sscanf requires stdio.h

Daniel Kroening · Daniel Kroening · commit 33728e667fc2 · 2016-12-05T17:03:34.000Z
diff --git a/src/ansi-c/literals/unescape_string.cpp b/src/ansi-c/literals/unescape_string.cpp
@@ -8,6 +8,7 @@ Author: Daniel Kroening, kroening@kroening.com
 
 #include <cassert>
 #include <cctype>
+#include <cstdio>
 
 #include "unescape_string.h"
 
