Remove from this set the value_type object at the specified position, and return an iterator referring to the element immediately following the removed element, or to the past-the-end position if the removed element was the last element in the sequence of elements maintained by this set. This method invalidates only iterators and references to the removed element and previously saved values of the end() iterator. The behavior is undefined unless position refers to a value_type object in this set.
Declared in <bslstl_set.h>
set<KEY, COMPARATOR, ALLOCATOR>::iterator
erase(const_iterator position);