keil + c++code example

#include <world>

void main(void) {
    World world;

    world.run();
    for (;;) ;
}

Was there some more specific information you wanted to know? Note that the world object can be rather big so it may be needed to keep it as a global object.

See \Keil\arm\examples\c++ (only 2 examples - but usually enough to start). (uVision 4.6 - from 4.53-4.54 the path might have changed a bit).