1997-03-23 02:54:07 +01:00
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/* Return quiet nan.
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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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/* XXX The ISO C 9X standard mentions a `n-char-sequence' which is provided
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as the argument to this function but I have no clue what this means.
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Perhaps it is a description of the bits set in the mantissa. */
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#include <math.h>
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#ifdef HANDLE_TAGP
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# include <stdlib.h>
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# include <string.h>
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#else
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# include <ieee754.h>
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#endif
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long double
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Update.
1997-03-25 02:15 Ulrich Drepper <drepper@cygnus.com>
* gmon/gmon.c: Optimize a bit by using more sets of records to
write in a single writev call.
* math/math.h: Add definitions of macros __MATHCALLX and __MATHDECLX.
* math/mathcalls.h: Use __MATHCALLX for fabs, infnan, copysign,
nan, isnan, nextafter, trunc, __fpclassify and signbit to mark as
`const'.
Use __MATHDECLX for isinf and finite.
* sysdeps/generic/setenv.c [_LIBC]: Define __clearenv and make
clearenv a weak alias.
Implement complex exponential function.
* sysdeps/libm-ieee754/s_cexp.c: New file.
* sysdeps/libm-ieee754/s_cexpf.c: New file.
* sysdeps/libm-ieee754/s_cexpl.c: New file.
* sysdeps/libm-ieee754/s_nan.c: Define function as __nan and make
nan a weak alias.
* sysdeps/libm-ieee754/s_nanf.c: Likewise for nanf.
* sysdeps/libm-ieee754/s_nanl.c: Likewise for nanl.
* sysdeps/unix/sysv/linux/iovec.h: Don't use kernel header because
of type clashes. Add all definitions here.
* sysdeps/unix/sysv/linux/shmat.c: Likewise. Correct types according
to XPG4.2.
* sysdeps/unix/sysv/linux/shmdt.c: Likewise.
* sysdeps/unix/sysv/linux/msgrcv.c: Likewise.
* sysvipc/sys/shm.h (shmat, shmdt): Correct types.
* sysdeps/unix/sysv/linux/sys/kd.h: Define _LINUX_TYPES_H to avoid
use of kernel types.
1997-03-25 00:00 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/netinet/ip.h (struct ip_timestamp):
Correct typos. Reported by a sun <asun@zoology.washington.edu>.
1997-03-20 21:58 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/libm-ieee754/s_asinhl.c: Fix sign of result.
1997-03-20 16:20 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/libm-ieee754/e_atan2l.c: Fix typo.
1997-03-20 14:23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/m68k/fpu/__math.h (__logb, logb): Don't define.
* sysdeps/m68k/fpu/s_logb.c: Removed.
* sysdeps/m68k/fpu/s_logbf.c: Removed.
* sysdeps/m68k/fpu/s_logbl.c: Removed.
* sysdeps/m68k/fpu/__math.h (__ieee754_atan2, __ieee754_pow):
Don't define here.
* sysdeps/m68k/fpu/e_atan2.c: Rewritten.
* sysdeps/m68k/fpu/e_pow.c: Likewise.
* sysdeps/m68k/fpu/e_atan2f.c: Based on e_atan2.c.
* sysdeps/m68k/fpu/e_atan2l.c: Likewise.
* sysdeps/m68k/fpu/e_powf.c: Based on e_pow.c.
* sysdeps/m68k/fpu/e_powl.c: Likewise.
* sysdeps/m68k/fpu/s_log2.c: New file.
* sysdeps/m68k/fpu/s_log2f.c: New file.
* sysdeps/m68k/fpu/s_log2l.c: New file.
* sysdeps/m68k/fpu/s_exp2.c: New file.
* sysdeps/m68k/fpu/s_exp2f.c: New file.
* sysdeps/m68k/fpu/s_exp2l.c: New file.
1997-03-20 14:46 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makeconfig (all): Make sure this is always the default goal.
1997-03-20 11:09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* math/libm-test.c: Increase epsilon in many places. Fix many
typos. Allow optinal argument also for short option.
