1 files changed, 7 insertions, 0 deletions
diff --git a/common/str.h b/common/str.h
index 6b4475e1c4..ea2db1d1d6 100644
--- a/common/str.h
+++ b/common/str.h
@@ -234,6 +234,13 @@ public:
 	static String vformat(const char *fmt, va_list args);
 
 public:
+	typedef char          value_type;
+	/**
+	 * Unsigned version of the underlying type. This can be used to cast
+	 * individual string characters to bigger integer types without sign
+	 * extension happening.
+	 */
+	typedef unsigned char unsigned_type;
 	typedef char *        iterator;
 	typedef const char *  const_iterator;