Parameter-Passing
Question 1 |
The following program fragment is written in a programming language that allows variables and does not allow nested declarations of functions.
global int i = 100, j = 5;
void P(x)
{
int i = 10;
print(x + 10);
i = 200;
j = 20;
print(x);
}
main()
{
P(i + j);
}
If the programming language uses static scoping and call by need parameter passing mechanism, the values printed by the above program are
115, 220 | |
25, 220 | |
25, 15 | |
115, 105 |
Question 1 Explanation:
P(i+j)
P(100+5) = P(105)
→void P(105)
{
int i=10;
print (x+10); ⇒ 105+10=115 prints
i=200;
j = 20;
print (x); ⇒ x=105 prints
}
115, 105 prints
P(100+5) = P(105)
→void P(105)
{
int i=10;
print (x+10); ⇒ 105+10=115 prints
i=200;
j = 20;
print (x); ⇒ x=105 prints
}
115, 105 prints
There is 1 question to complete.