mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-14 15:20:04 +00:00
70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
/* Floating point environment, OpenRISC version.
|
|
Copyright (C) 2022-2024 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
|
|
|
|
/* Define bits representing exceptions in the FPCSR status word. */
|
|
enum
|
|
{
|
|
FE_OVERFLOW =
|
|
#define FE_OVERFLOW (1 << 3)
|
|
FE_OVERFLOW,
|
|
FE_UNDERFLOW =
|
|
#define FE_UNDERFLOW (1 << 4)
|
|
FE_UNDERFLOW,
|
|
FE_INEXACT =
|
|
#define FE_INEXACT (1 << 8)
|
|
FE_INEXACT,
|
|
FE_INVALID =
|
|
#define FE_INVALID (1 << 9)
|
|
FE_INVALID,
|
|
FE_DIVBYZERO =
|
|
#define FE_DIVBYZERO (1 << 11)
|
|
FE_DIVBYZERO,
|
|
};
|
|
|
|
/* All supported exceptions. */
|
|
#define FE_ALL_EXCEPT \
|
|
(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW | FE_INEXACT)
|
|
|
|
/* Define bits representing rounding modes in the FPCSR Rmode field. */
|
|
#define FE_TONEAREST (0x0 << 1)
|
|
#define FE_TOWARDZERO (0x1 << 1)
|
|
#define FE_UPWARD (0x2 << 1)
|
|
#define FE_DOWNWARD (0x3 << 1)
|
|
|
|
/* Type representing exception flags. */
|
|
typedef unsigned int fexcept_t;
|
|
|
|
/* Type representing floating-point environment. */
|
|
typedef unsigned int 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)
|
|
/* 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
|