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/* Copyright (C) 1997, 1998 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. */
/*
* ISO C 9X: 7.8 Complex arithmetic <complex.h>
*/
#ifndef _COMPLEX_H
#define _COMPLEX_H 1
#include <features.h>
/* Get general and ISO C 9X specific information. */
#include <bits/mathdef.h>
__BEGIN_DECLS
/* We might need to add support for more compilers here. But once ISO
C 9X is out hopefully all maintained compilers will provide the data
types `float complex' and `double complex'. */
#if __GNUC_PREREQ (2, 7)
# define _Complex __complex__
#endif
/* Narrowest imaginary unit. This depends on the floating-point
evaluation method.
XXX This probably has to go into a gcc related file. */
#define _Complex_I (1.0iF)
/* Another more descriptive name is `I'.
XXX Once we have the imaginary support switch this to _Imaginary_I. */
#undef I
#define I _Complex_I
/* Optimization aids. This is not yet implemented in gcc and once it
is this will probably be available in a gcc header. */
#define CX_LIMITED_RANGE_ON
#define CX_LIMITED_RANGE_OFF
#define CX_LIMITED_RANGE_DEFAULT
/* The file <bits/cmathcalls.h> contains the prototypes for all the
actual math functions. These macros are used for those prototypes,
so we can easily declare each function as both `name' and `__name',
and can declare the float versions `namef' and `__namef'. */
#define __MATHCALL(function, args) \
__MATHDECL (_Mdouble_complex_,function, args)
#define __MATHDECL(type, function, args) \
__MATHDECL_1(type, function, args); \
__MATHDECL_1(type, __CONCAT(__,function), args)
#define __MATHDECL_1(type, function, args) \
extern type __MATH_PRECNAME(function) args
#define _Mdouble_ double
#define __MATH_PRECNAME(name) name
#include <bits/cmathcalls.h>
#undef _Mdouble_
#undef __MATH_PRECNAME
/* Now the float versions. */
#ifndef _Mfloat_
# define _Mfloat_ float
#endif
#define _Mdouble_ _Mfloat_
#ifdef __STDC__
# define __MATH_PRECNAME(name) name##f
#else
# define __MATH_PRECNAME(name) name/**/f
#endif
#include <bits/cmathcalls.h>
#undef _Mdouble_
#undef __MATH_PRECNAME
/* And the long double versions. It is non-critical to define them
here unconditionally since `long double' is required in ISO C 9X. */
#if __STDC__ - 0 || __GNUC__ - 0 && !defined __NO_LONG_DOUBLE_MATH
# ifndef _Mlong_double_
# define _Mlong_double_ long double
# endif
# define _Mdouble_ _Mlong_double_
# ifdef __STDC__
# define __MATH_PRECNAME(name) name##l
# else
# define __MATH_PRECNAME(name) name/**/l
# endif
# include <bits/cmathcalls.h>
#endif
#undef _Mdouble_
#undef __MATH_PRECNAME
#undef __MATHDECL_1
#undef __MATHDECL
#undef __MATHCALL
__END_DECLS
#endif /* complex.h */
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