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- /* Copyright (C) 1997, 1998, 1999, 2000 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
- #if !defined _MATH_H && !defined _COMPLEX_H
- # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
- #endif
- /* FIXME! This file describes properties of the compiler, not the machine;
- it should not be part of libc!
- FIXME! This file does not deal with the -fshort-double option of
- gcc! */
- #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
- # define _MATH_H_MATHDEF 1
- # ifdef __GNUC__
- # if __STDC__ == 1
- /* In GNU or ANSI mode, gcc leaves `float' expressions as-is. */
- typedef float float_t; /* `float' expressions are evaluated as
- `float'. */
- typedef double double_t; /* `double' expressions are evaluated as
- `double'. */
- /* Signal that types stay as they were declared. */
- # define FLT_EVAL_METHOD 0
- /* Define `INFINITY' as value of type `float'. */
- # define INFINITY HUGE_VALF
- # else
- /* For `gcc -traditional', `float' 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'. */
- /* Define `INFINITY' as value of type `float'. */
- # define INFINITY HUGE_VALF
- # endif
- # else
- /* Wild guess at types for float_t and double_t. */
- typedef double float_t;
- typedef double double_t;
- /* Define `INFINITY' as value of type `float'. */
- # define INFINITY HUGE_VALF
- # endif
- /* The values returned by `ilogb' for 0 and NaN respectively. */
- # define FP_ILOGB0 (-2147483647)
- # define FP_ILOGBNAN (2147483647)
- #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
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