+
−/* Arithmetic.
+
−   Copyright (C) 2001-2002, 2006, 2009-2015 Free Software Foundation, Inc.
+
−   Written by Bruno Haible <bruno@clisp.org>, 2001.
+
−
+
−   This program is free software: you can redistribute it and/or modify
+
−   it under the terms of the GNU General Public License as published by
+
−   the Free Software Foundation; either version 3 of the License, or
+
−   (at your option) any later version.
+
−
+
−   This program is distributed in the hope that it will be useful,
+
−   but WITHOUT ANY WARRANTY; without even the implied warranty of
+
−   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+
−   GNU General Public License for more details.
+
−
+
−   You should have received a copy of the GNU General Public License
+
−   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
−
+
−#ifndef _GCD_H
+
−#define _GCD_H
+
−
+
−#ifdef __cplusplus
+
−extern "C" {
+
−#endif
+
−
+
−
+
−/* Return the greatest common divisor of a > 0 and b > 0.  */
+
−extern unsigned long gcd (unsigned long a, unsigned long b);
+
−
+
−
+
−#ifdef __cplusplus
+
−}
+
−#endif
+
−
+
−#endif /* _GCD_H */