mirror of
https://github.com/openRuyi-Project/gcc.git
synced 2026-06-16 00:16:04 +00:00
Mark Wielaard
8aa540d2f7
Imported GNU Classpath 0.90
* scripts/makemake.tcl: Set gnu/java/awt/peer/swing to ignore.
* gnu/classpath/jdwp/VMFrame.java (SIZE): New constant.
* java/lang/VMCompiler.java: Use gnu.java.security.hash.MD5.
* java/lang/Math.java: New override file.
* java/lang/Character.java: Merged from Classpath.
(start, end): Now 'int's.
(canonicalName): New field.
(CANONICAL_NAME, NO_SPACES_NAME, CONSTANT_NAME): New constants.
(UnicodeBlock): Added argument.
(of): New overload.
(forName): New method.
Updated unicode blocks.
(sets): Updated.
* sources.am: Regenerated.
* Makefile.in: Likewise.
From-SVN: r111942
52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
|
|
/* @(#)e_scalb.c 1.3 95/01/18 */
|
|
/*
|
|
* ====================================================
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|
*
|
|
* Developed at SunSoft, a Sun Microsystems, Inc. business.
|
|
* Permission to use, copy, modify, and distribute this
|
|
* software is freely granted, provided that this notice
|
|
* is preserved.
|
|
* ====================================================
|
|
*/
|
|
|
|
/*
|
|
* __ieee754_scalb(x, fn) is provide for
|
|
* passing various standard test suite. One
|
|
* should use scalbn() instead.
|
|
*/
|
|
|
|
#include "fdlibm.h"
|
|
|
|
#ifdef _SCALB_INT
|
|
#ifdef __STDC__
|
|
double __ieee754_scalb(double x, int fn)
|
|
#else
|
|
double __ieee754_scalb(x,fn)
|
|
double x; int fn;
|
|
#endif
|
|
#else
|
|
#ifdef __STDC__
|
|
double __ieee754_scalb(double x, double fn)
|
|
#else
|
|
double __ieee754_scalb(x,fn)
|
|
double x, fn;
|
|
#endif
|
|
#endif
|
|
{
|
|
#ifdef _SCALB_INT
|
|
return scalbn(x,fn);
|
|
#else
|
|
if (isnan(x)||isnan(fn)) return x*fn;
|
|
if (!finite(fn)) {
|
|
if(fn>0.0) return x*fn;
|
|
else return x/(-fn);
|
|
}
|
|
if (rint(fn)!=fn) return (fn-fn)/(fn-fn);
|
|
if ( fn > 65000.0) return scalbn(x, 65000);
|
|
if (-fn > 65000.0) return scalbn(x,-65000);
|
|
return scalbn(x,(int)fn);
|
|
#endif
|
|
}
|