1/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
2   This file is part of the GNU C Library.
3
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.
8
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.
13
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
17   02111-1307 USA.  */
18
19/*
20 *	ISO C99:  7.3 Complex arithmetic	<complex.h>
21 */
22
23#ifndef _COMPLEX_H
24#define _COMPLEX_H	1
25
26#include <features.h>
27
28__BEGIN_DECLS
29
30#if __GNUC__ >= 7
31#define __isinfl(value) __builtin_isinfl(value)
32#define __isnan(value) __builtin_isnan(value)
33#define __isnanf(value) __builtin_isnanf(value)
34#define __isnanl(value) __builtin_isnanl(value)
35#define __isinf(value) __builtin_isinf(value)
36#define __isinff(value) __builtin_isinff(value)
37#endif
38
39/* We might need to add support for more compilers here.  But since ISO
40   C99 is out hopefully all maintained compilers will soon provide the data
41   types `float complex' and `double complex'.  */
42#if __GNUC_PREREQ (2, 7) && !__GNUC_PREREQ (2, 97)
43# define _Complex __complex__
44#endif
45
46#define complex		_Complex
47
48/* Narrowest imaginary unit.  This depends on the floating-point
49   evaluation method.
50   XXX This probably has to go into a gcc related file.  */
51#define _Complex_I	(__extension__ 1.0iF)
52
53/* Another more descriptive name is `I'.
54   XXX Once we have the imaginary support switch this to _Imaginary_I.  */
55#undef I
56#define I _Complex_I
57
58/* The file <bits/cmathcalls.h> contains the prototypes for all the
59   actual math functions.  These macros are used for those prototypes,
60   so we can easily declare each function as both `name' and `__name',
61   and can declare the float versions `namef' and `__namef'.  */
62
63#define __MATHCALL(function, args)	\
64  __MATHDECL (_Mdouble_complex_,function, args)
65#define __MATHDECL(type, function, args) \
66  __MATHDECL_1(type, function, args); \
67  __MATHDECL_1(type, __CONCAT(__,function), args)
68#define __MATHDECL_1(type, function, args) \
69  extern type __MATH_PRECNAME(function) args __THROW
70
71#define _Mdouble_ 		double
72#define __MATH_PRECNAME(name)	name
73#include <bits/cmathcalls.h>
74#undef	_Mdouble_
75#undef	__MATH_PRECNAME
76
77/* Now the float versions.  */
78#ifndef _Mfloat_
79# define _Mfloat_		float
80#endif
81#define _Mdouble_ 		_Mfloat_
82#ifdef __STDC__
83# define __MATH_PRECNAME(name)	name##f
84#else
85# define __MATH_PRECNAME(name)	name/**/f
86#endif
87#include <bits/cmathcalls.h>
88#undef	_Mdouble_
89#undef	__MATH_PRECNAME
90
91/* And the long double versions.  It is non-critical to define them
92   here unconditionally since `long double' is required in ISO C99.  */
93#if (__STDC__ - 0 || __GNUC__ - 0) && !defined __NO_LONG_DOUBLE_MATH
94# ifndef _Mlong_double_
95#  define _Mlong_double_	long double
96# endif
97# define _Mdouble_ 		_Mlong_double_
98# ifdef __STDC__
99#  define __MATH_PRECNAME(name)	name##l
100# else
101#  define __MATH_PRECNAME(name)	name/**/l
102# endif
103# include <bits/cmathcalls.h>
104#endif
105#undef	_Mdouble_
106#undef	__MATH_PRECNAME
107#undef	__MATHDECL_1
108#undef	__MATHDECL
109#undef	__MATHCALL
110
111__END_DECLS
112
113#endif /* complex.h */
114