GATE CS 2016 Set 1 — Question 22

MCQ+1 / -0.33EasyPointers & Pointer ArithmeticC ProgrammingProgramming & Data StructuresFunctions & Recursion

Programming & Data Structures → C Programming → Functions & Recursion

Last updated 5 September 2026

Question

Consider the following C program.void f(int, short); void main() { int i = 100; short s = 12; short *p = &s; __________ ; // call to f() } Which one of the following expressions, when placed in the blank above, will NOT result in a type checking error?

Correct answer (D) f(i, p) Solution The function prototype is void f(int, short); . It expects an int and a short as arguments and returns void . Let's analyze the options: (A) f(s, *s) : s is a short, so *s is invalid (dereferencing a non-pointer). Error. (B) i = f(i, s) : The function returns void, so assigning the result to i (an int) is invalid. Error. (C) f(i, *s) : s is a short, so *s is invalid. Error. (D) f(i, *p) : i is int (matches first parameter). p is short *, so *p is short (matches second parameter). The return type is ignored in an expression statement. This is valid. Therefore, (D) is the correct answer. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (D) f(i, p) Solution The function prototype is void f(int, short); . It expects an int and a short as arguments and returns void . Let's analyze the options: (A) f(s, *s) : s is a short, so *s is invalid (dereferencing a non-pointer). Error. (B) i = f(i, s) : The function returns void, so assigning the result to i (an int) is invalid. Error. (C) f(i, *s) : s is a short, so *s is invalid. Error. (D) f(i, *p) : i is int (matches first parameter). p is short *, so *p is short (matches second parameter). The return type is ignored in an expression statement. This is valid. Therefore, (D) is the correct answer.

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