Added explicit casts when assigning numbers to enums, required if compiling with g++.
Added explicit casts when assigning numbers to enums, required if compiling with g++.

Gerii/ustl,PetteriAimonen/ustl,NoSuchProcess/ustl,uusirant/ustl-cmake,dgruss/ustl,NoSuchProcess/ustl,szastupov/ustl,msharov/ustl,dgruss/ustl,PetteriAimonen/ustl,msharov/ustl,PetteriAimonen/ustl,szastupov/ustl,uusirant/ustl-cmake,Gerii/ustl