mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
e2239af353
Improve the commentary to aid future developers who will stumble upon this novel, yet not always perfect, mechanism to support alternative formats for long double. Likewise, rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI now that development work has settled down. The command used was git grep -l __LONG_DOUBLE_USES_FLOAT128 ':!./ChangeLog*' | \ xargs sed -i 's/__LONG_DOUBLE_USES_FLOAT128/__LDOUBLE_REDIRECTS_TO_FLOAT128_ABI/g' Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
250 lines
7.9 KiB
C
250 lines
7.9 KiB
C
/* Copyright (C) 1997-2020 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
|
|
<https://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_FLOAT16 && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# define CMPLXF16(x, y) __builtin_complex ((_Float16) (x), (_Float16) (y))
|
|
#endif
|
|
|
|
#if __HAVE_FLOAT32 && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# define CMPLXF32(x, y) __builtin_complex ((_Float32) (x), (_Float32) (y))
|
|
#endif
|
|
|
|
#if __HAVE_FLOAT64 && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# define CMPLXF64(x, y) __builtin_complex ((_Float64) (x), (_Float64) (y))
|
|
#endif
|
|
|
|
#if __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# define CMPLXF128(x, y) __builtin_complex ((_Float128) (x), (_Float128) (y))
|
|
#endif
|
|
|
|
#if __HAVE_FLOAT32X && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# define CMPLXF32X(x, y) __builtin_complex ((_Float32x) (x), (_Float32x) (y))
|
|
#endif
|
|
|
|
#if __HAVE_FLOAT64X && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# define CMPLXF64X(x, y) __builtin_complex ((_Float64x) (x), (_Float64x) (y))
|
|
#endif
|
|
|
|
#if __HAVE_FLOAT128X && __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# define CMPLXF128X(x, y) \
|
|
__builtin_complex ((_Float128x) (x), (_Float128x) (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_IMPL(type, function, args) \
|
|
__MATHDECL_1(type, function, args); \
|
|
__MATHDECL_1(type, __CONCAT(__,function), args)
|
|
#define __MATHDECL(type, function, args) \
|
|
__MATHDECL_IMPL(type, function, args)
|
|
#define __MATHDECL_1_IMPL(type, function, args) \
|
|
extern type __MATH_PRECNAME(function) args __THROW
|
|
#define __MATHDECL_1(type, function, args) \
|
|
__MATHDECL_1_IMPL(type, function, args)
|
|
|
|
#define _Mdouble_ double
|
|
#define __MATH_PRECNAME(name) name
|
|
#include <bits/cmathcalls.h>
|
|
#undef _Mdouble_
|
|
#undef __MATH_PRECNAME
|
|
|
|
/* Now the float versions. */
|
|
#define _Mdouble_ float
|
|
#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)
|
|
# elif __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
|
|
# undef __MATHDECL_1
|
|
# undef __MATHDECL
|
|
# define __REDIR_TO(function) \
|
|
__ ## function ## ieee128
|
|
# define __MATHDECL_1(type, function, alias, args) \
|
|
extern type __REDIRECT_NTH(__MATH_PRECNAME(function), args, alias)
|
|
#define __MATHDECL(type, function, args) \
|
|
__MATHDECL_1(type, function, __REDIR_TO(function), args); \
|
|
__MATHDECL_1(type, __CONCAT(__,function), __REDIR_TO(function), args)
|
|
# endif
|
|
|
|
# define _Mdouble_ long double
|
|
# define __MATH_PRECNAME(name) name##l
|
|
# include <bits/cmathcalls.h>
|
|
# if defined __LDBL_COMPAT \
|
|
|| __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
|
|
