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Diffstat (limited to 'REORG.TODO/math/complex.h')
| -rw-r--r-- | REORG.TODO/math/complex.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/REORG.TODO/math/complex.h b/REORG.TODO/math/complex.h new file mode 100644 index 0000000000..1ae4ec2409 --- /dev/null +++ b/REORG.TODO/math/complex.h @@ -0,0 +1,138 @@ +/* Copyright (C) 1997-2017 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 + +#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION +#include <bits/libc-header-start.h> + +/* Get general and ISO C99 specific information. */ +#include <bits/mathdef.h> + +/* Gather machine-dependent _FloatN type support. */ +#include <bits/floatn.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)) +# define CMPLXL(x, y) __builtin_complex ((long double) (x), (long double) (y)) +#endif + +#if __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT) +# define CMPLXF128(x, y) __builtin_complex ((_Float128) (x), (_Float128) (y)) +#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 + +#if (__HAVE_DISTINCT_FLOAT128 || (__HAVE_FLOAT128 && !defined _LIBC)) \ + && __GLIBC_USE (IEC_60559_TYPES_EXT) +# ifndef _Mfloat128_ +# define _Mfloat128_ _Float128 +# endif +/* GCC < 7 requires extra convincing to expose a complex float128 type. */ +# ifdef __CFLOAT128 +# undef _Mdouble_complex_ +# define _Mdouble_complex_ __CFLOAT128 +# endif +# define _Mdouble_ _Mfloat128_ +# define __MATH_PRECNAME(name) name##f128 +# include <bits/cmathcalls.h> +# undef _Mdouble_ +# undef __MATH_PRECNAME +# undef _Mdouble_complex_ +#endif + +/* 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 */ |