Engineering Science 1036A/B Lecture Notes - Lecture 5: Function Overloading, Entire Function, Xcode

• School: Western University
• Department: Engineering Science
• Course: Engineering Science 1036A/B
• Professor: Quazi Rahman

Document Summary

Stored in the standard libraries such as or User only needs to know how to use it. Programmer writes the entire function definition (name, return type, number & type of parameters, and body) A user-defined function is defined outside the main () function. Below, a function has been declared as a separate entity from the main: A function signature will always have a return type (either a specific data type or void), name, and a parameter list. Example: int gradepaverage (string name, int numberofsubjects); A function may or may not return a value back to the calling function ( usually the main() ) When a function returns a value, the return type would be the data type of that value. In the example above, int is the data type of the returned value of the function. The function name can not be a keyword and it has to be a valid.