1 /* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 #if !defined _MATH_H && !defined _COMPLEX_H
20 # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
23 /* FIXME! This file describes properties of the compiler, not the machine;
24 it should not be part of libc! */
26 #if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
27 # define _MATH_H_MATHDEF 1
32 /* In GNU or ANSI mode, gcc leaves `float' expressions as-is. */
33 typedef float float_t;
34 typedef double double_t;
36 /* Signal that types stay as they were declared. */
37 # define FLT_EVAL_METHOD 0
39 /* Define `INFINITY' as value of type `float'. */
40 # define INFINITY HUGE_VALF
44 /* For `gcc -traditional', `float' expressions are evaluated as `double'. */
45 typedef double float_t;
46 typedef double double_t;
48 /* Signal that both types are `double'. */
49 # define FLT_EVAL_METHOD 1
51 /* Define `INFINITY' as value of type `float'. */
52 # define INFINITY HUGE_VALF
57 /* Wild guess at types for float_t and double_t. */
58 typedef double float_t;
59 typedef double double_t;
61 /* Define `INFINITY' as value of type `float'. */
62 # define INFINITY HUGE_VALF
66 /* The values returned by `ilogb' for 0 and NaN respectively. */
67 # define FP_ILOGB0 (-2147483647)
68 # define FP_ILOGBNAN (2147483647)
72 #ifndef __NO_LONG_DOUBLE_MATH
73 /* Signal that we do not really have a `long double'. The disables the
74 declaration of all the `long double' function variants. */
75 # define __NO_LONG_DOUBLE_MATH 1