Question

What is the meaning of function prototype?

Answer 1

In computer programming, a function prototype or function interface is a declaration of a function  that specifies the function's name and type signature (arity, data types of parameters, and return type), but omits the function body.

Answer 2

$<b>$A function prototype is a declaration of the function that tells the program about the type of value return by the function the number and type of arguments.

Example: int sum(int a, int b);