This course helps you learn C++ programming fundamentals through execution sheets and flowcharts, making it ideal for C++ for beginners and aspiring C++ developers.

cpp.tar.gz

C++ is a versatile language known for its efficiency and flexibility, widely used in industries like game development, finance, and system programming. This course dives deep into C++ programming foundations, focusing on practical problem-solving techniques.
You will start by learning basic problem-solving skills using simple programs and execution sheets. Then, you'll explore decision-making, branching, loops, and manipulation of strings and arrays using C++ programming. Finally, the course will cover functions and complex program structures, ensuring a comprehensive grasp of the language's capabilities.
By the end, you will be equipped with problem-solving skills, a solid understanding of C++ basics, and confidence in writing structured code, setting you on the path to becoming a proficient C++ developer.

Learn C++

# Function
We can divide a program into procedural components or modules called **functions** in C++. We are already familiar with a function, `main()`. Functions can be reused in a programming technique called the **modular** or **procedural approach**, also known as the divide and conquer approach. We should always try to design functions that can be copied and reused in other programs too.







Broadly, there are two types of functions, which we’ll explore in the following sections.



## Structure of a function

The following slides illustrate various parts of a **function definition**:

> A **function name** can only contain letters (`A`—`Z` and `a`—`z`) and the underscore symbol (`_`). It may also contain digits (`0`–`9`), but the function name can’t start with those. For example, `Key_2` is a valid function name, but `2_key` is not. Function names are case-sensitive, meaning that `name`, `Name`, and `NAME` are three different functions.

There are two main parts of a function definition: 
* **Header**: The first line, ending with closing parenthesis `)`. 
* **Body**: The block of statements below the function header starting with an opening brace `{` and ending with a closing brace `}`. 

The function header contains the keyword `void` (it means that the function does not have a return value), the function name `sayHello`, and the parameters in `()`. All the statements in the function body are written as a block of code enclosed in `{` and `}`. We cannot write the body of the function without braces. 

# Function call
We can call a function by writing the function name followed by `()` ending with `;`.
The following program demonstrates the creation of a function and a function call.

Learn to divide a program into functions or subprograms in C++.


Simple User-defined Functions

Learn to divide a program into functions or subprograms in C++.

About the Course

C++ Basics

Loops in C++

C++ Strings and Arrays

Functions in C++

Wrap Up

Simple User-defined Functions

Function

Structure of a function