What does enabling STL iterator debugging really do?

Question

I\'ve enabled iterator debugging in an application by defining

_HAS_ITERATOR_DEBUGGING = 1

I was expecting this to really just check vector

Answer 1

As far as I understand:

_HAS_ITERATOR_DEBUGGING will display a dialog box at run time to assert any incorrect iterator use including:

1) Iterators used in a container after an element is erased

2) Iterators used in vectors after a .push() or .insert() function is called