Why the std::queue has no method clear()?

Question

Possible Duplicate:
Why don't the standard C++ container adaptors provide a clear function?

What is the rationale behind not adding the clear() method to the std::queue? All other containers have it.

I know I can clear a queue like this :

std::queue< int > q;
q = std::queue< int >();

but this looks better :

std::queue< int > q;
q.clear();