Added a warning about missing test drivers.

[pdclib] / functions / string / strcat.c

diff --git a/functions/string/strcat.c b/functions/string/strcat.c
index cb0c0a128d83d93cdbd8e3d43229236dc6904fa4..f6a7d15f2246c456ef534a4d7850f3a8e62fd534 100644 (file)
--- a/functions/string/strcat.c
+++ b/functions/string/strcat.c
@@ -1,8 +1,24 @@
-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// 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 */ };
+/* $Id$ */
+
+/* Release $Name$ */
+
+/* strcat( char *, const char * )
+
+   This file is part of the Public Domain C Library (PDCLib).
+   Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <_PDCLIB_aux.h>
+
+char * strcat( char * _PDCLIB_restrict s1, const char * _PDCLIB_restrict s2 )
+{
+    char * rc = s1;
+    if ( *s1 )
+    {
+        while ( *++s1 );
+    }
+    while ( (*s1++ = *s2++) );
+    return rc;
+}
+
+#warning Test driver missing.