C - Comments

In the C programming language, comments are used to add explanatory or descriptive notes within the code. Comments are ignored by the compiler and do not affect the execution of the program. They are useful for providing information to other programmers or for documenting your code. There are two types of comments in C:

Single-line comments:

Single-line comments are used to comment a single line of code. They begin with two forward slashes (//) and continue until the end of the line. Anything written after the // will be considered a comment. Here's an example:

// This is a single-line comment
int x = 10; // Assigning the value 10 to variable x

Multi-line comments:

Multi-line comments, also known as block comments or /* ... /, allow commenting multiple lines of code. They begin with / and end with */. Everything between these delimiters is considered a comment. Multi-line comments are useful for adding detailed explanations or disabling blocks of code. Here's an example:

/*
This is a multi-line comment.
It can span multiple lines.
*/
int y = 20; /* Assigning the value 20 to variable y */

Comments are not only helpful for other programmers who read your code but can also serve as reminders or explanations for yourself when revisiting your code later. It's good practice to include clear and concise comments to enhance the readability and maintainability of your code.

Remember that comments are not executed by the compiler, so they have no impact on the behavior or performance of the program.