Included <string> in rx-includes.hpp to compile rxcpp on platform where <string> (#547)

kamleshbhalui · web-flow · commit ec38393f502e · 2021-08-26T11:39:04.000-07:00
is not included indirectly.
diff --git a/Rx/v2/src/rxcpp/rx-includes.hpp b/Rx/v2/src/rxcpp/rx-includes.hpp
@@ -166,6 +166,8 @@
 
 #include <cstddef>
 
+#include <string>
+
 #include <iostream>
 #include <iomanip>
 
