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/* Floating point environment. ARC version.
Copyright (C) 2020 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
enum
{
FE_INVALID =
# define FE_INVALID (0x01)
FE_INVALID,
FE_DIVBYZERO =
# define FE_DIVBYZERO (0x02)
FE_DIVBYZERO,
FE_OVERFLOW =
# define FE_OVERFLOW (0x04)
FE_OVERFLOW,
FE_UNDERFLOW =
# define FE_UNDERFLOW (0x08)
FE_UNDERFLOW,
FE_INEXACT =
# define FE_INEXACT (0x10)
FE_INEXACT
};
# define FE_ALL_EXCEPT \
(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW | FE_INEXACT)
enum
{
FE_TOWARDZERO =
# define FE_TOWARDZERO (0x0)
FE_TOWARDZERO,
FE_TONEAREST =
# define FE_TONEAREST (0x1) /* default */
FE_TONEAREST,
FE_UPWARD =
# define FE_UPWARD (0x2)
FE_UPWARD,
FE_DOWNWARD =
# define FE_DOWNWARD (0x3)
FE_DOWNWARD
};
typedef unsigned int fexcept_t;
typedef struct
{
unsigned int __fpcr;
unsigned int __fpsr;
} fenv_t;
/* If the default argument is used we use this value. */
#define FE_DFL_ENV ((const fenv_t *) -1)
#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
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