Add missing locale include, fixes #281

changelog.md

@@ -1,4 +1,5 @@
 HEAD
+- Add missing locale include. Thank you Toninoso for reporting this. #281
 - Refactors `asio_transport` endpoint and adds full documentation and exception
   free varients of all methods.
 - Removes `asio_transport` endpoint method cancel(). Use `stop_listen()` instead

websocketpp/utilities.hpp

@@ -32,6 +32,7 @@
 
 #include <algorithm>
 #include <string>
+#include <locale>
 
 namespace websocketpp {
 /// Generic non-websocket specific utility functions and data structures