glibc/sysdeps/ieee754/ldbl-128ibm-compat/s_nexttowardf128.c

/* Provide nexttoward[|f] implementations for IEEE long double.
   Copyright (C) 2020-2021 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/>.  */

#include <float128_private.h>

/* Build nexttoward functions with binary128 format.  */
#undef weak_alias
#define weak_alias(from, to)
#undef libm_alias_ldouble
#define libm_alias_ldouble(from, to)
#undef __nexttoward
#define __nexttoward __nexttoward_to_ieee128
#include <sysdeps/ieee754/ldbl-128/s_nexttoward.c>

#undef weak_alias
#define weak_alias(from, to)
#undef libm_alias_ldouble
#define libm_alias_ldouble(from, to)
#undef __nexttowardf
#define __nexttowardf __nexttowardf_to_ieee128
#include <sysdeps/ieee754/ldbl-128/s_nexttowardf.c>

#include <libm-alias-ldouble.h>
ldbl-128ibm-compat: Provide nexttoward functions The functions in the nexttoward family are special, in the sense that they always have a long double argument, regardless of their suffix (i.e.: nexttowardf and nexttoward have a long double argument, besides the float and double arguments). On top of that, they are also special because nexttoward functions are not part of the _FloatN API, hence __nexttowardf128 do not exist. This patch adds 4 new function implementations for the new long double format: __nexttoward_to_ieee128 __nexttowardf_to_ieee128 __nexttowardieee128 (as an alias to __nextafterieee128) Likewise, rename "long double" "_Float128" in shared ldbl-128 files to ensure correct type is used irrespective of ABI switches. Thank you to those who helped out with this patch: Co-Authored-By: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com> 2018-06-05 19:54:40 +00:00			`/* Provide nexttoward[\|f] implementations for IEEE long double.`
Update copyright dates with scripts/update-copyrights I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: * pre-commit check failed ... remote: * error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master 2021-01-02 19:32:25 +00:00			`Copyright (C) 2020-2021 Free Software Foundation, Inc.`
ldbl-128ibm-compat: Provide nexttoward functions The functions in the nexttoward family are special, in the sense that they always have a long double argument, regardless of their suffix (i.e.: nexttowardf and nexttoward have a long double argument, besides the float and double arguments). On top of that, they are also special because nexttoward functions are not part of the _FloatN API, hence __nexttowardf128 do not exist. This patch adds 4 new function implementations for the new long double format: __nexttoward_to_ieee128 __nexttowardf_to_ieee128 __nexttowardieee128 (as an alias to __nextafterieee128) Likewise, rename "long double" "_Float128" in shared ldbl-128 files to ensure correct type is used irrespective of ABI switches. Thank you to those who helped out with this patch: Co-Authored-By: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com> 2018-06-05 19:54:40 +00:00			`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/>. */`

			`#include <float128_private.h>`

			`/* Build nexttoward functions with binary128 format. */`
			`#undef weak_alias`
			`#define weak_alias(from, to)`
			`#undef libm_alias_ldouble`
			`#define libm_alias_ldouble(from, to)`
			`#undef __nexttoward`
			`#define __nexttoward __nexttoward_to_ieee128`
			`#include <sysdeps/ieee754/ldbl-128/s_nexttoward.c>`

			`#undef weak_alias`
			`#define weak_alias(from, to)`
			`#undef libm_alias_ldouble`
			`#define libm_alias_ldouble(from, to)`
			`#undef __nexttowardf`
			`#define __nexttowardf __nexttowardf_to_ieee128`
			`#include <sysdeps/ieee754/ldbl-128/s_nexttowardf.c>`

			`#include <libm-alias-ldouble.h>`