) < __floatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
778 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
779 |
if (__qIsShortFloat(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
780 |
RETURN ( (__shortFloatVal(self) < __shortFloatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
781 |
} |
1197 | 782 |
} |
783 |
%}. |
|
784 |
^ aNumber lessFromShortFloat:self |
|
785 |
||
1200 | 786 |
" |
787 |
1.0 asShortFloat > (1/3) |
|
788 |
" |
|
1197 | 789 |
! |
790 |
||
791 |
<= aNumber |
|
792 |
"return true, if the argument is greater or equal" |
|
793 |
||
794 |
%{ /* NOCONTEXT */ |
|
795 |
||
796 |
if (__isSmallInteger(aNumber)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
797 |
RETURN ( (__shortFloatVal(self) <= (float)(__intVal(aNumber))) ? true : false ); |
1197 | 798 |
} |
7356 | 799 |
if (aNumber != nil) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
800 |
if (__qIsFloatLike(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
801 |
RETURN ( (double)(__shortFloatVal(self) <= __floatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
802 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
803 |
if (__qIsShortFloat(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
804 |
RETURN ( (__shortFloatVal(self) <= __shortFloatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
805 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
806 |
} |
1197 | 807 |
%}. |
808 |
^ self retry:#<= coercing:aNumber |
|
809 |
! |
|
810 |
||
811 |
= aNumber |
|
7356 | 812 |
"return true, if the argument represents the same numeric value |
813 |
as the receiver, false otherwise" |
|
1197 | 814 |
|
815 |
%{ /* NOCONTEXT */ |
|
816 |
||
817 |
if (__isSmallInteger(aNumber)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
818 |
RETURN ( (__shortFloatVal(self) == (float)(__intVal(aNumber))) ? true : false ); |
7356 | 819 |
} |
820 |
if (aNumber == nil) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
821 |
RETURN (false); |
1197 | 822 |
} |
7356 | 823 |
if (__qIsFloatLike(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
824 |
RETURN ( (double)(__shortFloatVal(self) == __floatVal(aNumber)) ? true : false ); |
1197 | 825 |
} |
7356 | 826 |
if (__qIsShortFloat(aNumber)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
827 |
RETURN ( (__shortFloatVal(self) == __shortFloatVal(aNumber)) ? true : false ); |
1197 | 828 |
} |
829 |
%}. |
|
7356 | 830 |
^ aNumber equalFromShortFloat:self |
1197 | 831 |
! |
832 |
||
833 |
> aNumber |
|
834 |
"return true, if the argument is less" |
|
835 |
||
836 |
%{ /* NOCONTEXT */ |
|
837 |
||
838 |
if (__isSmallInteger(aNumber)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
839 |
RETURN ( (__shortFloatVal(self) > (float)(__intVal(aNumber))) ? true : false ); |
1197 | 840 |
} |
7356 | 841 |
if (aNumber != nil) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
842 |
if (__qIsFloatLike(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
843 |
RETURN ( (double)(__shortFloatVal(self) > __floatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
844 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
845 |
if (__qIsShortFloat(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
846 |
RETURN ( (__shortFloatVal(self) > __shortFloatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
847 |
} |
1197 | 848 |
} |
849 |
%}. |
|
850 |
^ self retry:#> coercing:aNumber |
|
851 |
! |
|
852 |
||
853 |
>= aNumber |
|
854 |
"return true, if the argument is less or equal" |
|
855 |
||
856 |
%{ /* NOCONTEXT */ |
|
857 |
||
858 |
if (__isSmallInteger(aNumber)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
859 |
RETURN ( (__shortFloatVal(self) >= (float)(__intVal(aNumber))) ? true : false ); |
1197 | 860 |
} |
7356 | 861 |
if (aNumber != nil) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
862 |
if (__qIsFloatLike(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
863 |
RETURN ( (double)(__shortFloatVal(self) >= __floatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
864 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
865 |
if (__qIsShortFloat(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
866 |
RETURN ( (__shortFloatVal(self) >= __shortFloatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
867 |
} |
1197 | 868 |
} |
869 |
%}. |
|
870 |
^ self retry:#>= coercing:aNumber |
|
871 |
! |
|
872 |
||
873 |
hash |
|
874 |
"return a number for hashing; redefined, since floats compare |
|
875 |
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
|
876 |
as 3 hash." |
1197 | 877 |
|
878 |
|i| |
|
879 |
||
880 |
(self >= SmallInteger minVal and:[self <= SmallInteger maxVal]) ifTrue:[ |
|
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
881 |
i := self asInteger. |
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
882 |
self = i ifTrue:[ |
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
883 |
^ i hash |
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
884 |
]. |
1197 | 885 |
]. |
886 |
||
4594
eb09f567a3bc
float, shortFloat and fraction all hash alike
Claus Gittinger <cg@exept.de>
parents:
4593
diff
changeset
|
887 |
^ self asFloat hash |
1197 | 888 |
|
889 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
890 |
1.2345 hash |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
891 |
1.2345 asShortFloat hash |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
892 |
1.0 hash |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
893 |
1.0 asShortFloat hash |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
894 |
0.5 asShortFloat hash |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
895 |
0.25 asShortFloat hash |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
896 |
0.5 hash |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
897 |
0.25 hash |
1197 | 898 |
" |
899 |
! |
|
900 |
||
901 |
~= aNumber |
|
902 |
"return true, if the arguments value are not equal" |
|
903 |
||
904 |
%{ /* NOCONTEXT */ |
|
905 |
||
7356 | 906 |
if (aNumber != nil) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
907 |
if (__isSmallInteger(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
908 |
RETURN ( (__shortFloatVal(self) != (float)(__intVal(aNumber))) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
