41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/* Copyright (C) 1999, 2000 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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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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/* Define bits representing the exception. We use the bit positions of
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the appropriate bits in the FPSR... (Tahoe EAS 2.4 5-4)*/
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enum
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{
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FE_INEXACT = 1UL << 5,
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#define FE_INEXACT FE_INEXACT
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FE_UNDERFLOW = 1UL << 4,
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#define FE_UNDERFLOW FE_UNDERFLOW
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FE_OVERFLOW = 1UL << 3,
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#define FE_OVERFLOW FE_OVERFLOW
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FE_DIVBYZERO = 1UL << 2,
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#define FE_DIVBYZERO FE_DIVBYZERO
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FE_UNNORMAL = 1UL << 1,
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#define FE_UNNORMAL FE_UNNORMAL
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FE_INVALID = 1UL << 0,
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#define FE_INVALID FE_INVALID
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FE_ALL_EXCEPT =
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(FE_INEXACT | FE_UNDERFLOW | FE_OVERFLOW | FE_DIVBYZERO | FE_UNNORMAL | FE_INVALID)
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#define FE_ALL_EXCEPT FE_ALL_EXCEPT
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};
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enum
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{
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FE_TOWARDZERO = 3,
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#define FE_TOWARDZERO FE_TOWARDZERO
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FE_UPWARD = 2,
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#define FE_UPWARD FE_UPWARD
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FE_DOWNWARD = 1,
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#define FE_DOWNWARD FE_DOWNWARD
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FE_TONEAREST = 0,
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#define FE_TONEAREST FE_TONEAREST
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};
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/* Type representing exception flags. */
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typedef unsigned long int fexcept_t;
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/* Type representing floating-point environment. */
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typedef unsigned long int 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 *) 0xc009804c0270033fUL)
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#ifdef __USE_GNU
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/* Floating-point environment where only FE_UNNORMAL is masked since this
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exception is not generally supported by glibc. */
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# define FE_NOMASK_ENV ((__const fenv_t *) 0xc009804c02700302UL)
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/* Floating-point environment with (processor-dependent) non-IEEE
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floating point. In this case, turning on flush-to-zero mode for
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s0, s2, and s3. */
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# define FE_NONIEEE_ENV ((__const fenv_t *) 0xc009a04d0270037fUL)
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#endif
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