1997-03-20 11:09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* math/Makefile ($(objpfx)$(tests)): Link against libm.
1997-03-24 23:14 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-ieee754/s_fpclassifyl.c: Correct recognition of
denormalized numbers.
* sysdeps/i386/huge_val.h: Remove references to byte order macros.
Don't include <endian.h>.
1997-03-19 15:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/m68k/huge_val.h: Remove references to byte order macros.
Don't include <endian.h>.
1997-03-24 23:09 Ulrich Drepper <drepper@cygnus.com>
* inet/rcmd.c (iruserok): Use access instead of euidaccess.
1997-03-15 18:08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* math/cmathcalls.h: Remove whitespace before function name in use
of __MATHDECL macro, to make it compilable with a traditional
preprocessor.
1997-03-24 15:31 Ulrich Drepper <drepper@cygnus.com>
* configure.in: Use AC_PROG_CC instead of AC_PROG_TOOL to find
compiler.
1997-03-24 02:34 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-ieee754/s_finitel.c (__finitel): Shift return value
by 31 positions to get 0/1 result.
Patch by Joe Keane <jgk@jgk.org>.
1997-03-23 12:15 H.J. Lu <hjl@gnu.ai.mit.edu>
* posix/getopt.c (__getopt_nonoption_flags): Make it extern
to prevent from ld linking in getopt.o even if there is another
incompatible one.
* posix/getopt_init.c (__getopt_nonoption_flags): Remove extern.
1997-03-23 23:30 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* nis/nis_call.c (__do_niscall): Print message if cold start file
does not exist.
* nis/nis_file.c: Don't print error messages.
* nis/nis_local_name.c (nis_local_host): Fix pointer errors.
* nis/rpcsvc/ypclnt.h: Fix copyright and prototypes.
* nis/rpcsvc/nis.h: Likewise.
* nis/ypclnt.c: Fix prototypes.
1997-03-24 01:36 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-i387/e_scalb.S: Pop additional result before
returning.
* sysdeps/libm-i387/e_scalbf.S: Likewise.
* sysdeps/libm-i387/e_scalbl.S: Likewise.
Reported by Andreas Jaeger <aj@arthur.pfalz.de>.
* elf/rtld.c (dl_main): Set main_map->l_opencount to 1 also if
dynamic linker was called implicitly by the kernel.
Reported by Eric Youngdale <eric@andante.jic.com>.
* math/Makefile (CFLAGS-test-float.c, CFLAGS-test-double.c,
CFLAGS-test-longdouble.c): New variables. Set to -fno-inline to
prevent clever optimizations which corrupt the tests.
1997-03-23 21:33 Andreas Jaeger <aj@arthur.pfalz.de>
* math/libm-test.c (scalb_test): New function.
(sqrt_test): New function.
(scalbn_test): New function.
(ilogb_test): New function.
(main): Added calls for new test functions.
(ldexp_test): Add another test for ldexp(x,0).
1997-03-23 12:35 Andreas Jaeger <aj@arthur.pfalz.de>
* math/libm-test.c (remquo_test): Correct messages so that they
match the tests.
(copysign_test): Likewise.
1997-03-23 16:28 Ulrich Drepper <drepper@cygnus.com>
* stdio-common/Makefile (routines): Add printf_size.
* stdio-common/printf.h: Add declarations for printf_size and
printf_size_info.
* stdio-common/printf-parse.h (__printf_arginfo_table): Correct
declaration.
(parse_one_spec): Test whether __printf_function_table is not NULL
before using registered handlers and don't test
__printf_arginfo_table. Update nargs also when handler is
registered.
* stdio-common/vfprintf.c (vfprintf): Count number of specifiers
processed in fast loop.
* stdio-common/printf_size: New file.
