glibc/sysdeps/ieee754/ldbl-96/s_dfmal.c

35 lines
1.2 KiB
C

/* Fused multiply-add of long double (ldbl-96) value, narrowing the result
to double.
Copyright (C) 2021-2023 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/>. */
#define f32xfmaf64x __hide_f32xfmaf64x
#define f64fmaf64x __hide_f64fmaf64x
#include <math.h>
#undef f32xfmaf64x
#undef f64fmaf64x
#include <math-narrow.h>
double
__dfmal (long double x, long double y, long double z)
{
NARROW_FMA_ROUND_TO_ODD (x, y, z, double, union ieee854_long_double, l,
mantissa1, false);
}
libm_alias_double_ldouble (fma)