# undef __REDIR_TO
|
|
# undef __MATHDECL_1
|
|
# undef __MATHDECL
|
|
#define __MATHDECL(type, function, args) \
|
|
__MATHDECL_IMPL(type, function, args)
|
|
# define __MATHDECL_1(type, function, args) \
|
|
__MATHDECL_1_IMPL(type, function, args)
|
|
# endif
|
|
#endif
|
|
#undef _Mdouble_
|
|
#undef __MATH_PRECNAME
|
|
|
|
#if (__HAVE_DISTINCT_FLOAT16 || (__HAVE_FLOAT16 && !defined _LIBC)) \
|
|
&& __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# undef _Mdouble_complex_
|
|
# define _Mdouble_complex_ __CFLOAT16
|
|
# define _Mdouble_ _Float16
|
|
# define __MATH_PRECNAME(name) name##f16
|
|
# include <bits/cmathcalls.h>
|
|
# undef _Mdouble_
|
|
# undef __MATH_PRECNAME
|
|
# undef _Mdouble_complex_
|
|
#endif
|
|
|
|
#if (__HAVE_DISTINCT_FLOAT32 || (__HAVE_FLOAT32 && !defined _LIBC)) \
|
|
&& __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# undef _Mdouble_complex_
|
|
# define _Mdouble_complex_ __CFLOAT32
|
|
# define _Mdouble_ _Float32
|
|
# define __MATH_PRECNAME(name) name##f32
|
|
# include <bits/cmathcalls.h>
|
|
# undef _Mdouble_
|
|
# undef __MATH_PRECNAME
|
|
# undef _Mdouble_complex_
|
|
#endif
|
|
|
|
#if (__HAVE_DISTINCT_FLOAT64 || (__HAVE_FLOAT64 && !defined _LIBC)) \
|
|
&& __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# undef _Mdouble_complex_
|
|
# define _Mdouble_complex_ __CFLOAT64
|
|
# define _Mdouble_ _Float64
|
|
# define __MATH_PRECNAME(name) name##f64
|
|
# include <bits/cmathcalls.h>
|
|
# undef _Mdouble_
|
|
# undef __MATH_PRECNAME
|
|
# undef _Mdouble_complex_
|
|
#endif
|
|
|
|
#if (__HAVE_DISTINCT_FLOAT128 || (__HAVE_FLOAT128 && !defined _LIBC)) \
|
|
&& __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# undef _Mdouble_complex_
|
|
# define _Mdouble_complex_ __CFLOAT128
|
|
# define _Mdouble_ _Float128
|
|
# define __MATH_PRECNAME(name) name##f128
|
|
# include <bits/cmathcalls.h>
|
|
# undef _Mdouble_
|
|
# undef __MATH_PRECNAME
|
|
# undef _Mdouble_complex_
|
|
#endif
|
|
|
|
#if (__HAVE_DISTINCT_FLOAT32X || (__HAVE_FLOAT32X && !defined _LIBC)) \
|
|
&& __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# undef _Mdouble_complex_
|
|
# define _Mdouble_complex_ __CFLOAT32X
|
|
# define _Mdouble_ _Float32x
|
|
# define __MATH_PRECNAME(name) name##f32x
|
|
# include <bits/cmathcalls.h>
|
|
# undef _Mdouble_
|
|
# undef __MATH_PRECNAME
|
|
# undef _Mdouble_complex_
|
|
#endif
|
|
|
|
#if (__HAVE_DISTINCT_FLOAT64X || (__HAVE_FLOAT64X && !defined _LIBC)) \
|
|
&& __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# undef _Mdouble_complex_
|
|
# define _Mdouble_complex_ __CFLOAT64X
|
|
# define _Mdouble_ _Float64x
|
|
# define __MATH_PRECNAME(name) name##f64x
|
|
# include <bits/cmathcalls.h>
|
|
# undef _Mdouble_
|
|
# undef __MATH_PRECNAME
|
|
# undef _Mdouble_complex_
|
|
#endif
|
|
|
|
#if (__HAVE_DISTINCT_FLOAT128X || (__HAVE_FLOAT128X && !defined _LIBC)) \
|
|
&& __GLIBC_USE (IEC_60559_TYPES_EXT)
|
|
# undef _Mdouble_complex_
|
|
# define _Mdouble_complex_ __CFLOAT128X
|
|
# define _Mdouble_ _Float128x
|
|
# define __MATH_PRECNAME(name) name##f128x
|
|
# include <bits/cmathcalls.h>
|
|
# undef _Mdouble_
|
|
# undef __MATH_PRECNAME
|
|
# undef _Mdouble_complex_
|
|
#endif
|
|
|
|
#undef __MATHDECL_1_IMPL
|
|
#undef __MATHDECL_1
|
|
#undef __MATHDECL
|
|
#undef __MATHCALL
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* complex.h */
|