Comments

In programming, often more than one person works on a project. You can probably imagine that code worked on by hundreds of people can be chaotic. For this reason, comments exist in almost all programming languages.

Comments mark a part of the program that the computer will ignore.

In C++ we have two types of comments:

1. Single-line comments, which start with two slashes //:

// This is a single-line comment
std::cout << "Hello" << std::endl; // This comment is at the end of the line

2. Multi-line comments, which start with /* and end with */:

/* 
Author: Roman Látal
Date: December 22, 2024
*/

std::cout << "Hello" << std::endl;

Comments are useful for:

• Explaining more complex parts of code
• Temporarily disabling parts of code during testing
• Documenting functions and their parameters
• Notes for other programmers (or for yourself in the future)