1997-03-22 04:53 Ulgmon_out_readrich Drepper <drepper@cygnus.com>
1997-03-25 02:45:04 +01:00
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__nanl (const char *tagp)
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1997-03-23 02:54:07 +01:00
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{
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#ifdef HANDLE_TAGP
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/* If we ever should have use of the TAGP parameter we will use the
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strtod function to analyze it. */
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char buf[6 + strlen (tagp)];
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sprintf (buf, "NAN(%s)", tagp);
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return strtold (buf, NULL);
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#else
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static const union ieee854_long_double nan_value =
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{ ieee: { mantissa1: 0x1, mantissa0: 0x80000000,
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exponent: 0x7fff, negative: 0 } };
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return nan_value.d;
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#endif
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}
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Update.
1997-03-25 02:15 Ulrich Drepper <drepper@cygnus.com>
* gmon/gmon.c: Optimize a bit by using more sets of records to
write in a single writev call.
* math/math.h: Add definitions of macros __MATHCALLX and __MATHDECLX.
* math/mathcalls.h: Use __MATHCALLX for fabs, infnan, copysign,
nan, isnan, nextafter, trunc, __fpclassify and signbit to mark as
`const'.
Use __MATHDECLX for isinf and finite.
* sysdeps/generic/setenv.c [_LIBC]: Define __clearenv and make
clearenv a weak alias.
Implement complex exponential function.
* sysdeps/libm-ieee754/s_cexp.c: New file.
* sysdeps/libm-ieee754/s_cexpf.c: New file.
* sysdeps/libm-ieee754/s_cexpl.c: New file.
* sysdeps/libm-ieee754/s_nan.c: Define function as __nan and make
nan a weak alias.
* sysdeps/libm-ieee754/s_nanf.c: Likewise for nanf.
* sysdeps/libm-ieee754/s_nanl.c: Likewise for nanl.
* sysdeps/unix/sysv/linux/iovec.h: Don't use kernel header because
of type clashes. Add all definitions here.
* sysdeps/unix/sysv/linux/shmat.c: Likewise. Correct types according
to XPG4.2.
* sysdeps/unix/sysv/linux/shmdt.c: Likewise.
* sysdeps/unix/sysv/linux/msgrcv.c: Likewise.
* sysvipc/sys/shm.h (shmat, shmdt): Correct types.
* sysdeps/unix/sysv/linux/sys/kd.h: Define _LINUX_TYPES_H to avoid
use of kernel types.
1997-03-25 00:00 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/netinet/ip.h (struct ip_timestamp):
Correct typos. Reported by a sun <asun@zoology.washington.edu>.
1997-03-20 21:58 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/libm-ieee754/s_asinhl.c: Fix sign of result.
1997-03-20 16:20 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/libm-ieee754/e_atan2l.c: Fix typo.
1997-03-20 14:23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/m68k/fpu/__math.h (__logb, logb): Don't define.
* sysdeps/m68k/fpu/s_logb.c: Removed.
* sysdeps/m68k/fpu/s_logbf.c: Removed.
* sysdeps/m68k/fpu/s_logbl.c: Removed.
* sysdeps/m68k/fpu/__math.h (__ieee754_atan2, __ieee754_pow):
Don't define here.
* sysdeps/m68k/fpu/e_atan2.c: Rewritten.
* sysdeps/m68k/fpu/e_pow.c: Likewise.
* sysdeps/m68k/fpu/e_atan2f.c: Based on e_atan2.c.
* sysdeps/m68k/fpu/e_atan2l.c: Likewise.
* sysdeps/m68k/fpu/e_powf.c: Based on e_pow.c.
* sysdeps/m68k/fpu/e_powl.c: Likewise.
* sysdeps/m68k/fpu/s_log2.c: New file.
* sysdeps/m68k/fpu/s_log2f.c: New file.
* sysdeps/m68k/fpu/s_log2l.c: New file.
* sysdeps/m68k/fpu/s_exp2.c: New file.
* sysdeps/m68k/fpu/s_exp2f.c: New file.
* sysdeps/m68k/fpu/s_exp2l.c: New file.
1997-03-20 14:46 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makeconfig (all): Make sure this is always the default goal.
