Predefined Functions and User-Defined Functions

Predefined Functions and User-Defined Functions

“Predefined Functions and User-Defined Functions”  Please respond to the following:

Typically, when programmers are designing and writing a C++ application, they often come across sections of the application code where they can either use a predefined function or write a user-defined function. List at least three (3) criteria that you would use in order to decide whether to write a user-defined function or use a predefined function. Provide a rationale for your criteria.