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authorUlrich Drepper <drepper@redhat.com>1998-02-15 19:31:34 +0000
committerUlrich Drepper <drepper@redhat.com>1998-02-15 19:31:34 +0000
commit14ea22e96c0b6fce54e2451c69c96c429177b62c (patch)
tree4fa8964f6ae07342ee56de737e944c60f6a4cf63 /math
parentdc30f461575342ffeb6c0f2d5931493c1c3a91c0 (diff)
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Update.
1998-02-15 Ulrich Drepper <drepper@cygnus.com> * nss/nsswitch.c (__nss_lookup): Return 1 if this was the last module. * nss/getXXent_r.c: If no more module is found don't try to call setXXent functions but leave unsuccessfully. * malloc/obstack.h: Cleanups. * sysdeps/wordsize-32/stdint.h: New file. * sysdeps/wordsize-64/stdint.h: New file. * sysdeps/generic/stdint.h: New file. * sysdeps/wordsize-32/inttypes.h: Adopt to use stdint.h. * sysdeps/wordsize-64/inttypes.h: Likewise. * stdlib/Makefile (headers): Add stdint.h. 1998-02-03 Paul Eggert <eggert@twinsun.com> * malloc/obstack.h (PTR_INT_TYPE): Use __PTRDIFF_TYPE__ if available. 1998-02-13 17:59 Zack Weinberg <zack@rabi.phys.columbia.edu> * timezone: New directory. * time/README, time/africa, time/antarctica, time/asia, time/australasia, time/backward, time/checktab.awk, time/etcetera, time/europe, time/factory, time/ialloc.c, time/iso3166.tab, time/leapseconds, time/northamerica, time/pacificnew, time/private.h, time/scheck.c, time/solar87, time/solar88, time/solar89, time/southamerica, time/systemv, time/test-tz.c, time/tzfile.h, time/tzselect.ksh, time/yearistype, time/zdump.c, time/zic.c, time/zone.tab: Moved to timezone. * time/tzfile.c: Include tzfile.h from timezone subdir. * time/tzset.c: Likewise. * time/Makefile: Cut out all code relating to timezones... * timezone/Makefile: ...and paste it in here. * Makefile (subdirs): Add timezone. 1998-02-13 18:45 H.J. Lu <hjl@gnu.org> * libc.map (_sys_nerr): Added. * sysdeps/unix/sysv/linux/errlist.c (_sys_nerr): Make it versioned symbol. 1998-02-15 17:16 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/linux/bits/socket.h: Define PF_KEY and pseudo_AF_KEY instead of pseudo_PF_KEY and AF_KEY. Reported by Craig Metz <cmetz@inner.net>. 1998-01-22 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * nss/nss_files/files-parse.c (LOOKUP_NAME_CASE): Use __strcasecmp instead of strcasecmp. * nss/nss_files/files-alias.c (get_next_alias): Likewise. * wctype/wctype.h (_ISwbit): Avoid warning with gcc before 2.8. 1998-02-15 16:55 Ulrich Drepper <drepper@cygnus.com> * socket/sys/socket.h (setsockopt): Make OPTVAL parameter const. Patch by Dean Gaudet <dgaudet@arctic.org>. 1998-02-15 16:53 Ulrich Drepper <drepper@cygnus.com> * sysdeps/generic/Dist: Add getresgid.c and getresuid.c. 1998-02-15 10:49 Zack Weinberg <zack@rabi.phys.columbia.edu> * sysdeps/unix/sysv/linux/poll.c: If compiled against a kernel with no poll syscall, just include the BSD version. * sysdeps/unix/sysv/linux/getresuid.c: If compiled against a kernel without the syscall, include the stub version. * sysdeps/unix/sysv/linux/getresgid.c: Likewise. * sysdeps/generic/getresuid.c: New file. * sysdeps/generic/getresgid.c: New file. 1998-02-15 Ulrich Drepper <drepper@cygnus.com> * stdio-common/vfscanf.c: Correct last change a bit.
