How to check if the iterator is initialized?

Question

If I use a default constructor for an iterator, how to check if it was assigned later on?

For pointers, I could do this :

int *p = NULL;
/// some code
         


        

Answer 1

I used the following solution:

const MyList_t::const_iterator NullIterator(NULL);
const_iterator MyList_t::MyIterator;

Then a check is possible:

if (NullIterator != MyIterator) {}