lib/gcd.h

   1 /* Arithmetic.
   2    Copyright (C) 2001-2002, 2006, 2009-2024 Free Software Foundation, Inc.
   3    Written by Bruno Haible <bruno@clisp.org>, 2001.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation, either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program 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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _GCD_H
  19 #define _GCD_H
  20
  21 #ifdef __cplusplus
  22 extern "C" {
  23 #endif
  24
  25
  26 /* Return the greatest common divisor of a > 0 and b > 0.  */
  27 extern unsigned long gcd (unsigned long a, unsigned long b);
  28
  29
  30 #ifdef __cplusplus
  31 }
  32 #endif
  33
  34 #endif /* _GCD_H */