Determine Output - C Programming MCQs

Rajeev Malhotra • 3.97K Points
Extraordinary

Q. Determine Output

Code:

void main()
{
      char string[]="Hello World";
      display(string);
}
void display(char *string)
{
      printf("%s", string);
}

(A) will print Hello World
(B) Compiler Error
(C) Can't Say
(D) None of These

Correct Answer - Option(B)
Views: 104
Filed under category C Programming

Explanation by: Rajeev Malhotra

Type mismatch in redeclaration of function display.
In third line, when the function display is encountered, the compiler doesn't know anything about the function display. It assumes the arguments and return types to be integers, (which is the default type). When it sees the actual function display, the arguments and type contradicts with what it has assumed previously. Hence a compile time error occurs.

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