-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #include <string.h>
-#include <memcopy.h>
 
 #undef strncpy
 
 #ifndef STRNCPY
-#define STRNCPY strncpy
+ #define STRNCPY strncpy
 #endif
 
 char *
 STRNCPY (char *s1, const char *s2, size_t n)
 {
-  char c;
-  char *s = s1;
-
-  --s1;
-
-  if (n >= 4)
-    {