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bc9f6000f6
1997-03-23 02:11 Ulrich Drepper <drepper@cygnus.com>
* 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 <drepper@cygnus.com>
* 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 <drepper@cygnus.com>
* 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 <drepper@cygnus.com>
* Net release 2.0.2.
1997-03-22 04:37 Ulrich Drepper <drepper@cygnus.com>
* 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 <thomas@gnu.ai.mit.edu>.
1997-03-21 13:41 Roland McGrath <roland@baalperazim.frob.com>
* 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.
107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
/* Compute remainder and a congruent to the quotient.
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Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <math.h>
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#include "math_private.h"
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static const double zero = 0.0;
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long double
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__remquol (long double x, long double y, int *quo)
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{
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int32_t ex,ep,hx,hp;
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u_int32_t sx,lx,lp;
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int cquo;
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GET_LDOUBLE_WORDS (ex, hx, lx, x);
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GET_LDOUBLE_WORDS (ep, hp, lp, p);
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sx = ex & 0x8000;
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qs = (sx ^ (ep & 0x8000)) >> 15;
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ep &= 0x7fff;
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ex &= 0x7fff;
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/* Purge off exception values. */
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if ((ep | hp | lp) == 0)
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return (x * p) / (x * p); /* p = 0 */
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if ((ex == 0x7fff) /* x not finite */
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|| ((ep == 0x7fff) /* p is NaN */
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&& ((hp | lp) != 0)))
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return (x * p) / (x * p);
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if (ep <= 0x7ffb)
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{
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x = __ieee754_fmodl (x, 8 * p); /* now x < 8p */
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if (fabsl (x) >= 4 * fabsl (p))
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cquo += 4;
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}
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if (((ex - ep) | (hx - hp) | (lx - lp)) == 0)
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{
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*quo = qs ? -1 : 1;
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return zero * x;
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}
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x = fabsl (x);
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p = fabsl (p);
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cquo = 0;
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if (x >= 2 * p)
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{
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x -= 4 * p;
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cquo += 2;
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}
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if (x >= p)
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{
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x -= 2 * p;
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++cquo;
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}
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if (ep < 0x0002)
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{
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if (x + x > p)
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{
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x -= p;
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if (x + x >= p)
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x -= p;
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}
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}
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else
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{
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long double p_half = 0.5 * p;
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if(x > p_half)
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{
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x -= p;
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if (x >= p_half)
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x -= p;
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}
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}
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*quo = qs ? -cquo : cquo;
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GET_LDOUBLE_EXP (ex, x);
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SET_LDOUBLE_EXP (x, ex ^ sx);
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return x;
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}
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weak_alias (__remquol, remquol)
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