sysdeps/ieee754/ldbl-96/s_dfmal.c

   1 /* Fused multiply-add of long double (ldbl-96) value, narrowing the result
   2    to double.
   3    Copyright (C) 2021-2023 Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <https://www.gnu.org/licenses/>.  */
  19
  20 #define f32xfmaf64x __hide_f32xfmaf64x
  21 #define f64fmaf64x __hide_f64fmaf64x
  22 #include <math.h>
  23 #undef f32xfmaf64x
  24 #undef f64fmaf64x
  25
  26 #include <math-narrow.h>
  27
  28 double
  29 __dfmal (long double x, long double y, long double z)
  30 {
  31   NARROW_FMA_ROUND_TO_ODD (x, y, z, double, union ieee854_long_double, l,
  32                            mantissa1, false);
  33 }
  34 libm_alias_double_ldouble (fma)