In C++, comments are special annotations in the code that are ignored by the compiler. They are used to provide explanations, descriptions, or notes about the code to make it more understandable and maintainable. Comments are essential for documenting code, explaining complex logic, and reminding programmers of areas that need further attention.
There are two types of comments
1. Single-line comments
These comments start with // and continue to the end of the line. They are used for brief explanations.
Syntax:
// This is a single-line comment
Example:
// Declare a variable a and initialize it to 20
int a= 20;
Multi-line Comments
These comments start with /* and end with */. They can span across multiple lines.
Syntax:
/* This is a multi-line
Comments */
Example:
/* This is a
multi-line comment
that spans multiple lines */
int b = 50;