Ytukyg

I'm new to the iterator class; not in how to use iterators for containers but how to implement an iterator class. I have two files, a .h and .cpp. Right now, I'm getting a compiler error in my .cpp file that displays "fatal error: 'iterator' is not a class, namespace, or enumeration". I don't understand why its telling me this.

Note: I'm sure there are other errors in my code, but right now I'm just trying to get the existing compiler error resolved.

Base.h

#ifndef Base_h

#define Base_h



class Base {

  protected: 

    std::vector<std::vector<std::string> > vec;



  public:



    class iterator {



      private:

        Base* p = nullptr;

        size_t x, y;



      public:

        iterator() = default;

        iterator(Base *, size_t, size_t);

        ~iterator();

        iterator &operator++();

        Base operator*() const;

    }     



    iterator begin() const;

    iterator end() const;

    // bunch of other iterator::functions and Base::functions

};



#endif

Base.cpp

iterator::iterator(Base *b, size_t i, size_t j): p(b), x(i), y(j) {}

iterator::~iterator();

// Bunch of other iterator::functions including Base::functions

Compiler Error

Base.cc:254:13: fatal error: 'iterator is not a class, namespace, or enumeration

iterator::iterator(Base *b, size_t i, size_t j): p(b), x(i), y(j) {}

^



/Library/Developer/CommandLineTools/usr/include/c++/v1/iterator:522:29: note: 'iterator' declared here

struct _LIBCPP_TEMPLATE_VIS iterator