Question

which is not an element of user defined function

Answer 1

Answer:

Functions are blocks of codes to perform specific tasks and return the result. However it is not mandatory for a function to return something. Also a function can perform more than a single task. User defined functions are basic building blocks of a program and can be found in the basic structure of C program.

Functions can be classified into two categories, namely, library functions and user-defined functions. User defined functions are those functions which do not ship as C (or other language) library function. The user or the developer develops or writes the function as part of the program they are writing. These functions are not available unless defined on included.