#if !defined( COMMON_H )
#define COMMON_H
+/*
+ * Common macros.
+ * Copyright (C) 2014 Michael Goehler
+ *
+ * This file is part of mdp.
+ *
+ * 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/>.
+ *
+ *
+ * macro: MAX returns the higher one of two input variables
+ * macro: MIN returns the lower one of two input variables
+ *
+ */
+
#define MAX(a, b) ({ typeof(a) _a = a; typeof(b) _b = b; _a > _b? _a : _b; })
#define MIN(a, b) ({ typeof(a) _a = a; typeof(b) _b = b; _a < _b? _a : _b; })
