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edit | delete | rename | download ] [FILE] wchar.h [ edit | delete | rename | download ] [FILE] wctype.h [ edit | delete | rename | download ] [FILE] wordexp.h [ edit | delete | rename | download ] [FILE] xlocale.h [ edit | delete | rename | download ] [FILE] zconf.h [ edit | delete | rename | download ] [FILE] zlib.h [ edit | delete | rename | download ] Viewing: /usr/include/complex.h /* Copyright (C) 1997-2000, 2006, 2011, 2012 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 Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ /* * ISO C99: 7.3 Complex arithmetic <complex.h> */ #ifndef _COMPLEX_H #define _COMPLEX_H 1 #include <features.h> /* Get general and ISO C99 specific information. */ #include <bits/mathdef.h> __BEGIN_DECLS /* We might need to add support for more compilers here. But since ISO C99 is out hopefully all maintained compilers will soon provide the data types `float complex' and `double complex'. */ #if __GNUC_PREREQ (2, 7) && !__GNUC_PREREQ (2, 97) # define _Complex __complex__ #endif #define complex _Complex /* 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 (__extension__ 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 #if defined __USE_ISOC11 && __GNUC_PREREQ (4, 7) /* Macros to expand into expression of specified complex type. */ # define CMPLX(x, y) __builtin_complex ((double) (x), (double) (y)) # define CMPLXF(x, y) __builtin_complex ((float) (x), (float) (y)) # ifndef __NO_LONG_DOUBLE_MATH # define CMPLXL(x, y) __builtin_complex ((long double) (x), (long double) (y)) # endif #endif /* 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 __THROW #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_ #define __MATH_PRECNAME(name) name##f #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 C99. */ #if !(defined __NO_LONG_DOUBLE_MATH && defined _LIBC) \ || defined __LDBL_COMPAT # ifdef __LDBL_COMPAT # undef __MATHDECL_1 # define __MATHDECL_1(type, function, args) \ extern type __REDIRECT_NTH(__MATH_PRECNAME(function), args, function) # endif # ifndef _Mlong_double_ # define _Mlong_double_ long double # endif # define _Mdouble_ _Mlong_double_ # define __MATH_PRECNAME(name) name##l # include <bits/cmathcalls.h> #endif #undef _Mdouble_ #undef __MATH_PRECNAME #undef __MATHDECL_1 #undef __MATHDECL #undef __MATHCALL __END_DECLS #endif /* complex.h */