mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/* Copyright (C) 1997-2013 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
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#if !defined _MATH_H && !defined _COMPLEX_H
|
|
# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
|
|
#endif
|
|
|
|
#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
|
|
# define _MATH_H_MATHDEF 1
|
|
|
|
/* Normally, there is no long double type and the `float' and `double'
|
|
expressions are evaluated as `double'. */
|
|
typedef double float_t; /* `float' expressions are evaluated as
|
|
`double'. */
|
|
typedef double double_t; /* `double' expressions are evaluated as
|
|
`double'. */
|
|
|
|
/* The values returned by `ilogb' for 0 and NaN respectively. */
|
|
# define FP_ILOGB0 (-2147483647)
|
|
# define FP_ILOGBNAN 2147483647
|
|
|
|
/* The GCC 4.6 compiler will define __FP_FAST_FMA{,F,L} if the fma{,f,l}
|
|
builtins are supported. */
|
|
#if __FP_FAST_FMA
|
|
# define FP_FAST_FMA 1
|
|
#endif
|
|
|
|
#if __FP_FAST_FMAF
|
|
# define FP_FAST_FMAF 1
|
|
#endif
|
|
|
|
#if __FP_FAST_FMAL
|
|
# define FP_FAST_FMAL 1
|
|
#endif
|
|
|
|
#endif /* ISO C99 */
|
|
|
|
#ifndef __NO_LONG_DOUBLE_MATH
|
|
/* Signal that we do not really have a `long double'. The disables the
|
|
declaration of all the `long double' function variants. */
|
|
# define __NO_LONG_DOUBLE_MATH 1
|
|
#endif
|