-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
+/* ----------------------------------------------------------------------------
+ * $Id$
+ * ----------------------------------------------------------------------------
+ * Public Domain C Library - http://pdclib.sourceforge.net
+ * This code is Public Domain. Use, modify, and redistribute at will.
+ * --------------------------------------------------------------------------*/
-char * strcat( char * restrict s1, const char * restrict s2 ) { /* TODO */ };
+char * strcat( char * restrict dest, const char * restrict src )
+{
+ char * dest_p = dest;
+ if ( *dest_p != '\0' )
+ {
+ while ( *++dest_p != '\0' )
+ {
+ /* EMPTY */
+ }
+ }
+ while ( (*dest_p++ = *src++) != '\0' )
+ {
+ /* EMPTY */
+ }
+ return dest;
+}