-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-// Alternative spellings
-// ----------------------------------------------------------------------------
+/* ----------------------------------------------------------------------------
+ * $Id$
+ * ----------------------------------------------------------------------------
+ * Public Domain C Library - http://pdclib.sourceforge.net
+ * This code is Public Domain. Use, modify, and redistribute at will.
+ * ----------------------------------------------------------------------------
+ * Alternative spellings
+ * ----------------------------------------------------------------------------
+ * This header is part of a freestanding implementation
+ * --------------------------------------------------------------------------*/
-#ifndef __ISO646_H
-#define __ISO646_H __ISO646_H
+#ifndef _ISO646_H
+#define _ISO646_H _ISO646_H
-// ----------------------------------------------------------------------------
-// DEFINES
+/* ----------------------------------------------------------------------------
+ * DEFINES
+ * --------------------------------------------------------------------------*/
#define and &&
#define and_eq &=
#define xor ^
#define xor_eq ^=
-#endif // __ISO646_H
+#endif /* _ISO646_H */