909 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
910 |
if (__qIsFloatLike(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
911 |
RETURN ( (double)(__shortFloatVal(self) != __floatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
912 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
913 |
if (__qIsShortFloat(aNumber)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
914 |
RETURN ( (__shortFloatVal(self) != __shortFloatVal(aNumber)) ? true : false ); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
915 |
} |
7356 | 916 |
} else { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
917 |
RETURN ( true ); |
1197 | 918 |
} |
919 |
%}. |
|
7356 | 920 |
^ super ~= aNumber |
1197 | 921 |
! ! |
922 |
||
923 |
!ShortFloat methodsFor:'printing & storing'! |
|
924 |
||
925 |
printString |
|
3194
16073834a825
Add comment about #printOn: and #printString
Stefan Vogel <sv@exept.de>
parents:
3158
diff
changeset
|
926 |
"return a printed representation of the receiver |
16073834a825
Add comment about #printOn: and #printString
Stefan Vogel <sv@exept.de>
parents:
3158
diff
changeset
|
927 |
LimitedPrecisonReal and its subclasses use #printString instead of |
16073834a825
Add comment about #printOn: and #printString
Stefan Vogel <sv@exept.de>
parents:
3158
diff
changeset
|
928 |
#printOn: as basic print mechanism." |
1197 | 929 |
|
930 |
%{ /* NOCONTEXT */ |
|
931 |
||
932 |
char buffer[64]; |
|
933 |
REGISTER char *cp; |
|
8418
37ccc74bbf9e
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
7746
diff
changeset
|
934 |
int len; |
1197 | 935 |
OBJ s; |
936 |
||
937 |
/* |
|
938 |
* actually only needed on sparc: since thisContext is |
|
939 |
* in a global register, which gets destroyed by printf, |
|
940 |
* manually save it here - very stupid ... |
|
941 |
*/ |
|
942 |
__BEGIN_PROTECT_REGISTERS__ |
|
943 |
||
944 |
#ifdef SYSV |
|
8418
37ccc74bbf9e
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
7746
diff
changeset
|
945 |
len = snprintf(buffer, sizeof(buffer), "%.6lg", (double)__shortFloatVal(self)); |
1197 | 946 |
#else |
8418
37ccc74bbf9e
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
7746
diff
changeset
|
947 |
len = snprintf(buffer, sizeof(buffer), "%.6G", (double)__shortFloatVal(self)); |
1197 | 948 |
#endif |
949 |
||
950 |
__END_PROTECT_REGISTERS__ |
|
951 |
||
8418
37ccc74bbf9e
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
7746
diff
changeset
|
952 |
if (len >= 0 && len <= sizeof(buffer)-3) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
953 |
/* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
954 |
* kludge to make integral float f prints as "f.0" (not as "f" as printf does) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
955 |
* (i.e. look if string contains '.' or 'e' and append '.0' if not) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
956 |
*/ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
957 |
for (cp = buffer; *cp; cp++) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
958 |
if ((*cp == '.') || (*cp == 'E') || (*cp == 'e')) break; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
959 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
960 |
if (!*cp && (cp[-1] >= '0') && (cp[-1] <= '9')) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
961 |
if (__isCharacter(@global(DecimalPointCharacterForPrinting))) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
962 |
*cp++ = __intVal(__characterVal(@global(DecimalPointCharacterForPrinting))); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
963 |
} else { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
964 |
*cp++ = '.'; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
965 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
966 |
*cp++ = '0'; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
967 |
*cp = '\0'; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
968 |
} else { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
969 |
if (cp && (*cp == '.')) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
970 |
if (__isCharacter(@global(DecimalPointCharacterForPrinting))) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
971 |
*cp = __intVal(__characterVal(@global(DecimalPointCharacterForPrinting))); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
972 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
973 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
974 |
} |
1197 | 975 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
976 |
s = __MKSTRING(buffer); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
977 |
if (s != nil) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
978 |
RETURN (s); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
979 |
} |
1197 | 980 |
} |
981 |
%}. |
|
5432 | 982 |
^ self asFloat printString |
8418
37ccc74bbf9e
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
7746
diff
changeset
|
983 |
|
37ccc74bbf9e
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
7746
diff
changeset
|
984 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
985 |
1.234 asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
986 |
1.0 asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
987 |
1e10 asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
988 |
1.2e3 asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
989 |
1.2e30 asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
990 |
(1.0 uncheckedDivide:0) asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
991 |
(0.0 uncheckedDivide:0) asShortFloat printString. |
9121
561e28aa22f9
fixed: isNaN and isFinite (for WIN32)
Claus Gittinger <cg@exept.de>
parents:
8984
diff
changeset
|
992 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
993 |
DecimalPointCharacterForPrinting := $,. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
994 |
1.234 asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
995 |
1.0 asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
996 |
1e10 asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
997 |
1.2e3 asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
998 |
1.2e30 asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
999 |
