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What will be output of following program? #include int main() { void (p)(); int (q)(); int (r)(); p = clrscr; q = getch; r = puts; (p)(); (r)("www.curioustab.com"); (q)(); return 0; }

NULL
www.curioustab.com
Compilation error
None of above

Correct Answer: www.curioustab.com

Explanation:

p is pointer to function whose parameter is void and return type is also void. r and q is pointer to function whose parameter is void and return type is int . So they can hold the address of such function.

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What will be output of following program? #include int main() { void (*p)(); int (*q)(); int (*r)(); p = clrscr; q = getch; r = puts; (*p)(); (*r)("www.curioustab.com"); (*q)(); return 0; }

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What will be output of following program? #include int main() { void (p)(); int (q)(); int (r)(); p = clrscr; q = getch; r = puts; (p)(); (r)("www.curioustab.com"); (q)(); return 0; }