Diffstat (limited to 'math')
-rw-r--r--math/test-reduce.c207
1 files changed, 0 insertions, 207 deletions
diff --git a/math/test-reduce.c b/math/test-reduce.c
deleted file mode 100644
index 5149ead..0000000
--- a/math/test-reduce.c
+++ /dev/null
@@ -1,207 +0,0 @@
-/* Copyright (C) 1997 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Geoffrey Keating <Geoff.Keating@anu.edu.au>, 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. */
-
-/* This is a generic program for comparing two precisions of a one-input
- mathematical function. It is amazingly good at detecting when GCC
- folds constants improperly. */
-
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-#include <math.h>
-#include <ieee754.h>
-#include <fenv.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-
-#define TSMALL float
-#define RSMALL(rfun) ({ unsigned rnum = (rfun); *(float *) &rnum; })
-#define TBIG double
-#define XDIFF (24)
-#define REDUCE(x) \
- ({ union ieee754_float u = { x }; u.ieee.exponent = 0x80; x = u.f; })
-#define ABS(x) fabs(x)
-
-#define string_0(x) #x
-#define string_1(x) string_0(x)
-#define TBIG_NAME string_1(TBIG)
-#define TSMALL_NAME string_1(TSMALL)
-
-#define R_NEAREST 1
-#define R_ZERO 2
-#define R_UP 4
-#define R_DOWN 8
-#define R_ALL (R_NEAREST|R_ZERO|R_UP|R_DOWN)
-static fenv_t rmodes[4];
-static const char * const rmnames[4] =
-{ "near","zero","+Inf","-Inf" };
-
-static int quiet = 0;
-
-#ifdef FE_ALL_INVALID
-static const int invalid_exceptions = (FE_ALL_INVALID
- | FE_INVALID | FE_DIVBYZERO);
-#else
-static const int invalid_exceptions = (FE_INVALID | FE_DIVBYZERO);
-#endif
-
-static int
-checkit (char *fname,
- TSMALL (*fsmall) (TSMALL), TBIG (*fbig) (TBIG),
- unsigned smalltries, unsigned largetries)
-{
- unsigned int i, nerrors = 0, nwarn;
-
- int tryone (TSMALL fval)
- {
- int rmode;
- int excepts, exceptsb;
- TSMALL fres;
- TBIG fvalb, fresb, diff;
- char warn;
-
- fvalb = (TBIG) fval;
-
- for (rmode = 0; rmode < 4; ++rmode)
- {
- fesetenv (rmodes + rmode);
- fres = fsmall (fval);
- excepts = fetestexcept (invalid_exceptions);
- fesetenv (rmodes + rmode);
- fresb = fbig (fvalb);
- exceptsb = fetestexcept (invalid_exceptions);
-
- if (excepts != exceptsb)
- {
- unsigned char *fvp = (unsigned char *) &fval;
- size_t j;
-
- printf ("%s(", fname);
- for (j = 0; j < sizeof (TSMALL); j++)
- printf ("%02x", fvp[j]);
- printf ("),%s: exceptions %s: %08x, %s: %08x\n",
- rmnames[rmode],
- TBIG_NAME, exceptsb, TSMALL_NAME, excepts);
- if (++nerrors > 10)
- return 1;
- }
-
- diff = ABS (fres - (TSMALL) fresb);
- if (fres == (TSMALL) fresb
- || isnan (fres) && isnan (fresb)
- || logb (fresb) - logb (diff) < XDIFF - 1)
- continue;
-
- if (logb (fresb) - logb (diff) < XDIFF)
- {
- if (++nwarn > 10 || quiet)
- continue;
- warn = 'w';
- }
- else
- {
- if (++nerrors > 10)
- return 1;
- warn = 'e';
- }
-
- {
- TSMALL fresbs = (TSMALL) fresb;
- unsigned char *fvp = (unsigned char *) &fval;
- unsigned char *frp = (unsigned char *) &fres;
- unsigned char *frpb = (unsigned char *) &fresb;
- unsigned char *frpbs = (unsigned char *) &fresbs;
- size_t j;
-
- printf ("%s(",fname);
- for (j = 0; j < sizeof (TSMALL); ++j)
- printf ("%02x", fvp[j]);
- printf ("),%s: %s ", rmnames[rmode], TBIG_NAME);
- for (j = 0; j < sizeof (TBIG); ++j)
- printf ("%02x", frpb[j]);
- printf (" (");
- for (j = 0; j < sizeof (TSMALL); ++j)
- printf ("%02x", frpbs[j]);
- printf ("), %s ", TSMALL_NAME);
- for (j = 0; j < sizeof (TSMALL); ++j)
- printf ("%02x", frp[j]);
- printf (" %c\n", warn);
- }
- }
- return 0;
- }
-
- nwarn = 0;
- for (i = 0; i < smalltries; i++)
- {
- TSMALL fval;
-
- fval = RSMALL (rand () ^ rand () << 16);
- REDUCE (fval);
- if (tryone (fval))
- break;
- }
-
- printf ("%s-small: %d errors, %d (%0.2f%%) inaccuracies\n",
- fname, nerrors, nwarn,
- nwarn * 0.25 / ((double) smalltries));
-
- nwarn = 0;
- for (i = 0; i < largetries; ++i)
- {
- TSMALL fval;
-
- fval = RSMALL (rand () ^ rand () << 16);
- if (tryone (fval))
- break;
- }
-
- printf ("%s-large: %d errors, %d (%0.2f%%) inaccuracies\n",
- fname, nerrors, nwarn,
- nwarn * 0.25 / ((double) largetries));
- return nerrors == 0;
-}
-
-int
-main (void)
-{
- int r;
-
- _LIB_VERSION = _IEEE_;
-
- /* Set up environments for rounding modes. */
- fesetenv (FE_DFL_ENV);
- fesetround (FE_TONEAREST);
- fegetenv (rmodes + 0);
- fesetround (FE_TOWARDSZERO);
- fegetenv (rmodes + 1);
- fesetround (FE_UPWARD);
- fegetenv (rmodes + 2);
- fesetround (FE_DOWNWARD);
- fegetenv (rmodes + 3);
-
- /* Seed the RNG. */
- srand (time (0));
-
- /* Do it. */
- r = checkit ("exp2", exp2f, exp2, 1 << 20, 1 << 15);
- r &= checkit ("exp", expf, exp, 1 << 20, 1 << 15);
- return r ? 0 : 1;
-}