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d967237443
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>
39 lines
1.4 KiB
C
39 lines
1.4 KiB
C
/* Provide nexttoward[|f] implementations for IEEE long double.
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Copyright (C) 2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <float128_private.h>
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/* Build nexttoward functions with binary128 format. */
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#undef weak_alias
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#define weak_alias(from, to)
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#undef libm_alias_ldouble
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#define libm_alias_ldouble(from, to)
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#undef __nexttoward
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#define __nexttoward __nexttoward_to_ieee128
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#include <sysdeps/ieee754/ldbl-128/s_nexttoward.c>
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#undef weak_alias
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#define weak_alias(from, to)
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#undef libm_alias_ldouble
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#define libm_alias_ldouble(from, to)
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#undef __nexttowardf
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#define __nexttowardf __nexttowardf_to_ieee128
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#include <sysdeps/ieee754/ldbl-128/s_nexttowardf.c>
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#include <libm-alias-ldouble.h>
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