Vector iterators

Question

I have a the following code.

vector* irds = myotherobj->getIRDs();//gets a pointer to the vector
for(vector::iterator it = ir         


        

Answer 1

You need to use != with iterators to test for the end, not < like you would with pointers. operator< happens to work with vector iterators, but if you switch containers (to one like list) your code will no longer compile, so it's generally good to use !=.

Also, an iterator is not the type that it points to, so don't try to cast it. You can use the overloaded operator-> on iterators.

vector* irds = myotherobj->getIRDs();//gets a pointer to the vector
for(vector::iterator it = irds->begin(); it != irds->end(); ++it)
{
    it->dosomething();
}