glibc/sysdeps/s390/fpu/bits/fenv.h
Ulrich Drepper 417bafec1e Update.
* stdlib/Makefile (headers): Add bits/wchar.h.
	* sysdeps/unix/sysv/linux/i386/bits/wchar.h: New file.
	* sysdeps/generic/bits/wchar.h: New file.
	* sysdeps/generic/stdint.h: Include <bits/wchar.h>.  Use values in this
	file to define WCHAR_MIN and WCHAR_MAX.
	Change UINT*8_MAX and UIN*16_MAX value to type int.
	* wcsmbs/wchar.h: Include <bits/wchar.h>.  Use values in this
	file to define WCHAR_MIN and WCHAR_MAX.
	* sysdeps/alpha/fpu/bits/mathdef.h: Make FP_ILOGB0 and FP_ILOGBNAN
	int values.
	* sysdeps/arm/fpu/bits/mathdef.h: Likewise.
	* sysdeps/generic/bits/mathdef.h: Likewise.
	* sysdeps/i386/fpu/bits/mathdef.h: Likewise.
	* sysdeps/m68k/fpu/bits/mathdef.h: Likewise.
	* sysdeps/powerpc/fpu/bits/mathdef.h: Likewise.
	* sysdeps/sparc/fpu/bits/mathdef.h: Likewise.
	* locale/locale.h (struct lconv): Add __ prefix to the new members
	if not C99.
	* sysdeps/generic/inttypes.h: Remove unnecessary imaxabs and
	imaxdiv optimizations.
	* sysdeps/wordsize-32/lldiv.c: Add hack to make alias work.
	* sysdeps/wordsize-64/ldiv.c: Likewise.
	* sysdeps/alpha/fpu/bits/fenv.h: Change type of FE_*_ENV macros to
	const fenv_t*.
	* sysdeps/generic/bits/fenv.h: Likewise.
	* sysdeps/i386/fpu/bits/fenv.h: Likewise.
	* sysdeps/ia64/bits/fenv.h: Likewise.
	* sysdeps/m68k/fpu/bits/fenv.h: Likewise.
	* sysdeps/mips/bits/fenv.h: Likewise.
	* sysdeps/s390/fpu/bits/fenv.h: Likewise.
	* sysdeps/sparc/fpu/bits/fenv.h: Likewise.
	Reported by Joseph S. Myers <jsm28@cam.ac.uk>.

	* catgets/open_catalog.c: Likewise.
2000-09-01 06:39:10 +00:00

83 lines
2.6 KiB
C

/* Copyright (C) 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
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. */
#ifndef _FENV_H
# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
#endif
/* Define bits representing the exception. We use the bit positions
of the appropriate bits in the FPU control word. */
enum
{
FE_INVALID = 0x80,
#define FE_INVALID FE_INVALID
FE_DIVBYZERO = 0x40,
#define FE_DIVBYZERO FE_DIVBYZERO
FE_OVERFLOW = 0x20,
#define FE_OVERFLOW FE_OVERFLOW
FE_UNDERFLOW = 0x10,
#define FE_UNDERFLOW FE_UNDERFLOW
FE_INEXACT = 0x08
#define FE_INEXACT FE_INEXACT
};
/* We dont use the y bit of the DXC in the floating point control register
as glibc has no FE encoding for fe inexact incremented
or fe inexact truncated.
We currently use the flag bits in the fpc
as these are sticky for feholdenv & feupdatenv as it is defined
in the HP Manpages. */
#define FE_ALL_EXCEPT \
(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
enum
{
FE_TONEAREST = 0,
#define FE_TONEAREST FE_TONEAREST
FE_DOWNWARD = 0x3,
#define FE_DOWNWARD FE_DOWNWARD
FE_UPWARD = 0x2,
#define FE_UPWARD FE_UPWARD
FE_TOWARDZERO = 0x1
#define FE_TOWARDZERO FE_TOWARDZERO
};
/* Type representing exception flags. */
typedef unsigned int fexcept_t; /* size of fpc */
/* Type representing floating-point environment. This function corresponds
to the layout of the block written by the `fstenv'. */
typedef struct
{
fexcept_t fpc;
void *ieee_instruction_pointer;
/* failing instruction for ieee exceptions */
} fenv_t;
/* If the default argument is used we use this value. */
#define FE_DFL_ENV ((__const fenv_t *) -1)
#ifdef __USE_GNU
/* Floating-point environment where none of the exceptions are masked. */
# define FE_NOMASK_ENV ((__const fenv_t *) -2)
#endif