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/* Subtract _Float128 values, converting the result to _Float64x.
Copyright (C) 2018-2020 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
<https://www.gnu.org/licenses/>. */
#include <math.h>
#include <math-narrow.h>
/* math_ldbl.h defines _Float128 to long double for this directory,
but when they are different, this function must be defined with
_Float128 arguments to avoid defining an alias with an incompatible
type. */
#undef _Float128
_Float64x
__f64xsubf128 (_Float128 x, _Float128 y)
{
#if __HAVE_FLOAT64X_LONG_DOUBLE && __HAVE_DISTINCT_FLOAT128
NARROW_SUB_ROUND_TO_ODD (x, y, _Float64x, union ieee854_long_double, l,
mantissa3);
#else
NARROW_SUB_TRIVIAL (x, y, _Float64x);
#endif
}
libm_alias_float64x_float128 (sub)
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