Fundamentals of Object-Oriented Programming - C++ - Functions

The video tutorial explains how to create and use functions in C++. It starts with a simple function to print stars, then demonstrates how to declare and call functions. The tutorial enhances a program to display gas prices and introduces a custom function that accepts parameters to print different characters. The importance of function prototypes for readability and error prevention is also highlighted.

What is the purpose of the 'custom line' function?

How can you modify a function to accept parameters?

Explain the process of printing different characters using a function.

What error might occur if the function prototype does not match the function definition?