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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>
31 lines
1.2 KiB
C
31 lines
1.2 KiB
C
/* Manipulation of the bit representation of 'long double' quantities.
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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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<https://www.gnu.org/licenses/>. */
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#ifndef _MATH_LDBL_H_IBM128_COMPAT
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#define _MATH_LDBL_H_IBM128_COMPAT 1
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#include <bits/floatn.h>
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/* Trampoline in the ldbl-128ibm headers if building against the
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old abi. Otherwise, we have nothing to add. */
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#if __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 0
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#include_next <math_ldbl.h>
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#endif
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#endif /* _MATH_LDBL_H_IBM128_COMPAT */
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