math/s_fmin_template.c

   1 /* Return minimum numeric value of X and Y.
   2    Copyright (C) 1997-2023 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 #include <math.h>
  20 #include <math-use-builtins.h>
  21
  22
  23 FLOAT
  24 M_DECL_FUNC (__fmin) (FLOAT x, FLOAT y)
  25 {
  26 #if M_USE_BUILTIN (FMIN)
  27   return M_SUF (__builtin_fmin) (x, y);
  28 #else
  29   if (islessequal (x, y))
  30     return x;
  31   else if (isgreater (x, y))
  32     return y;
  33   else if (issignaling (x) || issignaling (y))
  34     return x + y;
  35   else
  36     return isnan (y) ? x : y;
  37 #endif
  38 }
  39 declare_mgen_alias (__fmin, fmin);