40 lines
1.6 KiB
C
40 lines
1.6 KiB
C
/* Properties of long double type.
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Copyright (C) 2016-2019 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 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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/* This header is included by <sys/cdefs.h>.
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If long double is ABI-compatible with double, it should define
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__NO_LONG_DOUBLE_MATH to 1; otherwise, it should leave
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__NO_LONG_DOUBLE_MATH undefined.
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If this build of the GNU C Library supports both long double
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ABI-compatible with double and some other long double format not
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ABI-compatible with double, it should define
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__LONG_DOUBLE_MATH_OPTIONAL to 1; otherwise, it should leave
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__LONG_DOUBLE_MATH_OPTIONAL undefined.
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If __NO_LONG_DOUBLE_MATH is already defined, this header must not
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define anything; this is needed to work with the definition of
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__NO_LONG_DOUBLE_MATH in nldbl-compat.h. */
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/* In the default version of this header, long double is
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ABI-compatible with double. */
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#ifndef __NO_LONG_DOUBLE_MATH
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# define __NO_LONG_DOUBLE_MATH 1
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#endif
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