A forward declaration is a statement that tells the C++ compiler about an upcoming function. The textbook calls these function prototypes. It’s diferent names for the same thing. Essentially, start of …

A function is a group of statements that together perform a task. Every C++ program has at least one function, which is main, and all the most trivial programs can define additional functions.

As one function calls another, they execute in a last-in, first-out fashion (i.e. the last one called is the first one to finish & return) Just like in the cafeteria the last plate put on the top of the stack is the first one …

A function prototype is a declaration of a function that tells the program about the type of value returned by the function, name of function, number and type of arguments. A function must be called by its …

In C++ there is the option to define a function with one or more default parameters. For example you could invoke a function to post a message with an optional prefix and sufix provided, and invoke in in …

Lecture 4: C++ Functions (Local & global variables) Functions in C++: A function is a block of code that performs a specific task. You can pass data, known as parameters, into a function. Every C++ …

Function Composition in C++: C++ supports function composition through libraries like the Standard Library (std::function, std::bind) and modern libraries like Range-v3.