From ee188d555b8c32ad9704a7440cab400af967292f Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Wed, 5 Jun 1996 01:07:21 +0000 Subject: Tue Jun 4 21:01:20 1996 Roland McGrath * sysdeps/mach/hurd/getlogin_r.c: New file. Wed Jun 5 02:11:30 1996 Ulrich Drepper * 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 * 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. --- sysdeps/libm-ieee754/w_powl.c | 64 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 sysdeps/libm-ieee754/w_powl.c (limited to 'sysdeps/libm-ieee754/w_powl.c') diff --git a/sysdeps/libm-ieee754/w_powl.c b/sysdeps/libm-ieee754/w_powl.c new file mode 100644 index 0000000000..019664e0f1 --- /dev/null +++ b/sysdeps/libm-ieee754/w_powl.c @@ -0,0 +1,64 @@ +/* w_powl.c -- long double version of w_pow.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. + * ==================================================== + */ + +/* + * wrapper powl(x,y) return x**y + */ + +#include "math.h" +#include "math_private.h" + + +#ifdef __STDC__ + long double __powl(long double x, long double y)/* wrapper powl */ +#else + long double __powl(x,y) /* wrapper powl */ + long double x,y; +#endif +{ +#ifdef _IEEE_LIBM + return __ieee754_powl(x,y); +#else + long double z; + z=__ieee754_powl(x,y); + if(_LIB_VERSION == _IEEE_|| __isnanl(y)) return z; + if(__isnanl(x)) { + if(y==0.0) + return __kernel_standard(x,y,242); /* pow(NaN,0.0) */ + else + return z; + } + if(x==0.0){ + if(y==0.0) + return __kernel_standard(x,y,220); /* pow(0.0,0.0) */ + if(__finite(y)&&y<0.0) + return __kernel_standard(x,y,223); /* pow(0.0,negative) */ + return z; + } + if(!__finitel(z)) { + if(__finitel(x)&&__finitel(y)) { + if(__isnanl(z)) + return __kernel_standard(x,y,224); /* pow neg**non-int */ + else + return __kernel_standard(x,y,221); /* pow overflow */ + } + } + if(z==0.0&&__finitel(x)&&__finitel(y)) + return __kernel_standard(x,y,222); /* pow underflow */ + return z; +#endif +} +weak_alias (__powl, powl) -- cgit v1.2.3