From 6e953631df4b716fcf2d2bcfb62e44ffba2a6b40 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Fri, 30 Aug 1996 00:58:28 +0000 Subject: update from main archive 960829 Fri Aug 30 01:26:44 1996 Ulrich Drepper * sysdeps/unix/sysv/linux/i386/Dist: Add close.S. * sysdeps/unix/sysv/linux/m68k/Dist: Likewise. * sysdeps/unix/sysv/linux/alpha/Dist: Likewise. * version.c: Add comment about where to report bugs to. * catgets/gencat.c (usage): Likewise. * db/makedb.c (usage): Likewise. * locale/programs/locale.c (usage): Likewise. * locale/programs/localedef.c (usage): Likewise. * manual/socket.texi: A little bit better wording. Thu Aug 29 18:03:06 1996 Ulrich Drepper * Makerules: Make sure directory exists before generating stamp file. (BUILD_CFLAGS): Always refer to using $(..). * manual/Makefile: Make sure directory exists before generating stamp file. (make-target-directory): Add macro definition. * sysdeps/generic/Makefile: Make sure directory exists before generating stamp file. * Makefile (distribute): Add autolock.sh. Reported by Fila Kolodny. Tue Aug 27 10:06:22 1996 Andreas Schwab When compiling in separate directory put objects into subdirectories matching the source layout. * Makeconfig (objpfx) [ifdef objdir]: Append $(subdir). When looking for configparms try in $(common-objpfx). Use $(common-objpfx)SUBDIR to find objects from other subdirectory builds. * Makerules: Add $(objpfx) to vpath list. (make-dummy-dep): Use $(common-objpfx) to avoid creating dummy.d more than once. All uses in dependency lists changed. (+make-deps): Make target directory. (sed-remove-objpfx): Substitute $(common-objpfx). (do-ar, build-extra-lib, $(common-objpfx)stub-$(subdir)): Use $(objpfx) instead of $(objdir) for cd command. (O%-lib): Always find libc relative to $(..). (subdir-stamps): Collect stamp files from subdirs. (common-mostlyclean): Remove stub file in $(common-objpfx). * MakeTAGS ($P/siglist.pot): Find siglist.c in stdio-common. * Rules (dep-dummy-lib): Use $(common-objpfx) to avoid creating to more than once. ($(objpfx)dummy.c, $(objpfx)empty.c): Change target name to use $(common-objfpx). All uses in dependency lists changed. (generated): Prepend $(..) to names. * bare/Makefile ($(objpfx)lib$(config-vendor).a): Remove $(objpfx) from $@. * nss/Makefile ($(objpfx)libnss_dns.so, $(objpfx)libnss_db.so): Use $(common-objpfx) instead of $(..) in dependencies. * sysdeps/mach/Makefile (mach-objpfx): Unconditionally use $(common-objpfx) instead of $(..) and (objpfx). * sysdeps/mach/hurd/Makefile (hurd-objpfx): Likewise. (rpath-link): Likewise. (rpcuserlibs): Likewise. * sysdeps/unix/Makefile [$(subdir) = stdio-common]: Check for errlist.c in $(objpfx), not $(common-objpfx). ($(common-objpfx)s-proto.d): Special rule not covered by pattern rule. * sysdeps/unix/make-syscalls.sh: Make syscall rules depending on s-proto.d in $(common-objpfx), not $(objpfx). Thu Aug 29 17:45:49 1996 Ulrich Drepper * nss/nsswitch.c (nss_dlerror_run): Free returned error string. Thu Aug 29 15:53:33 1996 Ulrich Drepper * sysdeps/libm-ieee754/e_acoshl.c: New file. `long double' implementation. * sysdeps/libm-ieee754/e_atanhl.c: Likewise. * sysdeps/libm-ieee754/e_remainderl.c: Likewise. * sysdeps/libm-ieee754/e_scalbl.c: Likewise. * sysdeps/libm-ieee754/s_asinhl.c: Likewise. * sysdeps/libm-ieee754/s_cosl.c: Likewise. * sysdeps/libm-ieee754/s_sinl.c: Likewise. * sysdeps/libm-ieee754/s_tanhl.c: Likewise. * sysdeps/libm-ieee754/s_tanl.c: Likewise. * stdio-common/printf_fp.c (__printf_fp): Use default value '.' if --- sysdeps/libm-ieee754/e_remainderl.c | 83 +++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) create mode 100644 sysdeps/libm-ieee754/e_remainderl.c (limited to 'sysdeps/libm-ieee754/e_remainderl.c') diff --git a/sysdeps/libm-ieee754/e_remainderl.c b/sysdeps/libm-ieee754/e_remainderl.c new file mode 100644 index 0000000000..3b2cd7c5e5 --- /dev/null +++ b/sysdeps/libm-ieee754/e_remainderl.c @@ -0,0 +1,83 @@ +/* e_remainderl.c -- long double version of e_remainder.c. + * Conversion to long double by Ulrich Drepper, + * Cygnus Support, drepper@cygnus.com. + */ + +/* + * ==================================================== + * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. + * + * Developed at SunPro, a Sun Microsystems, Inc. business. + * Permission to use, copy, modify, and distribute this + * software is freely granted, provided that this notice + * is preserved. + * ==================================================== + */ + +#if defined(LIBM_SCCS) && !defined(lint) +static char rcsid[] = "$NetBSD: $"; +#endif + +/* __ieee754_remainderl(x,p) + * Return : + * returns x REM p = x - [x/p]*p as if in infinite + * precise arithmetic, where [x/p] is the (infinite bit) + * integer nearest x/p (in half way case choose the even one). + * Method : + * Based on fmod() return x-[x/p]chopped*p exactlp. + */ + +#include "math.h" +#include "math_private.h" + +#ifdef __STDC__ +static const long double zero = 0.0; +#else +static long double zero = 0.0; +#endif + + +#ifdef __STDC__ + long double __ieee754_remainderl(long double x, long double p) +#else + long double __ieee754_remainderl(x,p) + long double x,p; +#endif +{ + u_int32_t sx,sex,sep,x0,x1,p0,p1; + long double p_half; + + EXTRACT_LDOUBLE_WORDS(sex,x0,x1,x); + EXTRACT_LDOUBLE_WORDS(sep,p0,p1,p); + sx = sex&0x8000; + sep &= 0x7fff; + sex &= 0x7fff; + + /* purge off exception values */ + if((sep|p0|p1)==0) return (x*p)/(x*p); /* p = 0 */ + if((sex==0x7fff)|| /* x not finite */ + ((sep==0x7fff)&& /* p is NaN */ + ((p0|p1)!=0))) + return (x*p)/(x*p); + + + if (sep<0x7ffe) x = __ieee754_fmodl(x,p+p); /* now x < 2p */ + if (((sex-sep)|(x0-p0)|(x1-p1))==0) return zero*x; + x = fabsl(x); + p = fabsl(p); + if (sep<0x0002) { + if(x+x>p) { + x-=p; + if(x+x>=p) x -= p; + } + } else { + p_half = 0.5*p; + if(x>p_half) { + x-=p; + if(x>=p_half) x -= p; + } + } + GET_LDOUBLE_EXP(sex,x); + SET_LDOUBLE_EXP(x,sex^sx); + return x; +} -- cgit v1.2.1