mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 04:50:07 +00:00
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* Copyright (C) 1997-2024 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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _FENV_H
|
|
# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
|
|
#endif
|
|
|
|
|
|
/* Here should be the exception be defined:
|
|
FE_INVALID
|
|
FE_DIVBYZERO
|
|
FE_OVERFLOW
|
|
FE_UNDERFLOW
|
|
FE_INEXACT
|
|
We define no macro which signals no exception is supported. */
|
|
|
|
#define FE_ALL_EXCEPT 0
|
|
|
|
|
|
/* Here should the rounding modes be defined:
|
|
FE_TONEAREST
|
|
FE_DOWNWARD
|
|
FE_UPWARD
|
|
FE_TOWARDZERO
|
|
We define no macro which signals no rounding mode is selectable. */
|
|
|
|
|
|
/* Type representing exception flags. */
|
|
typedef unsigned int fexcept_t;
|
|
|
|
|
|
/* Type representing floating-point environment. */
|
|
typedef struct
|
|
{
|
|
fexcept_t __excepts;
|
|
/* XXX I don't know what else we should save. */
|
|
}
|
|
fenv_t;
|
|
|
|
/* If the default argument is used we use this value. */
|
|
#define FE_DFL_ENV ((const fenv_t *) -1l)
|
|
|
|
#if __GLIBC_USE (IEC_60559_BFP_EXT_C2X)
|
|
/* Type representing floating-point control modes. */
|
|
typedef unsigned int femode_t;
|
|
|
|
/* Default floating-point control modes. */
|
|
# define FE_DFL_MODE ((const femode_t *) -1L)
|
|
#endif
|