Almost.
for(; iter != endIter; ) {
if (Some Condition) {
iter = aMap.erase(iter);
} else {
++iter;
}
}
What you had originally would increment the iterator twice if you did erase an element from it; you could potentially skip over elements that needed to be erased.
This is a common algorithm I’ve seen used and documented in many places.
[EDIT] You are correct that iterators are invalidated after an erase, but only iterators referencing the element that is erased, other iterators are still valid. Hence using iter++
in the erase()
call.