Pass ____ copies in the parameter value,and at the end of execution,copies out the final value of the parameter.
A) by value
B) by reference
C) by value-result
D) by address

Question

Quizplus · Accepted Answer

The by value-result parameter passing mechanism passes a copy of the actual parameter to the function for processing. The function operates on the copy, alters it according to its own requirements, and then returns a new copy of the result to the caller. At the end of execution, the final value of the parameter (i.e., the modified copy) is copied out. Therefore, option C is the best choice.

Pass ____ Copies in the Parameter Value,and at the End