Quines are self-copying programs. They take zero arguments but reproduce their own source-code.
This is a simple C++ quine with a lot of magic numbers that I hope to clean up at some point...
Compile with g++:
>> g++ a_cpp_quine.cpp -o a.out
>> ./a.out
Warning ~ This is a self-replicating program!
>> diff a_cpp_quine.cpp another_cpp_quine.cpp