1  /* Copyright (C) 2007-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library.  If not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #define __llround	not___llround
      19  #define llround		not_llround
      20  #include <math.h>
      21  #include <math_ldbl_opt.h>
      22  #include <libm-alias-double.h>
      23  #undef __llround
      24  #undef llround
      25  
      26  long int
      27  __lround (double x)
      28  {
      29    double adj, y;
      30  
      31    adj = copysign (0.5, x);
      32    asm("addt/suc %1,%2,%0" : "=&f"(y) : "f"(x), "f"(adj));
      33    return y;
      34  }
      35  
      36  strong_alias (__lround, __llround)
      37  libm_alias_double (__lround, lround)
      38  libm_alias_double (__llround, llround)