Which line will properly complete the definition for KW::iterator class postfix increment operator?
Iterator operator++(int) {
Iterator return_value = *this;
__________
Return return_value;
}
A) this++
B) ++this
C) --(*this)
D) ++(*this)

Question

Quizplus · Accepted Answer

The correct choice is D) `++(*this)`. This line correctly increments the current iterator object itself before returning the original value. The postfix increment operator should first save the current state, then increment the object, and finally return the original state. `++(*this)` correctly applies the increment operation to the dereferenced `this` pointer, which refers to the current object.

Which Line Will Properly Complete the Definition for KW::iterator Class