C++ list::iterator cant be used

g++ compiler may give this error: expected `;' before 'it'

template <typename T>
class MyClass
{   public:
  void func() 
  { 
    std::list<T>::iterator it;
  }
};

The solution is simple, you need add "typename" in front of your declaration of iterator.

typename std::list::iterator it;

This is needed when you have a new type declared which is dependant on one or more of the template parameters.

You may also find an answer from here:
http://stackoverflow.com/questions/2539709/c-listtiterator-cant-be-used-in-derived-class-template