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64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* Copyright (C) 1997-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _FENV_H
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# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
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#endif
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/* Here should be the exception be defined:
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FE_INVALID
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FE_DIVBYZERO
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FE_OVERFLOW
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FE_UNDERFLOW
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FE_INEXACT
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We define no macro which signals no exception is supported. */
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#define FE_ALL_EXCEPT 0
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/* Here should the rounding modes be defined:
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FE_TONEAREST
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FE_DOWNWARD
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FE_UPWARD
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FE_TOWARDZERO
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We define no macro which signals no rounding mode is selectable. */
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/* Type representing exception flags. */
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typedef unsigned int fexcept_t;
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/* Type representing floating-point environment. */
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typedef struct
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{
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fexcept_t __excepts;
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/* XXX I don't know what else we should save. */
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}
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fenv_t;
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/* If the default argument is used we use this value. */
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#define FE_DFL_ENV ((const fenv_t *) -1l)
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#if __GLIBC_USE (IEC_60559_BFP_EXT)
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/* Type representing floating-point control modes. */
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typedef unsigned int femode_t;
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/* Default floating-point control modes. */
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# define FE_DFL_MODE ((const femode_t *) -1L)
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#endif
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