diff --git a/include/stdex/interval.h b/include/stdex/interval.h
index 5ef0d8734..d764ed345 100644
--- a/include/stdex/interval.h
+++ b/include/stdex/interval.h
@@ -45,6 +45,13 @@ namespace stdex
         ///
         inline T size() const { return start <= end ? end - start : 0; }
 
+        ///
+        /// Is interval empty?
+        ///
+        /// \returns true if interval is empty or false otherwise
+        ///
+        inline bool empty() const { return start >= end; }
+
         ///
         /// Is interval valid?
         ///