mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-25 20:21:07 +00:00
04277e02d7
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
330 lines
9.5 KiB
C
330 lines
9.5 KiB
C
/* Macros to control TS 18661-3 glibc features where the same
|
|
definitions are appropriate for all platforms.
|
|
Copyright (C) 2017-2019 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/>. */
|
|
|
|
#ifndef _BITS_FLOATN_COMMON_H
|
|
#define _BITS_FLOATN_COMMON_H
|
|
|
|
#include <features.h>
|
|
#include <bits/long-double.h>
|
|
|
|
/* This header should be included at the bottom of each bits/floatn.h.
|
|
It defines the following macros for each _FloatN and _FloatNx type,
|
|
where the same definitions, or definitions based only on the macros
|
|
in bits/floatn.h, are appropriate for all glibc configurations. */
|
|
|
|
/* Defined to 1 if the current compiler invocation provides a
|
|
floating-point type with the right format for this type, and this
|
|
glibc includes corresponding *fN or *fNx interfaces for it. */
|
|
#define __HAVE_FLOAT16 0
|
|
#define __HAVE_FLOAT32 1
|
|
#define __HAVE_FLOAT64 1
|
|
#define __HAVE_FLOAT32X 1
|
|
#define __HAVE_FLOAT128X 0
|
|
|
|
/* Defined to 1 if the corresponding __HAVE_<type> macro is 1 and the
|
|
type is the first with its format in the sequence of (the default
|
|
choices for) float, double, long double, _Float16, _Float32,
|
|
_Float64, _Float128, _Float32x, _Float64x, _Float128x for this
|
|
glibc; that is, if functions present once per floating-point format
|
|
rather than once per type are present for this type.
|
|
|
|
All configurations supported by glibc have _Float32 the same format
|
|
as float, _Float64 and _Float32x the same format as double, the
|
|
_Float64x the same format as either long double or _Float128. No
|
|
configurations support _Float128x or, as of GCC 7, have compiler
|
|
support for a type meeting the requirements for _Float128x. */
|
|
#define __HAVE_DISTINCT_FLOAT16 __HAVE_FLOAT16
|
|
#define __HAVE_DISTINCT_FLOAT32 0
|
|
#define __HAVE_DISTINCT_FLOAT64 0
|
|
#define __HAVE_DISTINCT_FLOAT32X 0
|
|
#define __HAVE_DISTINCT_FLOAT64X 0
|
|
#define __HAVE_DISTINCT_FLOAT128X __HAVE_FLOAT128X
|
|
|
|
/* Defined to 1 if the corresponding _FloatN type is not binary compatible
|
|
with the corresponding ISO C type in the current compilation unit as
|
|
opposed to __HAVE_DISTINCT_FLOATN, which indicates the default types built
|
|
in glibc. */
|
|
#define __HAVE_FLOAT128_UNLIKE_LDBL (__HAVE_DISTINCT_FLOAT128 \
|
|
&& __LDBL_MANT_DIG__ != 113)
|
|
|
|
/* Defined to 1 if any _FloatN or _FloatNx types that are not
|
|
ABI-distinct are however distinct types at the C language level (so
|
|
for the purposes of __builtin_types_compatible_p and _Generic). */
|
|
#if __GNUC_PREREQ (7, 0) && !defined __cplusplus
|
|
# define __HAVE_FLOATN_NOT_TYPEDEF 1
|
|
#else
|
|
# define __HAVE_FLOATN_NOT_TYPEDEF 0
|
|
#endif
|
|
|
|
#ifndef __ASSEMBLER__
|
|
|
|
/* Defined to concatenate the literal suffix to be used with _FloatN
|
|
or _FloatNx types, if __HAVE_<type> is 1. The corresponding
|
|
literal suffixes exist since GCC 7, for C only. */
|
|
# if __HAVE_FLOAT16
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
/* No corresponding suffix available for this type. */
|
|
# define __f16(x) ((_Float16) x##f)
|
|
# else
|
|
# define __f16(x) x##f16
|
|
# endif
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT32
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
# define __f32(x) x##f
|
|
# else
|
|
# define __f32(x) x##f32
|
|
# endif
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT64
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
# ifdef __NO_LONG_DOUBLE_MATH
|
|
# define __f64(x) x##l
|
|
# else
|
|
# define __f64(x) x
|
|
# endif
|
|
# else
|
|
# define __f64(x) x##f64
|
|
# endif
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT32X
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
# define __f32x(x) x
|
|
# else
|
|
# define __f32x(x) x##f32x
|
|
# endif
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT64X
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
# if __HAVE_FLOAT64X_LONG_DOUBLE
|
|
# define __f64x(x) x##l
|
|
# else
|
|
# define __f64x(x) __f128 (x)
|
|
# endif
|
|
# else
|
|
# define __f64x(x) x##f64x
|
|
# endif
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT128X
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
# error "_Float128X supported but no constant suffix"
|
|
# else
|
|
# define __f128x(x) x##f128x
|
|
# endif
|
|
# endif
|
|
|
|
/* Defined to a complex type if __HAVE_<type> is 1. */
|
|
# if __HAVE_FLOAT16
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
typedef _Complex float __cfloat16 __attribute__ ((__mode__ (__HC__)));
|
|
# define __CFLOAT16 __cfloat16
|
|
# else
|
|
# define __CFLOAT16 _Complex _Float16
|
|
# endif
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT32
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
# define __CFLOAT32 _Complex float
|
|
# else
|
|
# define __CFLOAT32 _Complex _Float32
|
|
# endif
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT64