(1.0 uncheckedDivide:0) asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1000 |
(0.0 uncheckedDivide:0) asShortFloat printString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1001 |
DecimalPointCharacterForPrinting := $. |
8418
37ccc74bbf9e
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
7746
diff
changeset
|
1002 |
" |
5718 | 1003 |
! |
1004 |
||
1005 |
printfPrintString:formatString |
|
7746 | 1006 |
"non-standard: return a printed representation of the receiver |
5718 | 1007 |
as specified by formatString, which is defined by printf. |
1008 |
If you use this, be aware, that specifying doubles differs on |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1009 |
systems; on SYSV machines you have to give something like %lf, |
5718 | 1010 |
while on BSD systems the format string has to be %F. |
1011 |
Also, the resulting string may not be longer than 255 bytes - |
|
1012 |
since thats the (static) size of the buffer. |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1013 |
This method is NONSTANDARD and may be removed without notice. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1014 |
WARNNG: this goes directly to the C-printf function and may therefore me inherently unsafe. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1015 |
Please use the printf: method, which is safe as it is completely implemented in Smalltalk." |
5718 | 1016 |
|
1017 |
%{ /* STACK: 400 */ |
|
1018 |
char buffer[256]; |
|
1019 |
OBJ s; |
|
8418
37ccc74bbf9e
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
7746
diff
changeset
|
1020 |
int len; |
5718 | 1021 |
|
17735 | 1022 |
if (__isStringLike(formatString)) { |
1023 |
/* |
|
1024 |
* actually only needed on sparc: since thisContext is |
|
1025 |
* in a global register, which gets destroyed by printf, |
|
1026 |
* manually save it here - very stupid ... |
|
1027 |
*/ |
|
1028 |
__BEGIN_PROTECT_REGISTERS__ |
|
5718 | 1029 |
|
17735 | 1030 |
len = snprintf(buffer, sizeof(buffer), __stringVal(formatString), __shortFloatVal(self)); |
8418
37ccc74bbf9e
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
7746
diff
changeset
|
1031 |
|
17735 | 1032 |
__END_PROTECT_REGISTERS__ |
8418
37ccc74bbf9e
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
7746
diff
changeset
|
1033 |
|
17735 | 1034 |
if (len < 0) goto fail; |
8418
37ccc74bbf9e
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
7746
diff
changeset
|
1035 |
|
17735 | 1036 |
s = __MKSTRING_L(buffer, len); |
1037 |
if (s != nil) { |
|
1038 |
RETURN (s); |
|
1039 |
} |
|
5718 | 1040 |
} |
8418
37ccc74bbf9e
Security: use snprintf() instead of sprintf() to avoid overwrites.
Stefan Vogel <sv@exept.de>
parents:
7746
diff
changeset
|
1041 |
fail: ; |
5718 | 1042 |
%}. |
1043 |
self primitiveFailed |
|
1044 |
||
1045 |
"ShortFloat pi printfPrintString:'%%lg -> %lg'" |
|
1046 |
"ShortFloat pi printfPrintString:'%%lf -> %lf'" |
|
1047 |
"ShortFloat pi printfPrintString:'%%7.5lg -> %7.5lg'" |
|
1048 |
"ShortFloat pi printfPrintString:'%%G -> %G'" |
|
1049 |
"ShortFloat pi printfPrintString:'%%F -> %F'" |
|
1050 |
"ShortFloat pi printfPrintString:'%%7.5G -> %7.5G'" |
|
1051 |
"ShortFloat pi printfPrintString:'%%7.5F -> %7.5F'" |
|
8422
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1052 |
! |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1053 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1054 |
storeString |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1055 |
"return a printed representation of the receiver; |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1056 |
all valid digits are printed. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1057 |
LimitedPrecisonReal and its subclasses use #storeString instead of |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1058 |
#storeOn: as basic print mechanism." |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1059 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1060 |
%{ /* NOCONTEXT */ |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1061 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1062 |
char buffer[64]; |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1063 |
REGISTER char *cp; |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1064 |
OBJ s; |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1065 |
int len; |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1066 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1067 |
/* |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1068 |
* build a printf format string |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1069 |
*/ |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1070 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1071 |
__BEGIN_PROTECT_REGISTERS__ |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1072 |
#ifdef SYSV |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1073 |
len = snprintf(buffer, sizeof(buffer), "%.6lg", (double)__shortFloatVal(self)); |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1074 |
#else |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1075 |
len = snprintf(buffer, sizeof(buffer), "%.6G", (double)__shortFloatVal(self)); |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1076 |
#endif |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1077 |
__END_PROTECT_REGISTERS__ |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1078 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1079 |
if (len >= 0 && len < sizeof(buffer)-3) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1080 |
/* |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1081 |
* kludge to make integral float f prints as "f.0" (not as "f" as printf does) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1082 |
* (i.e. look if string contains '.' or 'e' and append '.0' if not) |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1083 |
*/ |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1084 |
for (cp = buffer; *cp; cp++) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1085 |
if ((*cp == '.') || (*cp == 'E') || (*cp == 'e')) break; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1086 |
} |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1087 |
