Fundamentals of Object-Oriented Programming - C++ - Variable Scope

The video tutorial explains the concept of variable scope in programming, detailing three types of variable declarations: local variables within functions or blocks, variables in function parameters, and global variables outside any function. It demonstrates how these variables operate within their respective scopes, using examples to illustrate local and global variable accessibility. The tutorial also highlights common errors when variables are used outside their declared scope, emphasizing the importance of correct variable declaration for effective programming.

How can you declare a variable inside a function parameter? Provide an example.

What error occurs when trying to use a variable outside its declared scope? Give an example.