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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/s_nearbyintl.c
parent86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff)
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Update.
Diffstat (limited to 'sysdeps/libm-ieee754/s_nearbyintl.c')
-rw-r--r--sysdeps/libm-ieee754/s_nearbyintl.c100
1 files changed, 0 insertions, 100 deletions
diff --git a/sysdeps/libm-ieee754/s_nearbyintl.c b/sysdeps/libm-ieee754/s_nearbyintl.c
deleted file mode 100644
index 3b0715e5a5..0000000000
--- a/sysdeps/libm-ieee754/s_nearbyintl.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/* s_rintl.c -- long double version of s_rint.c.
- * Conversion to long double by Ulrich Drepper,
- * Cygnus Support, drepper@cygnus.com.
- */
-/* Adapted for use as nearbyint by Ulrich Drepper <drepper@cygnus.com>.  */
-
-/*
- * ====================================================
- * 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.
- * ====================================================
- */
-
-/*
- * rintl(x)
- * Return x rounded to integral value according to the prevailing
- * rounding mode.
- * Method:
- *	Using floating addition.
- * Exception:
- *	Inexact flag raised if x not equal to rintl(x).
- */
-
-#include <fenv.h>
-#include "math.h"
-#include "math_private.h"
-
-#ifdef __STDC__
-static const long double
-#else
-static long double
-#endif
-TWO63[2]={
-  9.223372036854775808000000e+18, /* 0x403E, 0x00000000, 0x00000000 */
- -9.223372036854775808000000e+18  /* 0xC03E, 0x00000000, 0x00000000 */
-};
-
-#ifdef __STDC__
-	long double __nearbyintl(long double x)
-#else
-	long double __nearbyintl(x)
-	long double x;
-#endif
-{
-	fenv_t env;
-	int32_t se,j0,sx;
-	u_int32_t i,i0,i1;
-	long double w,t;
-	GET_LDOUBLE_WORDS(se,i0,i1,x);
-	sx = (se>>15)&1;
-	j0 = (se&0x7fff)-0x3fff;
-	if(j0<31) {
-	    if(j0<0) {
-		if(((se&0x7fff)|i0|i1)==0) return x;
-		i1 |= i0;
-		i0 &= 0xe0000000;
-		i0 |= (i1|-i1)&0x80000000;
-		SET_LDOUBLE_MSW(x,i0);
-		feholdexcept (&env);
-	        w = TWO63[sx]+x;
-	        t = w-TWO63[sx];
-		fesetenv (&env);
-		GET_LDOUBLE_EXP(i0,t);
-		SET_LDOUBLE_EXP(t,(i0&0x7fff)|(sx<<15));
-	        return t;
-	    } else {
-		i = (0x7fffffff)>>j0;
-		if(((i0&i)|i1)==0) return x; /* x is integral */
-		i>>=1;
-		if(((i0&i)|i1)!=0) {
-		    if(j0==31) i1 = 0x40000000; else
-		    i0 = (i0&(~i))|((0x20000000)>>j0);
-		    /* Shouldn't this be
-		         if (j0 >= 30) i1 = 0x80000000 >> (j0 - 30);
-		         i0 = (i0&(~i))|((0x20000000)>>j0);
-		       If yes, this should be correct in s_rint and
-		       s_rintf, too.  -- drepper@cygnus.com */
-		}
-	    }
-	} else if (j0>62) {
-	    if(j0==0x4000) return x+x;	/* inf or NaN */
-	    else return x;		/* x is integral */
-	} else {
-	    i = ((u_int32_t)(0xffffffff))>>(j0-31);
-	    if((i1&i)==0) return x;	/* x is integral */
-	    i>>=1;
-	    if((i1&i)!=0) i1 = (i1&(~i))|((0x40000000)>>(j0-31));
-	}
-	SET_LDOUBLE_WORDS(x,se,i0,i1);
-	feholdexcept (&env);
-	w = TWO63[sx]+x;
-	t = w-TWO63[sx];
-	fesetenv (&env);
-	return t;
-}
-weak_alias (__nearbyintl, nearbyintl)