1997-03-20 11:09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* math/libm-test.c: Increase epsilon in many places. Fix many
typos. Allow optinal argument also for short option.
1997-03-20 11:09 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* math/Makefile ($(objpfx)$(tests)): Link against libm.
1997-03-24 23:14 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-ieee754/s_fpclassifyl.c: Correct recognition of
denormalized numbers.
* sysdeps/i386/huge_val.h: Remove references to byte order macros.
Don't include <endian.h>.
1997-03-19 15:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/m68k/huge_val.h: Remove references to byte order macros.
Don't include <endian.h>.
1997-03-24 23:09 Ulrich Drepper <drepper@cygnus.com>
* inet/rcmd.c (iruserok): Use access instead of euidaccess.
1997-03-15 18:08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* math/cmathcalls.h: Remove whitespace before function name in use
of __MATHDECL macro, to make it compilable with a traditional
preprocessor.
1997-03-24 15:31 Ulrich Drepper <drepper@cygnus.com>
* configure.in: Use AC_PROG_CC instead of AC_PROG_TOOL to find
compiler.
1997-03-24 02:34 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-ieee754/s_finitel.c (__finitel): Shift return value
by 31 positions to get 0/1 result.
Patch by Joe Keane <jgk@jgk.org>.
1997-03-23 12:15 H.J. Lu <hjl@gnu.ai.mit.edu>
* posix/getopt.c (__getopt_nonoption_flags): Make it extern
to prevent from ld linking in getopt.o even if there is another
incompatible one.
* posix/getopt_init.c (__getopt_nonoption_flags): Remove extern.
1997-03-23 23:30 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* nis/nis_call.c (__do_niscall): Print message if cold start file
does not exist.
* nis/nis_file.c: Don't print error messages.
* nis/nis_local_name.c (nis_local_host): Fix pointer errors.
* nis/rpcsvc/ypclnt.h: Fix copyright and prototypes.
* nis/rpcsvc/nis.h: Likewise.
* nis/ypclnt.c: Fix prototypes.
1997-03-24 01:36 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/libm-i387/e_scalb.S: Pop additional result before
returning.
* sysdeps/libm-i387/e_scalbf.S: Likewise.
* sysdeps/libm-i387/e_scalbl.S: Likewise.
Reported by Andreas Jaeger <aj@arthur.pfalz.de>.
* elf/rtld.c (dl_main): Set main_map->l_opencount to 1 also if
dynamic linker was called implicitly by the kernel.
Reported by Eric Youngdale <eric@andante.jic.com>.
* math/Makefile (CFLAGS-test-float.c, CFLAGS-test-double.c,
CFLAGS-test-longdouble.c): New variables. Set to -fno-inline to
prevent clever optimizations which corrupt the tests.
1997-03-23 21:33 Andreas Jaeger <aj@arthur.pfalz.de>
* math/libm-test.c (scalb_test): New function.
(sqrt_test): New function.
(scalbn_test): New function.
(ilogb_test): New function.
(main): Added calls for new test functions.
(ldexp_test): Add another test for ldexp(x,0).
1997-03-23 12:35 Andreas Jaeger <aj@arthur.pfalz.de>
* math/libm-test.c (remquo_test): Correct messages so that they
match the tests.
(copysign_test): Likewise.
1997-03-23 16:28 Ulrich Drepper <drepper@cygnus.com>
* stdio-common/Makefile (routines): Add printf_size.
* stdio-common/printf.h: Add declarations for printf_size and
printf_size_info.
* stdio-common/printf-parse.h (__printf_arginfo_table): Correct
declaration.
(parse_one_spec): Test whether __printf_function_table is not NULL
before using registered handlers and don't test
__printf_arginfo_table. Update nargs also when handler is
registered.
* stdio-common/vfprintf.c (vfprintf): Count number of specifiers
processed in fast loop.
* stdio-common/printf_size: New file.
1997-03-22 04:53 Ulgmon_out_readrich Drepper <drepper@cygnus.com>
1997-03-25 02:45:04 +01:00
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weak_alias (__nanl, nanl)
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