diff -r 39e69d78b01d -r c3b6ff227481 src/ucx/string.h
--- a/src/ucx/string.h	Wed May 02 20:55:23 2018 +0200
+++ b/src/ucx/string.h	Wed May 02 21:45:52 2018 +0200
@@ -58,6 +58,12 @@
 /** Shortcut for the conversion of a C string to a <code>sstr_t</code>. */
 #define S(s) sstrn((char*)s, sizeof(s)-1)
 
+/** Expands a sstr_t to printf arguments. */
+#define SFMT(s) (int) (s).length, (s).ptr
+
+/** Format specifier for a sstr_t. */
+#define PRIsstr ".*s"
+
 #ifdef	__cplusplus
 extern "C" {
 #endif