Iterator with template no longer a type in g++3.?

[Xin Wang]

I tried to define a class like:

#include<list>
template <class State>
class Problem
{
.
.
.
list<State>::iterator itr;
.
.
.
}

The compiler keeps on complaining that list<State>::iterator is not a 
type, and itr is not declared. What is wrong here?
What should I do to avoid this?

Thanks!


Xin Wang