mirror of
https://sourceware.org/git/glibc.git
synced 2024-10-04 13:08:00 +00:00
dd33e89fb2
1997-04-17 16:55 Ulrich Drepper <drepper@cygnus.com> * misc/libgen.h: Change prototype for of basename to XPG variant. * stdlib/Makefile (routines): Add xpg_basename. * stdlib/basename.c: New file. * string/string.h: Don't declare basename function if basename macro is available. 1997-04-16 17:33 Miles Bader <miles@gnu.ai.mit.edu> * login/utmp_file.c (proc_utmp_eq): Only use ut_id field if valid. 1997-04-15 12:47 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/fpu/fclrexcpt.c: New file. * sysdeps/m68k/fpu/fenvbits.h: New file. * sysdeps/m68k/fpu/fegetenv.c: New file. * sysdeps/m68k/fpu/fegetround.c: New file. * sysdeps/m68k/fpu/fesetenv.c: New file. * sysdeps/m68k/fpu/fesetround.c: New file. * sysdeps/m68k/fpu/feupdateenv.c: New file. * sysdeps/m68k/fpu/fgetexcptflg.c: New file. * sysdeps/m68k/fpu/fraiseexcpt.c: New file. * sysdeps/m68k/fpu/fsetexcptflg.c: New file. * sysdeps/m68k/fpu/ftestexcept.c: New file. * sysdeps/m68k/fpu/mathbits.h: New file. * sysdeps/m68k/fpu/s_remquo.c: New file. * sysdeps/m68k/fpu/s_remquol.c: New file. * sysdeps/m68k/fpu/s_remquof.c: New file. * sysdeps/libm-ieee754/s_roundl.c: Restore integer bit when mantissa overflows into exponent. Fix priority of >> vs +. * math/libm-test.c (basic_tests): Use the appropriate isnan and isinf function to test the value of the nan function. 1997-04-15 13:40 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-i387/s_finite.S: Fix typo. * sysdeps/i386/fpu/__math.h: Add optimized versions of isgreater, isgreaterequal, isless, islessequal, islessgreater, and isunordered.
81 lines
2.4 KiB
C
81 lines
2.4 KiB
C
/* Copyright (C) 1997 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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 file should never be included directly. */
|
|
|
|
#ifndef _FENVBITS_H
|
|
#define _FENVBITS_H 1
|
|
|
|
/* Define bits representing the exception. We use the bit positions of
|
|
the appropriate bits in the FPSR Accrued Exception Byte. */
|
|
enum
|
|
{
|
|
FE_INEXACT = 1 << 3,
|
|
#define FE_INEXACT FE_INEXACT
|
|
FE_DIVBYZERO = 1 << 4,
|
|
#define FE_DIVBYZERO FE_DIVBYZERO
|
|
FE_UNDERFLOW = 1 << 5,
|
|
#define FE_UNDERFLOW FE_UNDERFLOW
|
|
FE_OVERFLOW = 1 << 6,
|
|
#define FE_OVERFLOW FE_OVERFLOW
|
|
FE_INVALID = 1 << 7
|
|
#define FE_INVALID FE_INVALID
|
|
};
|
|
|
|
#define FE_ALL_EXCEPT \
|
|
(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
|
|
|
|
/* The m68k FPU supports all of the four defined rounding modes. We use
|
|
the bit positions in the FPCR Mode Control Byte as the values for the
|
|
appropriate macros. */
|
|
enum
|
|
{
|
|
FE_TONEAREST = 0,
|
|
#define FE_TONEAREST FE_TONEAREST
|
|
FE_TOWARDSZERO = 1 << 4,
|
|
#define FE_TOWARDSZERO FE_TOWARDSZERO
|
|
FE_DOWNWARD = 2 << 4,
|
|
#define FE_DOWNWARD FE_DOWNWARD
|
|
FE_UPWARD = 3 << 4
|
|
#define FE_UPWARD FE_UPWARD
|
|
};
|
|
|
|
|
|
/* Type representing exception flags. */
|
|
typedef unsigned int fexcept_t;
|
|
|
|
|
|
/* Type representing floating-point environment. This structure
|
|
corresponds to the layout of the block written by `fmovem'. */
|
|
typedef struct
|
|
{
|
|
fexcept_t control_register;
|
|
fexcept_t status_register;
|
|
}
|
|
fenv_t;
|
|
|
|
/* If the default argument is used we use this value. */
|
|
#define FE_DFL_ENV ((fenv_t *) -1)
|
|
|
|
#ifdef __USE_GNU
|
|
/* Floating-point environment where none of the exceptions are masked. */
|
|
# define FE_NOMASK_ENV ((fenv_t *) -2)
|
|
#endif
|
|
|
|
#endif /* fenvbits.h */
|