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/* Get general and ISO C99 specific information. */ 29#include <bits/mathdef.h> 30 31__BEGIN_DECLS 32 33/* We might need to add support for more compilers here. But since ISO 34 C99 is out hopefully all maintained compilers will soon provide the data 35 types `float complex' and `double complex'. */ 36#if __GNUC_PREREQ (2, 7) && !__GNUC_PREREQ (2, 97) 37# define _Complex __complex__ 38#endif 39 40#define complex _Complex 41 42/* Narrowest imaginary unit. This depends on the floating-point 43 evaluation method. 44 XXX This probably has to go into a gcc related file. */ 45#define _Complex_I (__extension__ 1.0iF) 46 47/* Another more descriptive name is `I'. 48 XXX Once we have the imaginary support switch this to _Imaginary_I. */ 49#undef I 50#define I _Complex_I 51 52/* The file <bits/cmathcalls.h> contains the prototypes for all the 53 actual math functions. These macros are used for those prototypes, 54 so we can easily declare each function as both `name' and `__name', 55 and can declare the float versions `namef' and `__namef'. */ 56 57#define __MATHCALL(function, args) \ 58 __MATHDECL(_Mdouble_complex_,function, args) 59#define __MATHDECL(type, function, args) \ 60 __MATHDECL_1(type, function, args); \ 61 __MATHDECL_1(type, __CONCAT(__,function), args) 62#define __MATHDECL_1(type, function, args) \ 63 extern type __MATH_PRECNAME(function) args __THROW 64 65#define _Mdouble_ double 66#define __MATH_PRECNAME(name) name 67#include <bits/cmathcalls.h> 68#undef _Mdouble_ 69#undef __MATH_PRECNAME 70 71/* Now the float versions. */ 72#ifndef _Mfloat_ 73# define _Mfloat_ float 74#endif 75#define _Mdouble_ _Mfloat_ 76#ifdef __STDC__ 77# define __MATH_PRECNAME(name) name##f 78#else 79# define __MATH_PRECNAME(name) name/**/f 80#endif 81#include <bits/cmathcalls.h> 82#undef _Mdouble_ 83#undef __MATH_PRECNAME 84 85/* And the long double versions. It is non-critical to define them 86 here unconditionally since `long double' is required in ISO C99. */ 87#if __STDC__ - 0 || __GNUC__ - 0 && defined __UCLIBC_HAS_LONG_DOUBLE_MATH__ 88# ifndef _Mlong_double_ 89# define _Mlong_double_ long double 90# endif 91# define _Mdouble_ _Mlong_double_ 92# ifdef __STDC__ 93# define __MATH_PRECNAME(name) name##l 94# else 95# define __MATH_PRECNAME(name) name/**/l 96# endif 97# include <bits/cmathcalls.h> 98#endif 99#undef _Mdouble_ 100#undef __MATH_PRECNAME 101#undef __MATHDECL_1 102#undef __MATHDECL 103#undef __MATHCALL 104 105__END_DECLS 106 107#endif /* complex.h */ 108