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me-no-dev
2016-10-06 14:21:30 +03:00
committed by Ivan Grokhotkov
parent 668acc2c08
commit 5f3a205955
657 changed files with 170176 additions and 0 deletions
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tools/sdk/include/newlib/fenv.h Normal file
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/* Copyright (c) 2011 Tensilica Inc. ALL RIGHTS RESERVED.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
TENSILICA INCORPORATED BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
OF THE POSSIBILITY OF SUCH DAMAGE. */
#ifndef _FENV_H
#define _FENV_H
#ifdef __cplusplus
extern "C" {
#endif
typedef unsigned long fenv_t;
typedef unsigned long fexcept_t;
#define FE_DIVBYZERO 0x08
#define FE_INEXACT 0x01
#define FE_INVALID 0x10
#define FE_OVERFLOW 0x04
#define FE_UNDERFLOW 0x02
#define FE_ALL_EXCEPT \
(FE_DIVBYZERO | \
FE_INEXACT | \
FE_INVALID | \
FE_OVERFLOW | \
FE_UNDERFLOW)
#define FE_DOWNWARD 0x3
#define FE_TONEAREST 0x0
#define FE_TOWARDZERO 0x1
#define FE_UPWARD 0x2
#define FE_DFL_ENV ((const fenv_t *) 0)
int feclearexcept(int);
int fegetexceptflag(fexcept_t *, int);
int feraiseexcept(int);
int fesetexceptflag(const fexcept_t *, int);
int fetestexcept(int);
int fegetround(void);
int fesetround(int);
int fegetenv(fenv_t *);
int feholdexcept(fenv_t *);
int fesetenv(const fenv_t *);
int feupdateenv(const fenv_t *);
/* glibc extensions */
int feenableexcept(int excepts);
int fedisableexcept(int excepts);
int fegetexcept(void);
#define _FE_EXCEPTION_FLAGS_OFFSET 7
#define _FE_EXCEPTION_FLAG_MASK (FE_ALL_EXCEPT << _FE_EXCEPTION_FLAGS_OFFSET)
#define _FE_EXCEPTION_ENABLE_OFFSET 2
#define _FE_EXCEPTION_ENABLE_MASK (FE_ALL_EXCEPT << _FE_EXCEPTION_ENABLE_OFFSET)
#define _FE_ROUND_MODE_OFFSET 0
#define _FE_ROUND_MODE_MASK (0x3 << _FE_ROUND_MODE_OFFSET)
#define _FE_FLOATING_ENV_MASK (_FE_EXCEPTION_FLAG_MASK | _FE_EXCEPTION_ENABLE_MASK | _FE_ROUND_MODE_MASK)
#ifdef __cplusplus
}
#endif
#endif