if (!*cp && (cp[-1] >= '0') && (cp[-1] <= '9')) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1088 |
*cp++ = '.'; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1089 |
*cp++ = '0'; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1090 |
*cp = '\0'; |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1091 |
} |
8422
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1092 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1093 |
s = __MKSTRING(buffer); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1094 |
if (s != nil) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1095 |
RETURN (s); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1096 |
} |
8422
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1097 |
} |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1098 |
%}. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1099 |
" |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1100 |
memory allocation (for the new string) failed. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1101 |
When we arrive here, there was no memory, even after a garbage collect. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1102 |
This means, that the VM wanted to get some more memory from the |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1103 |
OS, which was not kind enough to give it. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1104 |
Bad luck - you should increase the swap space on your machine. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1105 |
" |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1106 |
^ ObjectMemory allocationFailureSignal raise. |
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1107 |
|
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1108 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1109 |
1.0 asShortFloat storeString |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1110 |
1.234 asShortFloat storeString |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1111 |
1e10 asShortFloat storeString |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1112 |
1.2e3 asShortFloat storeString |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1113 |
1.2e30 asShortFloat storeString |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1114 |
Float pi asShortFloat storeString |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1115 |
(1.0 uncheckedDivide:0) asShortFloat storeString |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1116 |
(0.0 uncheckedDivide:0) asShortFloat storeString |
8422
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1117 |
|
9121
561e28aa22f9
fixed: isNaN and isFinite (for WIN32)
Claus Gittinger <cg@exept.de>
parents:
8984
diff
changeset
|
1118 |
notice that the storeString is NOT affected by DecimalPointCharacterForPrinting: |
561e28aa22f9
fixed: isNaN and isFinite (for WIN32)
Claus Gittinger <cg@exept.de>
parents:
8984
diff
changeset
|
1119 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1120 |
DecimalPointCharacterForPrinting := $,. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1121 |
1.234 asShortFloat storeString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1122 |
1.0 asShortFloat storeString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1123 |
1e10 asShortFloat storeString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1124 |
1.2e3 asShortFloat storeString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1125 |
1.2e30 asShortFloat storeString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1126 |
(1.0 uncheckedDivide:0) asShortFloat storeString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1127 |
(0.0 uncheckedDivide:0) asShortFloat storeString. |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1128 |
DecimalPointCharacterForPrinting := $. |
8422
c206b4711b6e
Define #storeString to not use DecimalPointCharacter and to
Stefan Vogel <sv@exept.de>
parents:
8418
diff
changeset
|
1129 |
" |
1197 | 1130 |
! ! |
1131 |
||
3897 | 1132 |
!ShortFloat methodsFor:'special access'! |
1133 |
||
1134 |
exponent |
|
1135 |
"extract a normalized floats exponent. |
|
1136 |
The returned value depends on the float-representation of |
|
1137 |
the underlying machine and is therefore highly unportable. |
|
1138 |
This is not for general use. |
|
1139 |
This assumes that the mantissa is normalized to |
|
1140 |
0.5 .. 1.0 and the floats value is mantissa * 2^exp" |
|
1141 |
||
1142 |
%{ /* NOCONTEXT */ |
|
1143 |
||
1144 |
double frexp(); |
|
8913 | 1145 |
int exp; |
3897 | 1146 |
|
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1147 |
__threadErrno = 0; |
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8706
diff
changeset
|
1148 |
#if defined(__i386__) && defined(__GNUC__) |
7356 | 1149 |
frexpf( __shortFloatVal(self), &exp); |
1150 |
#else |
|
1151 |
frexp( (double)(__shortFloatVal(self)), &exp); |
|
1152 |
#endif |
|
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1153 |
if (__threadErrno == 0) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1154 |
RETURN (__mkSmallInteger(exp)); |
3897 | 1155 |
} |
1156 |
%}. |
|
7387 | 1157 |
^ super exponent |
3897 | 1158 |
|
1159 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1160 |
4.0 asShortFloat exponent |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1161 |
2.0 asShortFloat exponent |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1162 |
1.0 asShortFloat exponent |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1163 |
0.5 asShortFloat exponent |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1164 |
0.25 asShortFloat exponent |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1165 |
0.00000011111 asShortFloat exponent |
3897 | 1166 |
" |
1167 |
! |
|
1168 |
||
1169 |
mantissa |
|
1170 |
"extract a normalized floats mantissa. |
|
1171 |
The returned value depends on the float-representation of |
|
1172 |
the underlying machine and is therefore highly unportable. |
|
1173 |
This is not for general use. |
|
1174 |
This assumes that the mantissa is normalized to |
|
1175 |
0.5 .. 1.0 and the floats value is mantissa * 2^exp" |
|
1176 |
||
1177 |
%{ /* NOCONTEXT */ |
|
8913 | 1178 |
int exp; |
3897 | 1179 |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8706
diff
