/*
* Common macros.
- * Copyright (C) 2014 Michael Goehler
+ * Copyright (C) 2018 Michael Goehler
*
* This file is part of mdp.
*
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*
+ * type: bool variable stores only true or false.
+ *
* macro: MAX returns the higher one of two input variables
* macro: MIN returns the lower one of two input variables
*
*/
+#if defined( __STDC__ ) // for standard C compiler
+#if __STDC_VERSION__ >= 199901L // for C99 and later
+#include <stdbool.h>
+#else // __STDC_VERSION__ >= 199901L
+#if !defined( bool )
+typedef enum {
+ false = 0,
+ true = 1
+} bool;
+#endif // !defined( bool )
+#endif // __STDC_VERSION__ >= 199901L
+#else // defined( __STDC__ )
+#define bool int
+#define true 1
+#define false 0
+#endif // defined( __STDC__ )
+
#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; })
