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authorUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
committerUlrich Drepper <drepper@redhat.com>1999-07-14 00:54:57 +0000
commitabfbdde177c3a7155070dda1b2cdc8292054cc26 (patch)
treee021306b596381fbf8311d2b7eb294e918ff17c8 /sysdeps/libm-ieee754/e_remainder.c
parent86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff)
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Update.
Diffstat (limited to 'sysdeps/libm-ieee754/e_remainder.c')
-rw-r--r--sysdeps/libm-ieee754/e_remainder.c80
1 files changed, 0 insertions, 80 deletions
diff --git a/sysdeps/libm-ieee754/e_remainder.c b/sysdeps/libm-ieee754/e_remainder.c
deleted file mode 100644
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--- a/sysdeps/libm-ieee754/e_remainder.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/* @(#)e_remainder.c 5.1 93/09/24 */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice 
- * is preserved.
- * ====================================================
- */
-
-#if defined(LIBM_SCCS) && !defined(lint)
-static char rcsid[] = "$NetBSD: e_remainder.c,v 1.8 1995/05/10 20:46:05 jtc Exp $";
-#endif
-
-/* __ieee754_remainder(x,p)
- * Return :                  
- * 	returns  x REM p  =  x - [x/p]*p as if in infinite 
- * 	precise arithmetic, where [x/p] is the (infinite bit) 
- *	integer nearest x/p (in half way case choose the even one).
- * Method : 
- *	Based on fmod() return x-[x/p]chopped*p exactlp.
- */
-
-#include "math.h"
-#include "math_private.h"
-
-#ifdef __STDC__
-static const double zero = 0.0;
-#else
-static double zero = 0.0;
-#endif
-
-
-#ifdef __STDC__
-	double __ieee754_remainder(double x, double p)
-#else
-	double __ieee754_remainder(x,p)
-	double x,p;
-#endif
-{
-	int32_t hx,hp;
-	u_int32_t sx,lx,lp;
-	double p_half;
-
-	EXTRACT_WORDS(hx,lx,x);
-	EXTRACT_WORDS(hp,lp,p);
-	sx = hx&0x80000000;
-	hp &= 0x7fffffff;
-	hx &= 0x7fffffff;
-
-    /* purge off exception values */
-	if((hp|lp)==0) return (x*p)/(x*p); 	/* p = 0 */
-	if((hx>=0x7ff00000)||			/* x not finite */
-	  ((hp>=0x7ff00000)&&			/* p is NaN */
-	  (((hp-0x7ff00000)|lp)!=0)))
-	    return (x*p)/(x*p);
-
-
-	if (hp<=0x7fdfffff) x = __ieee754_fmod(x,p+p);	/* now x < 2p */
-	if (((hx-hp)|(lx-lp))==0) return zero*x;
-	x  = fabs(x);
-	p  = fabs(p);
-	if (hp<0x00200000) {
-	    if(x+x>p) {
-		x-=p;
-		if(x+x>=p) x -= p;
-	    }
-	} else {
-	    p_half = 0.5*p;
-	    if(x>p_half) {
-		x-=p;
-		if(x>=p_half) x -= p;
-	    }
-	}
-	GET_HIGH_WORD(hx,x);
-	SET_HIGH_WORD(x,hx^sx);
-	return x;
-}