1  /* Add long double (ldbl-128) values, narrowing the result to double.
       2     Copyright (C) 2018-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #define f32xaddf64x __hide_f32xaddf64x
      20  #define f32xaddf128 __hide_f32xaddf128
      21  #define f64addf64x __hide_f64addf64x
      22  #define f64addf128 __hide_f64addf128
      23  #include <math.h>
      24  #undef f32xaddf64x
      25  #undef f32xaddf128
      26  #undef f64addf64x
      27  #undef f64addf128
      28  
      29  #include <math-narrow.h>
      30  
      31  double
      32  __daddl (_Float128 x, _Float128 y)
      33  {
      34    NARROW_ADD_ROUND_TO_ODD (x, y, double, union ieee854_long_double, l,
      35  			   mantissa3);
      36  }
      37  libm_alias_double_ldouble (add)