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76060ec0b8
* po/header.pot: Replace with exact boilerplate pinard dictates.
* sysdeps/i386/strtok.S (Lillegal_argument): Remove this code to set
errno and the check that jumped to it.
* sysdeps/mach/hurd/Makefile (errnos.d): Use $(sed-remove-objpfx).
Thu May 30 03:21:57 1996 Ulrich Drepper <drepper@cygnus.com>
* FAQ: Document need of gperf program for developers.
* elf/elf.h: Fix typos in comments.
* libio/stdio.h [!__STRICT_ANSI__ || _POSIX_SOURCE]: Add
prototypes for `ctermid' and `cuserid'.
* locale/programs/locale.c: Switch to user selected locale
before printing variables.
* math/Makefile [$(long-double-fcts)==yes]: Define long-m-routines
and long-c-routines. Only if the `long double' data type is
available we need to compile the functions.
(libm-routines): Add $(long-m-routines).
(routines): Remove isinfl, isnanl. Use new file s_isinfl and
s_isnanl instead if `long double' is available.
* math/math.h: Include <mathcalls.h> again to define `long double'
functions.
* math/math_private.h: Define data types, prototypes and access
macros for `long double'.
* stdlib/stdlib.h: Add prototypes for `strtoll' and `strtoull'.
[GCC2 && OPTIMIZE]: Define strto{,u}ll as inline function which
calls __strto{,u}q_internal.
* stdlib/strfmon.c: Replace PTR by `void *'.
* stdlib/strtoq.c: Define strtoll as weak alias.
* stdlib/strtouq.c: Define strtoull as weak alias.
* string/tester.c: Correct `strsep' test.
* sysdeps/generic/strsep.c: Make compatible with BSD version.
Trailing characters of skip set are not skipped. In this case
empty tokens are returned.
* sysdeps/i386/isinfl.c, sysdeps/i386/isnanl.c,
sysdeps/ieee754/isinf.c, sysdeps/ieee754/isinfl.c,
sysdeps/ieee754/isnan.c, sysdeps/ieee754/isnanl.c: Removed. We
now use the versions part of libm.
* sysdeps/i386/strsep.S: Removed. Generic C version is of
similar speed.
* sysdeps/i386/strtok.S: Remove support for `strsep'.
* sysdeps/libm-i387/e_acosl.S, sysdeps/libm-i387/s_ceill.S,
sysdeps/libm-i387/s_copysignl.S, sysdeps/libm-i387/s_finitel.S,
sysdeps/libm-i387/s_floorl.S, sysdeps/libm-i387/s_isinfl.c,
sysdeps/libm-i387/s_isnanl.c, sysdeps/libm-i387/s_nextafterl.c,
sysdeps/libm-i387/s_rintl.S, sysdeps/libm-i387/s_significandl.S:
New i387 specific math functions implementing `long double'
versions.
* sysdeps/libm-ieee754/s_ceill.c,
sysdeps/libm-ieee754/s_copysignl.c,
sysdeps/libm-ieee754/s_fabsl.c, sysdeps/libm-ieee754/s_finitel.c,
sysdeps/libm-ieee754/s_floorl.c, sysdeps/libm-ieee754/s_isinfl.c,
sysdeps/libm-ieee754/s_isnanl.c,
sysdeps/libm-ieee754/s_nextafterl.c,
sysdeps/libm-ieee754/s_rintl.c, sysdeps/libm-ieee754/s_scalbnl.c,
sysdeps/libm-ieee754/s_significandl.c: New generic `long double'
versions of libm functions.
* sysdeps/libm-i387/e_exp.S: Add a few comments to explain the
Intel FPU nonsense.
* sysdeps/libm-i387/s_ceil.S, sysdeps/libm-i387/s_ceilf.S,
sysdeps/libm-i387/s_floor.S, sysdeps/libm-i387/s_floorf.S: Correct
handling of local variables. The old version created a stack
frame but stored the values outside.
* sysdeps/libm-ieee754/s_isinf.c, sysdeps/libm-ieee754/s_isnan.c
[!NO_LONG_DOUBLE]: Define alias with `long double' versions name.
* login/pututline_r.c: Include sys/stat.h. Fix typos.
according to currently used locale for category LC_CTYPE by
inet_nsap_ntoa. Now in <arpa/inet.h>.
_IO_dup2 to contain complete parameter list.
103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
/* s_nextafterl.c -- long double version of s_nextafter.c.
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* Special version for i387.
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* Conversion to long double by Ulrich Drepper,
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* Cygnus Support, drepper@cygnus.com.
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*/
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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#if defined(LIBM_SCCS) && !defined(lint)
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static char rcsid[] = "$NetBSD: $";
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#endif
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/* IEEE functions
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* nextafterl(x,y)
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* return the next machine floating-point number of x in the
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* direction toward y.
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* Special cases:
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*/
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#include "math.h"
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#include "math_private.h"
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#ifdef __STDC__
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long double __nextafterl(long double x, long double y)
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#else
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long double __nextafterl(x,y)
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long double x,y;
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#endif
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{
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int32_t hx,hy,ix,iy;
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u_int32_t lx,ly,esx,esy;
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GET_LDOUBLE_WORDS(esx,hx,lx,x);
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GET_LDOUBLE_WORDS(esy,hy,ly,y);
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ix = esx&0x7fff; /* |x| */
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iy = esy&0x7fff; /* |y| */
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/* The additional &hx/&hy is required because Intel's extended format
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has the normally implicit 1 explicit present. Sigh! */
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if(((ix==0x7fff)&&(((hx|lx)|-(hx|lx))&hx)>>31!=0) || /* x is nan */
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((iy==0x7fff)&&(((hy|ly)|-(hy|ly))&hy)>>31!=0)) /* y is nan */
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return x+y;
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if(x==y) return x; /* x=y, return x */
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if((ix|hx|lx)==0) { /* x == 0 */
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SET_LDOUBLE_WORDS(x,esx&0x8000,0,1);/* return +-minsubnormal */
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y = x*x;
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if(y==x) return y; else return x; /* raise underflow flag */
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}
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if(esx<0x8000) { /* x > 0 */
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if(ix>iy||((ix==iy) && (hx>hy||((hx==hy)&&(lx>ly))))) {
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/* x > y, x -= ulp */
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if(lx==0) {
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if (hx==0) esx -= 1;
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hx -= 1;
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}
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lx -= 1;
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} else { /* x < y, x += ulp */
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lx += 1;
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if(lx==0) {
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hx += 1;
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if (hx==0)
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esx += 1;
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}
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}
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} else { /* x < 0 */
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if(esy>=0||(ix>iy||((ix==iy)&&(hx>hy||((hx==hy)&&(lx>ly)))))){
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/* x < y, x -= ulp */
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if(lx==0) {
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if (hx==0) esx -= 1;
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hx -= 1;
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}
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lx -= 1;
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} else { /* x > y, x += ulp */
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lx += 1;
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if(lx==0) {
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hx += 1;
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if (hx==0) esx += 1;
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}
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}
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}
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esy = esx&0x7fff;
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if(esy==0x7fff) return x+x; /* overflow */
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if(esy==0) { /* underflow */
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y = x*x;
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if(y!=x) { /* raise underflow flag */
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SET_LDOUBLE_WORDS(y,esx,hx,lx);
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return y;
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}
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}
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SET_LDOUBLE_WORDS(x,esx,hx,lx);
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return x;
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}
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weak_alias (__nextafterl, nextafterl)
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