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
# ifdef __NO_LONG_DOUBLE_MATH
|
|
# define __CFLOAT64 _Complex long double
|
|
# else
|
|
# define __CFLOAT64 _Complex double
|
|
# endif
|
|
# else
|
|
# define __CFLOAT64 _Complex _Float64
|
|
# endif
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT32X
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
# define __CFLOAT32X _Complex double
|
|
# else
|
|
# define __CFLOAT32X _Complex _Float32x
|
|
# endif
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT64X
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
# if __HAVE_FLOAT64X_LONG_DOUBLE
|
|
# define __CFLOAT64X _Complex long double
|
|
# else
|
|
# define __CFLOAT64X __CFLOAT128
|
|
# endif
|
|
# else
|
|
# define __CFLOAT64X _Complex _Float64x
|
|
# endif
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT128X
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
# error "_Float128X supported but no complex type"
|
|
# else
|
|
# define __CFLOAT128X _Complex _Float128x
|
|
# endif
|
|
# endif
|
|
|
|
/* The remaining of this file provides support for older compilers. */
|
|
# if __HAVE_FLOAT16
|
|
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
typedef float _Float16 __attribute__ ((__mode__ (__HF__)));
|
|
# endif
|
|
|
|
# if !__GNUC_PREREQ (7, 0)
|
|
# define __builtin_huge_valf16() ((_Float16) __builtin_huge_val ())
|
|
# define __builtin_inff16() ((_Float16) __builtin_inf ())
|
|
# define __builtin_nanf16(x) ((_Float16) __builtin_nan (x))
|
|
# define __builtin_nansf16(x) ((_Float16) __builtin_nans (x))
|
|
# endif
|
|
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT32
|
|
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
typedef float _Float32;
|
|
# endif
|
|
|
|
# if !__GNUC_PREREQ (7, 0)
|
|
# define __builtin_huge_valf32() (__builtin_huge_valf ())
|
|
# define __builtin_inff32() (__builtin_inff ())
|
|
# define __builtin_nanf32(x) (__builtin_nanf (x))
|
|
# define __builtin_nansf32(x) (__builtin_nansf (x))
|
|
# endif
|
|
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT64
|
|
|
|
/* If double, long double and _Float64 all have the same set of
|
|
values, TS 18661-3 requires the usual arithmetic conversions on
|
|
long double and _Float64 to produce _Float64. For this to be the
|
|
case when building with a compiler without a distinct _Float64
|
|
type, _Float64 must be a typedef for long double, not for
|
|
double. */
|
|
|
|
# ifdef __NO_LONG_DOUBLE_MATH
|
|
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
typedef long double _Float64;
|
|
# endif
|
|
|
|
# if !__GNUC_PREREQ (7, 0)
|
|
# define __builtin_huge_valf64() (__builtin_huge_vall ())
|
|
# define __builtin_inff64() (__builtin_infl ())
|
|
# define __builtin_nanf64(x) (__builtin_nanl (x))
|
|
# define __builtin_nansf64(x) (__builtin_nansl (x))
|
|
# endif
|
|
|
|
# else
|
|
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
typedef double _Float64;
|
|
# endif
|
|
|
|
# if !__GNUC_PREREQ (7, 0)
|
|
# define __builtin_huge_valf64() (__builtin_huge_val ())
|
|
# define __builtin_inff64() (__builtin_inf ())
|
|
# define __builtin_nanf64(x) (__builtin_nan (x))
|
|
# define __builtin_nansf64(x) (__builtin_nans (x))
|
|
# endif
|
|
|
|
# endif
|
|
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT32X
|
|
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
typedef double _Float32x;
|
|
# endif
|
|
|
|
# if !__GNUC_PREREQ (7, 0)
|
|
# define __builtin_huge_valf32x() (__builtin_huge_val ())
|
|
# define __builtin_inff32x() (__builtin_inf ())
|
|
# define __builtin_nanf32x(x) (__builtin_nan (x))
|
|
# define __builtin_nansf32x(x) (__builtin_nans (x))
|
|
# endif
|
|
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT64X
|
|
|
|
# if __HAVE_FLOAT64X_LONG_DOUBLE
|
|
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
typedef long double _Float64x;
|
|
# endif
|
|
|
|
# if !__GNUC_PREREQ (7, 0)
|
|
# define __builtin_huge_valf64x() (__builtin_huge_vall ())
|
|
# define __builtin_inff64x() (__builtin_infl ())
|
|
# define __builtin_nanf64x(x) (__builtin_nanl (x))
|
|
# define __builtin_nansf64x(x) (__builtin_nansl (x))
|
|
# endif
|
|
|
|
# else
|
|
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
typedef _Float128 _Float64x;
|
|
# endif
|
|
|
|
# if !__GNUC_PREREQ (7, 0)
|
|
# define __builtin_huge_valf64x() (__builtin_huge_valf128 ())
|
|
# define __builtin_inff64x() (__builtin_inff128 ())
|
|
# define __builtin_nanf64x(x) (__builtin_nanf128 (x))
|
|
# define __builtin_nansf64x(x) (__builtin_nansf128 (x))
|
|
# endif
|
|
|
|
# endif
|
|
|
|
# endif
|
|
|
|
# if __HAVE_FLOAT128X
|
|
|
|
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
|
|
# error "_Float128x supported but no type"
|
|
# endif
|
|
|
|
# if !__GNUC_PREREQ (7, 0)
|
|
# define __builtin_huge_valf128x() ((_Float128x) __builtin_huge_val ())
|
|
# define __builtin_inff128x() ((_Float128x) __builtin_inf ())
|
|
# define __builtin_nanf128x(x) ((_Float128x) __builtin_nan (x))
|
|
# define __builtin_nansf128x(x) ((_Float128x) __builtin_nans (x))
|
|
# endif
|
|
|
|
# endif
|
|
|
|
#endif /* !__ASSEMBLER__. */
|
|
|
|
#endif /* _BITS_FLOATN_COMMON_H */
|