53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
|
/* Copyright (C) 2012-2022 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
|
||
|
|
|
||
|
|
/* The Altera specified Nios II hardware FPU does not support exceptions,
|
||
|
|
nor does the software floating-point support. */
|
||
|
|
#define FE_ALL_EXCEPT 0
|
||
|
|
|
||
|
|
/* Nios II supports only round-to-nearest. The software
|
||
|
|
floating-point support also acts this way. */
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
__FE_UNDEFINED = 0,
|
||
|
|
|
||
|
|
FE_TONEAREST =
|
||
|
|
#define FE_TONEAREST 1
|
||
|
|
FE_TONEAREST,
|
||
|
|
};
|
||
|
|
|
||
|
|
/* 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 *) -1)
|
||
|
|
|
||
|
|
#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
|