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Computer Science · Q322

Object Oriented Programming Using C++

Engineering and GATE · Computer Science · question 322

Q322

Which is a good reason for passing a variable's address to a function?

A.
the function will have a copy of the variable
B.
the function cannot change the value of the variable in the calling function
C.
C++ requires that all variables used in a function be passed by address
D.
the function needs to change multiple variable values
E.
the called function can change the value of the variable in the calling function
Answer

Answer: Option E

Solution

Answer: Option E
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