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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
downloadglibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c')
-rw-r--r--sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c105
1 files changed, 0 insertions, 105 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c b/sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c
deleted file mode 100644
index e2f6521f57..0000000000
--- a/sysdeps/ieee754/ldbl-128ibm/s_nexttoward.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/* s_nexttoward.c
- * Conversion from s_nextafter.c by Ulrich Drepper, Cygnus Support,
- * drepper@cygnus.com and Jakub Jelinek, jj@ultra.linux.cz.
- */
-
-/*
- * ====================================================
- * 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: $";
-#endif
-
-/* IEEE functions
- * nexttoward(x,y)
- * return the next machine floating-point number of x in the
- * direction toward y.
- * Special cases:
- */
-
-#include "math.h"
-#include <math_private.h>
-#include <math_ldbl_opt.h>
-#include <float.h>
-
-#ifdef __STDC__
- double __nexttoward(double x, long double y)
-#else
- double __nexttoward(x,y)
- double x;
- long double y;
-#endif
-{
- int32_t hx,ix;
- int64_t hy,iy;
- u_int32_t lx;
- u_int64_t ly,uly;
-
- EXTRACT_WORDS(hx,lx,x);
- GET_LDOUBLE_WORDS64(hy,ly,y);
- ix = hx&0x7fffffff; /* |x| */
- iy = hy&0x7fffffffffffffffLL; /* |y| */
- uly = ly&0x7fffffffffffffffLL; /* |y| */
-
- if(((ix>=0x7ff00000)&&((ix-0x7ff00000)|lx)!=0) || /* x is nan */
- ((iy>=0x7ff0000000000000LL)&&((iy-0x7ff0000000000000LL)|uly)!=0))
- /* y is nan */
- return x+y;
- if((long double) x==y) return y; /* x=y, return y */
- if((ix|lx)==0) { /* x == 0 */
- double u;
- INSERT_WORDS(x,(u_int32_t)((hy>>32)&0x80000000),1);/* return +-minsub */
- u = math_opt_barrier (x);
- u = u * u;
- math_force_eval (u); /* raise underflow flag */
- return x;
- }
- if(hx>=0) { /* x > 0 */
- if (hy<0||(ix>>20)>(iy>>52)
- || ((ix>>20)==(iy>>52)
- && (((((int64_t)hx)<<32)|(lx))>(hy&0x000fffffffffffffLL)
- || (((((int64_t)hx)<<32)|(lx))==(hy&0x000fffffffffffffLL)
- )))) { /* x > y, x -= ulp */
- if(lx==0) hx -= 1;
- lx -= 1;
- } else { /* x < y, x += ulp */
- lx += 1;
- if(lx==0) hx += 1;
- }
- } else { /* x < 0 */
- if (hy>=0||(ix>>20)>(iy>>52)
- || ((ix>>20)==(iy>>52)
- && (((((int64_t)hx)<<32)|(lx))>(hy&0x000fffffffffffffLL)
- || (((((int64_t)hx)<<32)|(lx))==(hy&0x000fffffffffffffLL)
- )))) { /* x < y, x -= ulp */
- if(lx==0) hx -= 1;
- lx -= 1;
- } else { /* x > y, x += ulp */
- lx += 1;
- if(lx==0) hx += 1;
- }
- }
- hy = hx&0x7ff00000;
- if(hy>=0x7ff00000) {
- x = x+x; /* overflow */
- if (FLT_EVAL_METHOD != 0 && FLT_EVAL_METHOD != 1)
- /* Force conversion to double. */
- asm ("" : "+m"(x));
- return x;
- }
- if(hy<0x00100000) {
- double u = x*x; /* underflow */
- math_force_eval (u); /* raise underflow flag */
- }
- INSERT_WORDS(x,hx,lx);
- return x;
-}
-long_double_symbol (libm, __nexttoward, nexttoward);