| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 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 */ |