Thread: How do you delete an STL map<long,class *>

New to STL. Still trying to get a handle on the right way to use it.

I have a map storing pointers to other objects:

Code:

class EwMultiTrace: public map<unsigned long, EwTrace*>

What is the correct way to make sure all the elements of the map are deleted?
Will the map call "delete()" for each stored element?
Do I have to delete each element manually?
If so, how to do that?

Code:

EwMultiTrace::~EwMultiTrace (void)
{
	EwMultiTrace::iterator item;

	for (item = this->begin(); item != this->end(); item++)
	{
		EwTrace *trace = item->second;
		delete trace;
	}
	clear ();
}

... this does not work. Removing elements from underneath the iterator creates memory faults.
maps have no "front()" to feed you the first element until empty.

What's the right way to go?