Update ui_widget.hpp

Added include of <functional> to allow for a clean build with g++ 7.2.1 20170904
This commit is contained in:
RndmNmbr
2018-02-03 13:41:40 -05:00
committed by GitHub
parent 1eb6f10fa6
commit 36e5682406

View File

@@ -32,6 +32,7 @@
#include <memory> #include <memory>
#include <vector> #include <vector>
#include <string> #include <string>
#include <functional>
namespace ui { namespace ui {