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author | Roland McGrath <roland@gnu.org> | 1996-06-05 01:07:21 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1996-06-05 01:07:21 +0000 |
commit | ee188d555b8c32ad9704a7440cab400af967292f (patch) | |
tree | 037a4821d35c11f2bbf89e7e71dc43dada67b166 /sysdeps/libm-ieee754/w_scalbl.c | |
parent | f68b86cc7bdcee246296d49f3a3318c1b97693f0 (diff) | |
download | glibc-ee188d555b8c32ad9704a7440cab400af967292f.zip glibc-ee188d555b8c32ad9704a7440cab400af967292f.tar.gz glibc-ee188d555b8c32ad9704a7440cab400af967292f.tar.bz2 |
Tue Jun 4 21:01:20 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* sysdeps/mach/hurd/getlogin_r.c: New file.
Wed Jun 5 02:11:30 1996 Ulrich Drepper <drepper@cygnus.com>
* io/Makefile (routines): Add ttyname_r.
* resolv/res_debug.c, resolv/resolv.h: Update from bind-4.3.4-T4A.
* sysdeps/libm-i387/e_asinl.S, sysdeps/libm-i387/e_atan2l.S,
sysdeps/libm-i387/e_expl.S, sysdeps/libm-i387/e_fmodl.S,
sysdeps/libm-i387/e_log10l.S, sysdeps/libm-i387/e_logl.S,
sysdeps/libm-i387/e_remainderl.S, sysdeps/libm-i387/e_scalbl.S,
sysdeps/libm-i387/e_sqrtl.S, sysdeps/libm-i387/s_atanl.S,
sysdeps/libm-i387/s_cosl.S, sysdeps/libm-i387/s_ilogbl.S,
sysdeps/libm-i387/s_log1pl.S, sysdeps/libm-i387/s_logbl.S,
sysdeps/libm-i387/s_scalbnl.S, sysdeps/libm-i387/s_sinl.S,
sysdeps/libm-i387/s_tanl.S: New files. i387 assembler versions
of `long double' math functions.
* sysdeps/libm-ieee754/k_standard.c: Add handling for errors
in long double functions.
* sysdeps/libm-ieee754/s_ilogbl.c, sysdeps/libm-ieee754/s_logbl.c,
sysdeps/libm-ieee754/s_modfl.c: New files. Generic versions
of `long double' math functions.
* sysdeps/libm-ieee754/s_isinf.c [NO_LONG_DOUBLE]: Add string
alias for __isinfl.
* sysdeps/libm-ieee754/w_acoshl.c, sysdeps/libm-ieee754/w_acosl.c,
sysdeps/libm-ieee754/w_asinl.c, sysdeps/libm-ieee754/w_atan2l.c,
sysdeps/libm-ieee754/w_atanhl.c, sysdeps/libm-ieee754/w_cabsl.c,
sysdeps/libm-ieee754/w_coshl.c, sysdeps/libm-ieee754/w_dreml.c,
sysdeps/libm-ieee754/w_expl.c, sysdeps/libm-ieee754/w_fmodl.c,
sysdeps/libm-ieee754/w_gammal.c, sysdeps/libm-ieee754/w_gammal_r.c,
sysdeps/libm-ieee754/w_hypotl.c, sysdeps/libm-ieee754/w_j0l.c,
sysdeps/libm-ieee754/w_j1l.c, sysdeps/libm-ieee754/w_jnl.c,
sysdeps/libm-ieee754/w_lgammal.c, sysdeps/libm-ieee754/w_lgammal_r.c,
sysdeps/libm-ieee754/w_log10l.c, sysdeps/libm-ieee754/w_logl.c,
sysdeps/libm-ieee754/w_powl.c, sysdeps/libm-ieee754/w_remainderl.c,
sysdeps/libm-ieee754/w_scalbl.c, sysdeps/libm-ieee754/w_sinhl.c,
sysdeps/libm-ieee754/w_sqrtl.c: New files. Wrapper functions
around long double function implementations.
* sysdeps/posix/ttyname_r.c (ttyname_r): Use _D_EXACT_NAMLEN
to determine length of directory entry name.
* posix/Makefile (routines): Add getlogin_r.
* posix/unistd.h: Add prototype for getlogin_r.
* sysdeps/stub/getlogin_r.c: New file. Reentrant version of
getlogin function, specified in P1003.1c/D6. Stub version.
* sysdeps/unix/getlogin.c (getlogin): Use ttyname_r instead of
ttyname. This avoids saving and restoring the old content.
Also use setutent_r, getutline_r and endutent_r instead of
accing UTMP file directly.
* sysdeps/unix/getlogin_r.c: New file. Reentrant version of
getlogin function, specified in P1003.1c/D6.
Tue Jun 4 20:10:09 1996 J.T. Conklin <jtc@cygnus.com>
* sysdeps/libm-i387/s_finitef.S: Fix mask for exponent.
* elf/dl-lookup.c (_dl_lookup_symbol): Grok magical undefined symbols
_GNU_libc_dl_{open,close,symbol} and resolve them to dl functions.
* elf/rtld.c (rtld_map): Renamed to _dl_rtld_map, made global.
* elf/link.h: Declare _dl_rtld_map.
* elf/dl-lookup.c (_dl_symbol_value): New function.
* elf/link.h: Declare it.
stdio-common/vfscanf.c: Prepare for reentrant libio.
Used in reentrant libio.
Diffstat (limited to 'sysdeps/libm-ieee754/w_scalbl.c')
-rw-r--r-- | sysdeps/libm-ieee754/w_scalbl.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/sysdeps/libm-ieee754/w_scalbl.c b/sysdeps/libm-ieee754/w_scalbl.c new file mode 100644 index 0000000..ff5117d --- /dev/null +++ b/sysdeps/libm-ieee754/w_scalbl.c @@ -0,0 +1,65 @@ +/* w_scalbl.c -- long double version of w_scalb.c. + * Conversion to long double by Ulrich Drepper, + * Cygnus Support, 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. + * ==================================================== + */ + +#if defined(LIBM_SCCS) && !defined(lint) +static char rcsid[] = "$NetBSD: $"; +#endif + +/* + * wrapper scalbl(long double x, long double fn) is provide for + * passing various standard test suite. One + * should use scalbnl() instead. + */ + +#include "math.h" +#include "math_private.h" + +#include <errno.h> + +#ifdef __STDC__ +#ifdef _SCALB_INT + long double __scalbl(long double x, int fn) /* wrapper scalbl */ +#else + long double __scalbl(long double x, long double fn)/* wrapper scalbl */ +#endif +#else + long double __scalbl(x,fn) /* wrapper scalbl */ +#ifdef _SCALB_INT + long double x; int fn; +#else + long double x,fn; +#endif +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_scalbl(x,fn); +#else + long double z; + z = __ieee754_scalbl(x,fn); + if(_LIB_VERSION == _IEEE_) return z; + if(!(__finitel(z)||__isnanl(z))&&__finitel(x)) { + return __kernel_standard(x,(double)fn,232); /* scalb overflow */ + } + if(z==0.0&&z!=x) { + return __kernel_standard(x,(double)fn,233); /* scalb underflow */ + } +#ifndef _SCALB_INT + if(!__finitel(fn)) errno = ERANGE; +#endif + return z; +#endif +} +weak_alias (__scalbl, scalbl) |