GATE | Gate IT 2007 | Question 33

Consider the program below in a hypothetical language which allows global variable and a choice of call by reference or call by value methods of parameter passing.

 int i ;
program main ()
{
    int j = 60;
    i = 50;
    call f (i, j);
    print i, j;
}
procedure f (x, y)
{           
    i = 100;
    x = 10;
    y = y + i ;
}

Which one of the following options represents the correct output of the program for the two parameter passing mechanisms?

(A)

Call by value : i = 70, j = 10; Call by reference : i = 60, j = 70

(B)

Call by value : i = 50, j = 60; Call by reference : i = 50, j = 70

(C)

Call by value : i = 10, j = 70; Call by reference : i = 100, j = 60

(D)

Call by value : i = 100, j = 60; Call by reference : i = 10, j = 70

Answer

Please comment below if you find anything wrong in the above post
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