In C++, you can pass a variable by reference and still prevent the function from changing its value by using the keyword ____ in the formal parameter declaration.
A) automatic
B) private
C) static
D) const

Question

Quizplus · Accepted Answer

The keyword "const" in the formal parameter declaration ensures that the function cannot change the value of the variable passed by reference.

In C++, You Can Pass a Variable by Reference and Still