C++ requires that a copy constructor's parameter be
A) an integer data type.
B) a floating-point data type.
C) a pointer variable.
D) a reference to an object.
E) None of the above

Question

Quizplus · Accepted Answer

A copy constructor's parameter should be a reference to an object, not a pointer or any other data type. The purpose of the copy constructor is to create a new object by copying an existing object, so it needs access to that existing object through a reference.

C++ Requires That a Copy Constructor's Parameter Be