Introduction to Function Prototype in C. … A function prototype is a declaration in the code that instructs the compiler about the data type of the function, arguments and parameter list. As we all know that a block of code which performs a specific task is called as a function.

What is prototype in program?

1) In software development, a prototype is a rudimentary working model of a product or information system, usually built for demonstration purposes or as part of the development process. … 2) In prototype-based programming, a prototype is an original object; new objects are created by copying the prototype.

What is meaning of prototype of function?

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.