Recently I learned the beautiful language D, which is so more plastic and helps yourself writing stable fast programs. But its not popular... because few code written on D and so more on C and C++. Therefore after I read the book of Andrei Alexanderscu where author very superficially described question about linking of D library to C++ code, I tried learn it myself and written some code on D where defined function that returns an instance of CompleteAutomata class …