How can I write code to show itself

Question

How can I write a code to show itself (print code to console) using standard C++ only without any external library?

Answer 1

Tada: http://en.wikipedia.org/wiki/Quine_(computing)

On a slightly more pragmatic note, almost no one ever does this. It's pointless. If you want to distribute source code, just put it into a tarball or zip file like a sane person.