changeset
|
1180 |
#if defined(__i386__) && defined(__GNUC__) |
7356 | 1181 |
float frac; |
1182 |
||
1183 |
__threadErrno = 0; |
|
1184 |
frac = frexpf( (double)__shortFloatVal(self), &exp); |
|
1185 |
if (__threadErrno == 0) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1186 |
RETURN (__MKSFLOAT(frac)); |
7356 | 1187 |
} |
1188 |
#else |
|
3897 | 1189 |
double frexp(); |
1190 |
double frac; |
|
1191 |
||
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1192 |
__threadErrno = 0; |
3897 | 1193 |
frac = frexp( (double)(__shortFloatVal(self)), &exp); |
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1194 |
if (__threadErrno == 0) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1195 |
RETURN (__MKFLOAT(frac)); |
3897 | 1196 |
} |
7356 | 1197 |
#endif |
3897 | 1198 |
%}. |
1199 |
^ self primitiveFailed |
|
1200 |
||
1201 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1202 |
1.0 asShortFloat exponent |
3897 | 1203 |
1.0 asShortFloat mantissa |
1204 |
||
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1205 |
0.5 asShortFloat exponent |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1206 |
0.5 asShortFloat mantissa |
3897 | 1207 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1208 |
0.25 asShortFloat exponent |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1209 |
0.25 asShortFloat mantissa |
3897 | 1210 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1211 |
0.00000011111 asShortFloat exponent |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1212 |
0.00000011111 asShortFloat mantissa |
3897 | 1213 |
" |
1214 |
! ! |
|
1215 |
||
1197 | 1216 |
!ShortFloat methodsFor:'testing'! |
1217 |
||
3147 | 1218 |
isFinite |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1219 |
"return true, if the receiver is a finite float |
3147 | 1220 |
i.e. not NaN and not infinite." |
1221 |
||
1222 |
%{ /* NOCONTEXT */ |
|
8980
abee9fcb0385
cleanup isfinite() and isnan() - usage (HPUX)
Stefan Vogel <sv@exept.de>
parents:
8913
diff
changeset
|
1223 |
float fV = __shortFloatVal(self); |
3147 | 1224 |
|
3198
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1225 |
/* |
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1226 |
* notice: on machines which do not provide |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1227 |
* a isfinite() macro or function (WIN32), |
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4297
diff
changeset
|
1228 |
* 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
|
1229 |
*/ |
9121
561e28aa22f9
fixed: isNaN and isFinite (for WIN32)
Claus Gittinger <cg@exept.de>
parents:
8984
diff
changeset
|
1230 |
if (isfinitef(fV)) { RETURN (true); } |
3147 | 1231 |
%}. |
8980
abee9fcb0385
cleanup isfinite() and isnan() - usage (HPUX)
Stefan Vogel <sv@exept.de>
parents:
8913
diff
changeset
|
1232 |
^ false |
3147 | 1233 |
|
1234 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1235 |
1.0 asShortFloat isFinite |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1236 |
(0.0 asShortFloat uncheckedDivide: 0.0) isFinite |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1237 |
(1.0 asShortFloat uncheckedDivide: 0.0) isFinite |
3147 | 1238 |
" |
1239 |
! |
|
1240 |
||
2387 | 1241 |
isNaN |
1242 |
"return true, if the receiver is an invalid float (NaN - not a number). |
|
1243 |
These are not created by ST/X float operations (they raise an exception); |
|
1244 |
however, inline C-code could produce them ..." |
|
1245 |
||
1246 |
%{ /* NOCONTEXT */ |
|
9121
561e28aa22f9
fixed: isNaN and isFinite (for WIN32)
Claus Gittinger <cg@exept.de>
parents:
8984
diff
changeset
|
1247 |
float sV = __shortFloatVal(self); |
3139 | 1248 |
|
3198
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1249 |
/* |
4f930c1c96e7
care for systems which do not define finite() / isnan() - sigh
Claus Gittinger <cg@exept.de>
parents:
3194
diff
changeset
|
1250 |
* notice: on machines which do not provide |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1251 |
* a isnan() macro or function (WIN32), |
4305
e71100d13b67
void possible return warning
Claus Gittinger <cg@exept.de>
parents:
4297
diff
changeset
|
1252 |
* 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
|
1253 |
*/ |
9121
561e28aa22f9
fixed: isNaN and isFinite (for WIN32)
Claus Gittinger <cg@exept.de>
parents:
8984
diff
changeset
|
1254 |
if (isnanf(sV)) { RETURN (true); } |
2392 | 1255 |
%}. |
1256 |
^ false |
|
2387 | 1257 |
|
3147 | 1258 |
" |
7356 | 1259 |
1.0 asShortFloat isNaN |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1260 |
(0.0 asShortFloat uncheckedDivide: 0.0) isNaN |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1261 |
(0.0 asShortFloat uncheckedDivide: 0.0 asShortFloat) isNaN |
3147 | 1262 |
" |
2387 | 1263 |
! |
1264 |
||
6890
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1265 |
isNegativeZero |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1266 |
"many systems have two float.Pnt zeros" |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1267 |
|
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1268 |
%{ |
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8706
diff
changeset
|
1269 |
#if defined(__i386__) && defined(linux) |
6890
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1270 |
RETURN ((__ByteArrayInstPtr(self)->ba_element[sizeof(float)-1] == 128) ? true : false ); |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1271 |
#endif |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1272 |
%}. |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1273 |
^ super isNegativeZero |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1274 |
|
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1275 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1276 |
0.0 asShortFloat isNegativeZero |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1277 |
-0.0 asShortFloat isNegativeZero |
6890
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1278 |
" |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1279 |
! |
8e74eff54c3d
added isNegativeZero to test for -0.0
Claus Gittinger <cg@exept.de>
parents:
6574
diff
changeset
|
1280 |
|
1197 | 1281 |
negative |
1282 |
"return true if the receiver is less than zero" |
|
1283 |
