typedef vector template

Question

I'm trying to add some typedef to my class, but the compiler reports a syntax erron on the following code:

    template<class T>
    class MyClass{
        typedef std::vector<T> storageType; //this is fine
        typedef storageType::iterator iterator; //the error is here

but the next does not work too:

        typedef std::vector<T>::iterator iterator;

I was looking for the answers on many forum but i can't find a solution or workaround for this. Thank you for your help!

Answer 1

You are missing a typename :

typedef typename std::vector<T>::iterator iterator;

There are a lot of similar question. Eg take a look at the following:

• C++ template typename iterator

Answer 2

std::vector<T>::iterator is a dependent type so you need to add typename before it.

typedef typename std::vector<T>::iterator iterator;
        ^