diff -r 21274e5950af -r a1f4cb076d2f src/ucx/ucx.c
--- a/src/ucx/ucx.c	Tue Aug 13 22:14:32 2019 +0200
+++ b/src/ucx/ucx.c	Sat Sep 24 16:26:10 2022 +0200
@@ -2,14 +2,23 @@
  * @mainpage UAP Common Extensions
  * Library with common and useful functions, macros and data structures.
  * <p>
- * Latest available source:<br/>
+ * Latest available source:<br>
+ * <a href="https://sourceforge.net/projects/ucx/files/">
+ * https://sourceforge.net/projects/ucx/files/</a>
+ * </p>
+ * 
+ * <p>
+ * Repositories:<br>
+ * <a href="https://sourceforge.net/p/ucx/code">
+ * https://sourceforge.net/p/ucx/code</a>
+ * -&nbsp;or&nbsp;-
  * <a href="https://develop.uap-core.de/hg/ucx">
  * https://develop.uap-core.de/hg/ucx</a>
  * </p>
  * 
  * <h2>LICENCE</h2>
  * 
- * Copyright 2016 Olaf Wintermann. All rights reserved.
+ * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -34,4 +43,20 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "ucx.h"
+#include "ucx/ucx.h"
+
+int ucx_szmul_impl(size_t a, size_t b, size_t *result) {
+    if(a == 0 || b == 0) {
+        *result = 0;
+        return 0;
+    }
+    size_t r = a * b;
+    if(r / b == a) {
+        *result = r;
+        return 0;
+    } else {
+        *result = 0;
+        return 1;
+    }
+}
+