Why is this vector iterator not incrementable?

Question

I\'m trying to delete the vector\'s content and I\'m getting an error - vector iterator is not incrementable, why is that?

This is my destructor:

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Answer 1

Any iterator pointing to the deleted element or to the elements after the one that is deleted gets invalidated when the vector's erase method is called. Erase method returns a valid iterator pointing to the next element in the vector. You should use that iterator to continue your looping & not increment the invalidated iterator. You may also use the clear method to remove all the elements in the vector. However, you will need to remember to explicitly de-allocate any allocated memory for the elements.