||
1284 |
%{ /* NOCONTEXT */ |
|
1285 |
||
1286 |
RETURN ( (__shortFloatVal(self) < 0.0) ? true : false ); |
|
5411 | 1287 |
%}. |
1197 | 1288 |
! |
1289 |
||
5357 | 1290 |
numberOfBits |
1291 |
"return the size (in bits) of the real; |
|
1292 |
typically, 32 is returned here, |
|
1293 |
but who knows ..." |
|
1294 |
||
1295 |
%{ /* NOCONTEXT */ |
|
1296 |
||
8913 | 1297 |
RETURN (__mkSmallInteger (sizeof(float) * 8)); |
5357 | 1298 |
%} |
1299 |
||
1300 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1301 |
1.2 numberOfBits |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1302 |
1.2 asShortFloat numberOfBits |
5357 | 1303 |
" |
1304 |
||
1305 |
! |
|
1306 |
||
1197 | 1307 |
positive |
1308 |
"return true if the receiver is greater or equal to zero" |
|
1309 |
||
1310 |
%{ /* NOCONTEXT */ |
|
1311 |
||
1312 |
RETURN ( (__shortFloatVal(self) >= 0.0) ? true : false ); |
|
1313 |
%} |
|
1880 | 1314 |
! |
1315 |
||
1316 |
strictlyPositive |
|
1317 |
"return true if the receiver is greater than zero" |
|
1318 |
||
1319 |
%{ /* NOCONTEXT */ |
|
1320 |
||
1321 |
RETURN ( (__shortFloatVal(self) > 0.0) ? true : false ); |
|
1322 |
%} |
|
1197 | 1323 |
! ! |
1324 |
||
5552 | 1325 |
!ShortFloat methodsFor:'truncation & rounding'! |
3897 | 1326 |
|
7356 | 1327 |
ceiling |
1328 |
"return the smallest integer which is greater or equal to the receiver." |
|
1329 |
||
1330 |
|val| |
|
1331 |
||
1332 |
%{ |
|
1333 |
float fVal; |
|
1334 |
||
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8706
diff
changeset
|
1335 |
#if defined(__i386__) && defined(__GNUC__) |
7356 | 1336 |
fVal = ceilf(__shortFloatVal(self)); |
1337 |
#else |
|
1338 |
fVal = (float)(ceil((double)__shortFloatVal(self))); |
|
1339 |
#endif |
|
1340 |
/* |
|
1341 |
* ST-80 (and X3J20) returns integer. |
|
1342 |
*/ |
|
1343 |
if ((fVal >= (float)_MIN_INT) && (fVal <= (float)_MAX_INT)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1344 |
RETURN ( __mkSmallInteger( (INT) fVal ) ); |
7356 | 1345 |
} |
1346 |
__qMKSFLOAT(val, fVal); |
|
1347 |
%}. |
|
1348 |
^ val asInteger |
|
1349 |
||
1350 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1351 |
0.5 asShortFloat ceiling |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1352 |
-0.5 asShortFloat ceiling |
7356 | 1353 |
" |
1354 |
! |
|
1355 |
||
1356 |
ceilingAsFloat |
|
1357 |
"return the smallest integer-valued float greater or equal to the receiver. |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1358 |
This is much like #ceiling, but avoids a (possibly expensive) conversion |
7356 | 1359 |
of the result to an integer. |
1360 |
It may be useful, if the result is to be further used in another float-operation." |
|
1361 |
||
1362 |
%{ /* NOCONTEXT */ |
|
1363 |
float fVal; |
|
1364 |
OBJ v; |
|
1365 |
||
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8706
diff
changeset
|
1366 |
#if defined(__i386__) && defined(__GNUC__) |
7356 | 1367 |
fVal = ceilf(__shortFloatVal(self)); |
1368 |
#else |
|
1369 |
fVal = (float) ceil((double)__shortFloatVal(self)); |
|
1370 |
#endif |
|
1371 |
__qMKSFLOAT(v, fVal); |
|
1372 |
RETURN (v); |
|
1373 |
%} |
|
1374 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1375 |
0.5 asShortFloat ceilingAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1376 |
-0.5 asShortFloat ceilingAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1377 |
-1.5 asShortFloat ceilingAsFloat |
7356 | 1378 |
" |
1379 |
! |
|
1380 |
||
4100
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1381 |
floor |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1382 |
"return the integer nearest the receiver towards negative infinity." |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1383 |
|
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1384 |
|val| |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1385 |
|
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1386 |
%{ |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1387 |
float fVal; |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1388 |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8706
diff
changeset
|
1389 |
#if defined(__i386__) && defined(__GNUC__) |
7356 | 1390 |
fVal = floorf(__shortFloatVal(self)); |
1391 |
#else |
|
1392 |
fVal = (float)(floor((double)__shortFloatVal(self))); |
|
1393 |
#endif |
|
4100
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1394 |
/* |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1395 |
* ST-80 (and X3J20) returns integer. |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1396 |
*/ |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1397 |
if ((fVal >= (float)_MIN_INT) && (fVal <= (float)_MAX_INT)) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1398 |
RETURN ( __mkSmallInteger( (INT) fVal ) ); |
4100
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1399 |
} |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1400 |
__qMKSFLOAT(val, fVal); |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1401 |
%}. |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1402 |
^ val asInteger |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1403 |
|
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1404 |
" |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1405 |
0.5 asShortFloat floor |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1406 |
-0.5 asShortFloat floor |
4100
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1407 |
" |
7356 | 1408 |
! |
4100
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1409 |
|
7356 | 1410 |
floorAsFloat |
1411 |
"return the float which represents the next lower |
|
1412 |
integer nearest the receiver towards negative infinity. |
|
1413 |
Much like floor, but returns a float result - useful if the result |
|
1414 |
will be used in another float operation, to avoid costy int-conversion." |
|
4100
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1415 |
|
7356 | 1416 |
%{ /* NOCONTEXT */ |
1417 |
float fVal; |
|
1418 |
OBJ v; |
|
1419 |
||
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8706
diff
changeset
|
1420 |
#if defined(__i386__) && defined(__GNUC__) |
7356 | 1421 |
fVal = floorf(__shortFloatVal(self)); |
1422 |
#else |
|
1423 |
