initial

vnproglib/c/include/vn/bool.h

@@ -0,0 +1,37 @@
+#ifndef VNBOOL_H_INCLUDED
+#define VNBOOL_H_INCLUDED
+
+/** \brief Boolean definition. */
+
+#include "vn/util/compiler.h"
+#include "vn/int.h"
+
+#if !defined(__cplusplus)
+
+	#if VN_HAVE_STDBOOL_H
+		#include <stdbool.h>
+	#else
+		#if !defined(__GNUC__)
+			/* _Bool builtin type is included in GCC. */
+			/* ISO C Standard: 5.2.5 An object declared as type _Bool is large
+			* enough to store the values 0 and 1. */
+			typedef int8_t _Bool;
+		#endif
+
+		/* ISO C Standard: 7.16 Boolean type */
+
+		#if defined(__STDC__) && defined(__GNUC__)
+			/* Avoid warning "ISO C90/89 does not support boolean types" */
+			#define bool int8_t
+		#else
+			#define bool _Bool
+		#endif
+
+		#define true 1
+		#define false 0
+		#define __bool_true_false_are_defined 1
+	#endif
+
+#endif
+
+#endif