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/* Copyright (C) 1997 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. */
#ifndef _MATH_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! */
#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'. */
/* Signal that both types are `double'. */
# define FLT_EVAL_METHOD 1
/* 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;
/* Strange compiler, we don't know how it works. */
# define FLT_EVAL_METHOD -1
/* 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 0x80000001
#define FP_ILOGBNAN 0x7fffffff
/* Number of decimal digits for the `double' type. */
#define DECIMAL_DIG 15
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