| | 1 | /* Copyright (C) 1997, 1998, 1999, 2000, 2006, 2011 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) \ |
| | 88 | && (!(defined __NO_LONG_DOUBLE_MATH && defined _LIBC) \ |
| | 89 | || defined __LDBL_COMPAT) |
| | 90 | # ifdef __LDBL_COMPAT |
| | 91 | # undef __MATHDECL_1 |
| | 92 | # define __MATHDECL_1(type, function, args) \ |
| | 93 | extern type __REDIRECT_NTH(__MATH_PRECNAME(function), args, function) |
| | 94 | # endif |
| | 95 | |
| | 96 | # ifndef _Mlong_double_ |
| | 97 | # define _Mlong_double_ long double |
| | 98 | # endif |
| | 99 | # define _Mdouble_ _Mlong_double_ |
| | 100 | # ifdef __STDC__ |
| | 101 | # define __MATH_PRECNAME(name) name##l |
| | 102 | # else |
| | 103 | # define __MATH_PRECNAME(name) name/**/l |
| | 104 | # endif |
| | 105 | # include <bits/cmathcalls.h> |
| | 106 | #endif |
| | 107 | #undef _Mdouble_ |
| | 108 | #undef __MATH_PRECNAME |
| | 109 | #undef __MATHDECL_1 |
| | 110 | #undef __MATHDECL |
| | 111 | #undef __MATHCALL |
| | 112 | |
| | 113 | __END_DECLS |
| | 114 | |
| | 115 | #endif /* complex.h */ |
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