-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
-
-int strncmp( const char * s1, const char * s2, size_t n ) { /* TODO */ };
+/* $Id$ */
+
+/* Release $Name$ */
+
+/* strncmp( const char *, const char *, size_t )
+
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <string.h>
+
+int strncmp( const char * s1, const char * s2, size_t n )
+{
+ while ( n && ( *s1 == *s2 ) )
+ {
+ ++s1;
+ ++s2;
+ --n;
+ }
+ if ( ( n == 0 ) )
+ {
+ return 0;
+ }
+ else
+ {
+ return ( *s1 - *s2 );
+ }
+}
+
+#warning Test driver missing.
+
+#ifdef TEST
+int main()
+{
+ return 0;
+}
+#endif