fVal = (float)(floor((double)__shortFloatVal(self))); |
|
1424 |
#endif |
|
1425 |
__qMKSFLOAT(v, fVal); |
|
1426 |
RETURN ( v ); |
|
1427 |
%} |
|
1428 |
||
1429 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1430 |
0.5 asShortFloat floorAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1431 |
-0.5 asShortFloat floorAsFloat |
7356 | 1432 |
" |
4100
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1433 |
! |
a605c54bf9a9
fixed floor (endless recursion)
Claus Gittinger <cg@exept.de>
parents:
3983
diff
changeset
|
1434 |
|
3897 | 1435 |
fractionPart |
1436 |
"extract the after-decimal fraction part. |
|
7356 | 1437 |
such that (self truncated + self fractionPart) = self" |
3897 | 1438 |
|
1439 |
%{ /* NOCONTEXT */ |
|
1440 |
||
1441 |
double modf(); |
|
1442 |
double frac, trunc; |
|
1443 |
||
5120
13143fbcbdf8
introduced __threadErrno (for native threads)
Claus Gittinger <cg@exept.de>
parents:
4825
diff
changeset
|
1444 |
__threadErrno = 0; |
3897 | 1445 |
frac = modf((double)(__shortFloatVal(self)), &trunc); |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1446 |
if (! isnan(frac)) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1447 |
if (__threadErrno == 0) { |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1448 |
RETURN (__MKSFLOAT((float)frac)); |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1449 |
} |
3897 | 1450 |
} |
1451 |
%}. |
|
7403 | 1452 |
^ self class |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1453 |
raise:#domainErrorSignal |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1454 |
receiver:self |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1455 |
selector:#fractionPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1456 |
arguments:#() |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1457 |
errorString:'bad receiver in fractionPart' |
3897 | 1458 |
|
1459 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1460 |
1.6 asShortFloat fractionPart + 1.6 asShortFloat truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1461 |
-1.6 asShortFloat fractionPart + -1.6 asShortFloat truncated |
7356 | 1462 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1463 |
1.0 asShortFloat fractionalPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1464 |
0.5 asShortFloat fractionalPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1465 |
0.25 asShortFloat fractionalPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1466 |
3.14159 asShortFloat fractionalPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1467 |
12345673.14159 asShortFloat fractionalPart |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1468 |
123456731231231231.14159 asShortFloat fractionalPart |
3897 | 1469 |
" |
7356 | 1470 |
! |
3897 | 1471 |
|
7356 | 1472 |
rounded |
1473 |
"return the receiver rounded to the nearest integer" |
|
1474 |
||
1475 |
|val| |
|
1476 |
||
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1477 |
%{ |
7356 | 1478 |
float fVal; |
1479 |
||
1480 |
fVal = __shortFloatVal(self); |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8706
diff
changeset
|
1481 |
#if defined(__i386__) && defined(__GNUC__) |
7356 | 1482 |
if (fVal < 0.0) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1483 |
fVal = ceilf(fVal - (float)0.5); |
7356 | 1484 |
} else { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1485 |
fVal = floorf(fVal + (float)0.5); |
7356 | 1486 |
} |
1487 |
#else |
|
1488 |
if (fVal < 0.0) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1489 |
fVal = (float)ceil((double)fVal - 0.5); |
7356 | 1490 |
} else { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1491 |
fVal = (float)floor((double)fVal + 0.5); |
7356 | 1492 |
} |
1493 |
#endif |
|
1494 |
/* |
|
1495 |
* ST-80 (and X3J20) returns integer. |
|
1496 |
*/ |
|
1497 |
if ((fVal >= (float)_MIN_INT) && (fVal <= (float)_MAX_INT)) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1498 |
RETURN ( __mkSmallInteger( (INT) fVal ) ); |
7356 | 1499 |
} |
1500 |
__qMKSFLOAT(val, fVal); |
|
1501 |
%}. |
|
1502 |
^ val asInteger |
|
1503 |
||
1504 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1505 |
0.4 asShortFloat rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1506 |
0.5 asShortFloat rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1507 |
0.6 asShortFloat rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1508 |
-0.4 asShortFloat rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1509 |
-0.5 asShortFloat rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1510 |
-0.6 asShortFloat rounded |
7356 | 1511 |
" |
1512 |
! |
|
1513 |
||
1514 |
roundedAsFloat |
|
1515 |
"return the receiver rounded to the nearest integer as a float. |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1516 |
This is much like #rounded, but avoids a (possibly expensive) conversion |
7356 | 1517 |
of the result to an integer. |
1518 |
It may be useful, if the result is to be further used in another float-operation." |
|
1519 |
||
1520 |
%{ /* NOCONTEXT */ |
|
1521 |
float fVal; |
|
1522 |
OBJ v; |
|
1523 |
||
1524 |
fVal = __shortFloatVal(self); |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8706
diff
changeset
|
1525 |
#if defined(__i386__) && defined(__GNUC__) |
7356 | 1526 |
if (fVal < 0.0) { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1527 |
fVal = ceilf(fVal - (float)0.5); |
7356 | 1528 |
} else { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1529 |
fVal = floorf(fVal + (float)0.5); |
7356 | 1530 |
} |
1531 |
#else |
|
1532 |
if (fVal < 0.0) { |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1533 |
fVal = (float)ceil((double)fVal - 0.5); |
7356 | 1534 |
} else { |
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1535 |
fVal = (float)floor((double)fVal + 0.5); |
7356 | 1536 |
} |
1537 |
#endif |
|
1538 |
__qMKSFLOAT(v, fVal); |
|
1539 |
RETURN (v); |
|
1540 |
%} |
|
1541 |
||
1542 |
" |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1543 |
0.4 asShortFloat rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1544 |
0.5 asShortFloat rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1545 |
0.6 asShortFloat rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1546 |
-0.4 asShortFloat rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1547 |
