update from main archive 970304
1997-03-04 04:31 Ulrich Drepper <drepper@cygnus.com>
* Makerules: Add rules to handle versioning.
* config.h.in (DO_VERSIONING): New macro.
* config.make.in (versioning): New variable.
* configure.in: Add checks for .symver directive in gas and
--version-script option to ld. Define DO_VERSIONING and
versioning if appropriate.
* math/Makefile (routines): Add s_signbit, s_fpclassify, s_fmax,
s_fmin, and s_fdim.
* math/math.h: Define ISO C 9X constants, macros and functions.
* math/mathcalls.h: Likewise.
* sysdeps/libm-ieee754/s_fdim.c: New file.
* sysdeps/libm-ieee754/s_fdimf.c: New file.
* sysdeps/libm-ieee754/s_fdiml.c: New file.
* sysdeps/libm-ieee754/s_fmax.c: New file.
* sysdeps/libm-ieee754/s_fmaxf.c: New file.
* sysdeps/libm-ieee754/s_fmaxl.c: New file.
* sysdeps/libm-ieee754/s_fmin.c: New file.
* sysdeps/libm-ieee754/s_fminf.c: New file.
* sysdeps/libm-ieee754/s_fminl.c: New file.
* sysdeps/libm-ieee754/s_fpclassify.c: New file.
* sysdeps/libm-ieee754/s_fpclassifyf.c: New file.
* sysdeps/libm-ieee754/s_fpclassifyl.c: New file.
* sysdeps/libm-ieee754/s_signbit.c: New file.
* sysdeps/libm-ieee754/s_signbitf.c: New file.
* sysdeps/libm-ieee754/s_signbitl.c: New file.
* stdio-common/printf_fphex.c: Correct printing of decimal point
character.
Simplify conversion of mantissa to string.
* stdio-common/vfscanf.c: Handle %A format.
Optimize termination of floating-point scanning.
* stdio-common/tstscanf.c (main): Add new test to scanf to test
scanning float values with given width.
* stdlib/strtod.c: Add handling of floating-point numbers in
hexadecimal notation.
* stdlib/stdlib.h: Use __USE_ISOC9X feature macro for new long long
functions.
Pretty print #if directives.
* string/string.h: Pretty print #if directives.
* sysdeps/ieee754/dbl2mpn.c: Update copyright.
* sysdeps/ieee754/ldbl2mpn.c: Likewise.
* sysdeps/ieee754/mpn2dbl.c: Likewise.
* sysdeps/ieee754/mpn2flt.c: Likewise.
* sysdeps/ieee754/mpn2ldbl.c: Likewise.
* sysdeps/unix/sysv/linux/poll.c: Implement poll function by
falling back to select-based implementation if syscall isn't
available.
* sysdeps/unix/sysv/linux/syscalls.list: Add s_poll.
* time/leapseconds: Update from tzdata1997b.
* time/zic.c: Update from tzcode1997b.
1997-03-01 15:08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* time/Makefile $(tzfiles:%=$(objpfx)z.%): Remove unneeded
depedencies between installed $(tzlinks) and $(tzbases) files.
1997-03-01 14:27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* math/math.h: Make compatible with traditional preprocessor;
requires carefull placement of whitespace in macro arguments.
Use __CONCAT instead of ##.
Declare long double functions only if __STDC__ or __GNUC__.
* math/mathcall.h: Avoid whitespace before argument of macro call
that is used as function name.
* sysdeps/m68k/fpu/__math.h: Use __CONCAT instead of ##.
(__m81_u, __m81_inline): Depend on __LIBC_M81_MATH_INLINES instead
of __NO_M81_MATH_INLINES.
[!__LIBC_M81_MATH_INLINES]: Don't define internal functions
starting with __ieee754.
[!__NO_MATH_INLINES && __OPTIMIZE__]: Define user visible
functions as inlines.
(__m81_defun): Put __attribute__ between return type and function
name.
* math/math.h: Include <__math.h> also if __LIBC_M81_MATH_INLINES
is defined.
* sysdeps/m68k/fpu/e_acos.c: Define __LIBC_M81_MATH_INLINES
instead of __NO_M81_MATH_INLINES.
* sysdeps/m68k/fpu/e_fmod.c: Likewise.
