mirror of git://gcc.gnu.org/git/gcc.git
34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
/* Return positive difference between arguments.
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Copyright (C) 1997-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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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 "quadmath-imp.h"
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__float128
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fdimq (__float128 x, __float128 y)
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{
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if (__builtin_islessequal (x, y))
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return 0;
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__float128 r = math_narrow_eval (x - y);
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if (isinfq (r) && !isinfq (x) && !isinfq (y))
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errno = ERANGE;
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return r;
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}
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