C++ template std::vector::iterator error
c++, iterator, templates, vector
Solution
`std::vector<T>::iterator` is a dependent name, so you need a `typename` here to specify that it refers to a type. Otherwise it is assumed to refer to a non-type:
typedef typename std::vector<T>::iterator iterator;
Problem
In C++, I am trying to get a `std::vector::iterator` for my templated class. However, when I compile it, I get the errors: `error C2146: syntax error : missing ';' before identifier 'iterator'`, `error C4430: missing type specifier - int assumed. Note: C++ does not support default-int`. I also get the warning: `warning C4346: 'std::vector<T>::iterator' : dependent name is not a type`: ``` #include <vector> template<class T> class v1{ typedef std::vector<T>::iterator iterator; // Error here }; class v2{ typedef std::vector<int>::iterator iterator; // (This works) }; ``` I have even tried ``` template<typename T> class v1{ typedef std::vector<T>::iterator iterator; }; ``` And ``` template<typename T = int> class v1{ typedef std::vector<T>::iterator iterator; }; ```