What is "namespace clt and dmp"?

[UCLA]

I'm trying to implement a vector in c++.

Found this online: http://doingmyprogramming.com/2013/06/25/implementing-a-vector-in-c-working-smarter-not-harder/

I'm confused as to what namespace clt & namespace dmp are.

Thanks!

[SamuelAdams]

Looks like he found the answer

http://stackoverflow.com/questions/31910362/what-is-namespace-clt-and-dmp