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- /* Copyright (C) 1997, 1998, 1999, 2000, 2004 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, 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'. */
- # 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'. */
- # endif
- # else
- /* Wild guess at types for float_t and double_t. */
- typedef double float_t;
- typedef double double_t;
- # endif
- /* The values returned by `ilogb' for 0 and NaN respectively. */
- # define FP_ILOGB0 0x80000001
- # define FP_ILOGBNAN 0x7fffffff
- #endif /* ISO C99 */
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