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glibc/bits/floatn-common.h
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs 
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00

330 lines
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/* 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
<https://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 */
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