-0.5 asShortFloat rounded |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1548 |
-0.6 asShortFloat rounded |
7356 | 1549 |
|
17732
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1550 |
0.4 asShortFloat roundedAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1551 |
0.5 asShortFloat roundedAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1552 |
0.6 asShortFloat roundedAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1553 |
-0.4 asShortFloat roundedAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1554 |
-0.5 asShortFloat roundedAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1555 |
-0.6 asShortFloat roundedAsFloat |
7356 | 1556 |
" |
1557 |
! |
|
1558 |
||
1559 |
truncated |
|
1560 |
"return the receiver truncated towards zero as an integer" |
|
1561 |
||
1562 |
|val| |
|
1563 |
||
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Jan Vrany <jan.vrany@fit.cvut.cz>
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diff
changeset
|
1564 |
%{ |
7356 | 1565 |
float fVal; |
1566 |
||
1567 |
fVal = __shortFloatVal(self); |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8706
diff
changeset
|
1568 |
#if defined(__i386__) && defined(__GNUC__) |
7356 | 1569 |
if (fVal < 0.0) { |
17732
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trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
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diff
changeset
|
1570 |
fVal = ceilf(fVal); |
7356 | 1571 |
} else { |
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trunk merged into jv branch
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parents:
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diff
changeset
|
1572 |
fVal = floorf(fVal); |
7356 | 1573 |
} |
1574 |
#else |
|
1575 |
if (fVal < 0.0) { |
|
17732
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trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
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diff
changeset
|
1576 |
fVal = (float)ceil((double)fVal); |
7356 | 1577 |
} else { |
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trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
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diff
changeset
|
1578 |
fVal = (float)floor((double)fVal); |
7356 | 1579 |
} |
1580 |
#endif |
|
1581 |
/* |
|
1582 |
* ST-80 (and X3J20) returns integer. |
|
1583 |
*/ |
|
1584 |
if ((fVal >= (float)_MIN_INT) && (fVal <= (float)_MAX_INT)) { |
|
17732
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parents:
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diff
changeset
|
1585 |
RETURN ( __mkSmallInteger( (INT) fVal ) ); |
7356 | 1586 |
} |
1587 |
__qMKSFLOAT(val, fVal); |
|
1588 |
%}. |
|
1589 |
^ val asInteger |
|
1590 |
||
1591 |
" |
|
17732
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trunk merged into jv branch
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parents:
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diff
changeset
|
1592 |
0.5 asShortFloat truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1593 |
-0.5 asShortFloat truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1594 |
0.5 asShortFloat truncatedAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
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diff
changeset
|
1595 |
-0.5 asShortFloat truncatedAsFloat |
7356 | 1596 |
" |
1597 |
! |
|
1598 |
||
1599 |
truncatedAsFloat |
|
1600 |
"return the receiver truncated towards zero as a float. |
|
17732
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parents:
17711
diff
changeset
|
1601 |
This is much like #truncated, but avoids a (possibly expensive) conversion |
7356 | 1602 |
of the result to an integer. |
17732
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parents:
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diff
changeset
|
1603 |
It may be useful, if the result is to be further used in another |
7356 | 1604 |
float-operation." |
1605 |
||
1606 |
%{ /* NOCONTEXT */ |
|
1607 |
float fVal; |
|
1608 |
OBJ v; |
|
1609 |
||
1610 |
fVal = __shortFloatVal(self); |
|
8901
824a89d0b5c7
alpha64 vs. POINTER_SIZE cleanup
Claus Gittinger <cg@exept.de>
parents:
8706
diff
changeset
|
1611 |
#if defined(__i386__) && defined(__GNUC__) |
7356 | 1612 |
if (fVal < 0.0) { |
17732
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trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1613 |
fVal = ceilf(fVal); |
7356 | 1614 |
} else { |
17732
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trunk merged into jv branch
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parents:
17711
diff
changeset
|
1615 |
fVal = floorf(fVal); |
7356 | 1616 |
} |
1617 |
#else |
|
1618 |
if (fVal < 0.0) { |
|
17732
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trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1619 |
fVal = (float)ceil((double)fVal); |
7356 | 1620 |
} else { |
17732
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Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1621 |
fVal = (float)floor((double)fVal); |
7356 | 1622 |
} |
1623 |
#endif |
|
1624 |
__qMKSFLOAT(v, fVal); |
|
1625 |
RETURN (v); |
|
1626 |
%} |
|
1627 |
||
1628 |
" |
|
17732
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trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1629 |
0.5 asShortFloat truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1630 |
-0.5 asShortFloat truncated |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1631 |
0.5 asShortFloat truncatedAsFloat |
a1892eeca6c0
trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1632 |
-0.5 asShortFloat truncatedAsFloat |
7356 | 1633 |
" |
3897 | 1634 |
! ! |
1635 |
||
1880 | 1636 |
!ShortFloat class methodsFor:'documentation'! |
1197 | 1637 |
|
1638 |
version |
|
17735 | 1639 |
^ '$Id: ShortFloat.st 10480 2009-12-02 21:30:55Z vranyj1 $' |
1640 |
! |
|
1641 |
||
1642 |
version_CVS |
|
1643 |
^ '§Header: /cvs/stx/stx/libbasic/ShortFloat.st,v 1.101 2009/11/05 16:26:31 stefan Exp §' |
|
1197 | 1644 |
! ! |
17732
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trunk merged into jv branch
Jan Vrany <jan.vrany@fit.cvut.cz>
parents:
17711
diff
changeset
|
1645 |
|
17735 | 1646 |