From bc9f6000f6752153e5e1902259d5f491a88a1ae5 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sun, 23 Mar 1997 01:54:07 +0000 Subject: Update. 1997-03-23 02:11 Ulrich Drepper * time/sys/time.h: Make values ITIMER_* also available as macros. * elf/dl-support.c (_dl_sysdep_read_whole_file): Don't call __fstat but instead __fxstat directly to avoid dependency on libc.a when inline failed. * sysdeps/generic/dl-sysdep.c (_dl_sysdep_read_whole_file): Likewise. * math/Makefile (libm-routines): Add s_remquo. * sysdeps/libm-i387/s_remquo.S: New file. * sysdeps/libm-i387/s_remquof.S: New file. * sysdeps/libm-i387/s_remquol.S: New file. * sysdeps/libm-ieee754/s_remquo.c: New file. * sysdeps/libm-ieee754/s_remquof.c: New file. * sysdeps/libm-ieee754/s_remquol.c: New file. * math/libm-test.c (remquo_test): New function. * sysdeps/libm-ieee754/s_rintl.c: Handle implicit leading one correctly. 1997-03-22 14:06 Ulrich Drepper * math/Makefile (libm-calls): Add s_nan. * sysdeps/libm-ieee754/s_nan.c: New file. Implement `nan' function. * sysdeps/libm-ieee754/s_nanf.c: New file. Implement `nanf' function. * sysdeps/libm-ieee754/s_nanl.c: New file. Implement `nanl' function. * math/libm-test.c (basic_tests): Add tests for `nan' function. * math/libm-test.c (copysign_test): New function. (main): Call copysign_test. 1997-03-22 06:28 Ulrich Drepper * sysdeps/libm-ieee754/s_nextafter.c: Return y if x == y. * sysdeps/libm-ieee754/s_nextafterf.c: Likewise. * sysdeps/libm-ieee754/s_nextafterl.c: Likewise. * sysdeps/libm-i387/s_nextafterl.c: Likewise. * math/libm-test.c (fdim_test, fmin_test, fmax_test, nextafter_test): New functions. Test these functions. (main): Call above new functions. 1997-03-22 04:53 Ulrich Drepper * Net release 2.0.2. 1997-03-22 04:37 Ulrich Drepper * sysdeps/unix/sysv/linux/termbits.h (OXTABS): Define as alias for XTABS. * sysdeps/unix/sysv/linux/alpha/termbits.h (OXTABS): Likewise. * termios/sys/ttydefaults.h: Partly revert patch by Andreas Schwab of Sun Dec 15 16:33:44 1996. Proposed by Thomas Bushnell . 1997-03-21 13:41 Roland McGrath * sysdeps/sparc/dl-machine.h (elf_machine_rel): Rewritten as for i386. Check here for non-SHN_UNDEF STB_LOCAL symbols don't do any lookup or consult their values. (elf_machine_lookup_noexec_p, elf_machine_lookup_noplt_p, ELF_MACHINE_RELOC_NOPLT): New macros. * elf/rtld.c (dl_main): Pass ELF_MACHINE_RELOC_NOPLT to _dl_lookup_symbol in place of DL_LOOKUP_NOPLT. * sysdeps/i386/dl-machine.h (ELF_MACHINE_RELOC_NOPLT): New macro. * sysdeps/i386/dl-machine.h (elf_machine_rel): Rewritten to do the symbol lookup before checking reloc type except for R_386_RELATIVE. (elf_machine_lookup_noexec_p, elf_machine_lookup_noplt_p): New macros. * elf/dl-reloc.c (RESOLVE): Remove STB_LOCAL check; let it be per-machine since it supposedly can't happen on i386. * elf/dl-lookup.c (do_lookup): Change arg FLAGS to RELOC_TYPE. Use elf_machine_lookup_{noexec,noplt}_p macros on it. Remove gratuitous indirection from REF arg; change callers. (_dl_lookup_symbol, _dl_lookup_versioned_symbol): Change arg name. (_dl_lookup_symbol_skip, _dl_lookup_versioned_symbol_skip): Remove FLAGS arg altogether. * elf/dlsym.c: Remove argument of FLAGS parameter. * elf/dlvsym.c: Likewise. * elf/link.h: Update decls. * Makefile (distribute): Add BUGS. --- sysdeps/libm-ieee754/s_nanl.c | 48 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 sysdeps/libm-ieee754/s_nanl.c (limited to 'sysdeps/libm-ieee754/s_nanl.c') diff --git a/sysdeps/libm-ieee754/s_nanl.c b/sysdeps/libm-ieee754/s_nanl.c new file mode 100644 index 0000000000..df0180ee46 --- /dev/null +++ b/sysdeps/libm-ieee754/s_nanl.c @@ -0,0 +1,48 @@ +/* Return quiet nan. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* XXX The ISO C 9X standard mentions a `n-char-sequence' which is provided + as the argument to this function but I have no clue what this means. + Perhaps it is a description of the bits set in the mantissa. */ +#include +#ifdef HANDLE_TAGP +# include +# include +#else +# include +#endif + + +long double +nanl (const char *tagp) +{ +#ifdef HANDLE_TAGP + /* If we ever should have use of the TAGP parameter we will use the + strtod function to analyze it. */ + char buf[6 + strlen (tagp)]; + sprintf (buf, "NAN(%s)", tagp); + return strtold (buf, NULL); +#else + static const union ieee854_long_double nan_value = + { ieee: { mantissa1: 0x1, mantissa0: 0x80000000, + exponent: 0x7fff, negative: 0 } }; + return nan_value.d; +#endif +} -- cgit 1.4.1