Re-import from Subversion.

[pdclib] / functions / string / strcat.c

diff --git a/functions/string/strcat.c b/functions/string/strcat.c
index cb0c0a128d83d93cdbd8e3d43229236dc6904fa4..eab90c15b212a187bad807a59d9735fbdc0fa132 100644 (file)
--- a/functions/string/strcat.c
+++ b/functions/string/strcat.c
@@ -1,8 +1,23 @@
-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// 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;
+}