C++ iterators problem

Question

I\'m working with iterators on C++ and I\'m having some trouble here. It says \"Debug Assertion Failed\" on expression (this->_Has_container()) on line interIterator++. Dist

Answer 1

vector's erase() returns a new iterator to the next element. All iterators to the erased element and to elements after it become invalidated. Your loop ignores this, however, and continues to use interIterator.

Your code should look something like this:

if (condition)
    interIterator = externIterator->erase(interIterator);
else
    ++interIterator;  // (generally better practice to use pre-increment)