* sysdeps/m68k/fpu/k_cos.c: Likewise.
* sysdeps/m68k/fpu/k_sin.c: Likewise.
* sysdeps/m68k/fpu/k_tan.c: Likewise.
* sysdeps/m68k/fpu/s_atan.c: Likewise. De-ANSI-declify.
* sysdeps/m68k/fpu/s_frexp.c: Likewise.
* sysdeps/m68k/fpu/s_ilogb.c: Likewise.
* sysdeps/m68k/fpu/s_isinf.c: Likewise.
* sysdeps/m68k/fpu/s_modf.c: Likewise.
* sysdeps/m68k/fpu/s_scalbn.c: Likewise.
1997-02-27 21:51 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makefile (tests): Cope with $PATH not including the current
directory.
1997-02-27 18:04 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/unix/Makefile ($(common-objpfx)mk-local_lim): Use
$(common-objdir-compile).
($(common-objpfx)make-ioctls): Likewise.
(mk-local_lim-CFLAGS): Set this instead of local_lim-CFLAGS.
($(common-objpfx)sys/param.h): Use $(make-target-directory).
($(addprefix $(common-objpfx),$(sys/param.h-includes))):
Likewise.
($(common-objpfx)sys/syscall.h): Likewise.
($(common-objpfx)local_lim.h): Let make deal with command
failure.
($(common-objpfx)param.h.dep): Use temporary file and update
target atomically.
($(common-objpfx)errnos): Avoid the Useless Use of cat Award.
(include $(common-objpfx)param.h.dep): Ignore error.
* sysdeps/posix/Makefile ($(common-objpfx)mk-stdiolim): Use
$(common-objdir-compile).
(mk-stdiolim-CFLAGS): Renamed from cded-objdir-includes, use
$(shell pwd) instead of $$cwd.
* sysdeps/generic/Makefile ($(common-objpfx)det_endian): Use
$(common-objdir-compile).
($(objpfx)make_siglist): Use $(native-compile).
(make_siglist-CFLAGS): New variable.
* Makerules (ALL_BUILD_CFLAGS): Renamed from BUILD_CFLAGS, leaving
the old name for the user to pass additional flags to the host
compiler. Fix reference to config header.
(native-compile, common-objdir-compile): Rewritten to make more
generally usable.
* sysdeps/unix/sysv/sysv4/solaris2/Makefile: Set ALL_BUILD_CFLAGS
instead of BUILD_CFLAGS.
* sysvips/sys/ipc.h: Warn if needed feature select macro are not
defined.
1997-02-27 17:11 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sunrpc/Makefile ($(objpfx)rpc-proto.d, $(objpfx)rpc-proto.c):
New rules to generate dependencies for the RPC service objects.
1997-02-27 16:26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* argp/argp-parse.c (parser_finalize): Always set *END_INDEX if
supplied.
1997-02-28 03:27 Ulrich Drepper <drepper@cygnus.com>
* stdlib/strtod.c (STRTOF): Make sure return value is large enough
so that clearing second word is necessary.
* sysdeps/unix/sysv/linux/netinet/in_systm.h: Don't use kernel
header since it is wrong for 64 bit systems.
Patch by a sun <asun@zoology.washington.edu>.
1997-02-27 10:34:11 Richard Henderson <rth@tamu.edu>
* sysdeps/unix/sysv/linux/alpha/brk.S: Support both the Linux/i386
and OSF/1 style brk syscalls. We may want to change Linux/Alpha
for the benefit of running foreign binaries.
1997-03-01 20:21 Miles Bader <miles@gnu.ai.mit.edu>
1997-02-25 19:42 Miles Bader <miles@gnu.ai.mit.edu>
1997-03-04 06:53:28 +01:00
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/* Return positive difference between arguments.
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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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float
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__fdimf (float x, float y)
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{
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int clsx = fpclassify (x);
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int clsy = fpclassify (y);
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if (clsx == FP_NAN || clsy == FP_NAN
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|| (y < 0 && clsx == FP_INFINITE && clsy == FP_INFINITE))
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/* Raise invalid flag. */
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return x - y;
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return x < y ? 0 : x - y;
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}
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weak_alias (__fdimf, fdimf)
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