In order to probe the language of D, Conway's Game of Life implemented.
Linking after failed make in qt_viewer dir:
cd qt_viewer && make
cd ..
dmd -gc (or -g ???) qt_viewer/*.o \
agregator.d automata.d celler.d \
changer.d complete_automata.d main.d \
-L-L/home/newmen/Qt-4.8.4/lib \
-L-lQtGui -L-lQtCore -L-lstdc++ \
-oflife