Quiz6: Functions in C

Which of the following is true about return type of functions in C?

• Functions can return any type

• Functions can return any type except array and functions

• Functions can return any type except array, functions, function pointer

• Functions can only return integer, double and character

The _______________ method of passing arguments to a function copies the actual value of an argument into the formal parameter of the function.

• call by value

• call by reference

In C, what is the meaning of following function prototype with void parameter list:

void fun(void)

{

/* .... */

}

• Function can be called with any number of parameters of any types

• Function can only be called without any parameter

• Function can be called with one integer parameter.

Which of the following is a complete correct function?

• int funct();

• void funct(int){ printf( \Hello");

• int funct(int x){ x = x +1; return x; }

• void funct(x){ printf( "Hello\n");}

What is the return type of the function with prototype: "int func(char x, float v, double t);"?

• char

• int

• float

• double

A ____________ tells the compiler about a function's name, return type, and parameters.

• function declaration

• function definition

• function calling

While creating a C function, you give a definition of what the function has to do. To use a function, you will have to ___________ to perform the defined task.

• call the function

• declare the function

• define the function

Which following is not a proper function declaration/prototype?

• int funct(char x, char y);

• double funct(char x)

• void funct();

• char x();

Which of the following is a valid function call (assuming the function exists)?

• funct;

• funct x, y;

• funct();

• int funct();

What is the output of the above program?

• 3

• 5

• compile time error

• nothing