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Comments in Rust

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This short article provides a brief overview of comments (non-doc comments) in Rust. A detailed explanation of doc comments, which are used for generating documentation, will be covered in a separate article.

Documentation

Comments in Rust are similar to those found in C, C++, and Java. Single-line comments start with //, and multi-line comments are enclosed between /* and */.

Single-Line Comments​

main.rs
// This is a single-line comment
fn main() {
    println!("Hello, World!"); // This is another single-line comment
}

Multi-Line Comments​

main.rs
/* This is a multi-line comment
   It can span multiple lines */
fn main() {
    println!("Hello, World!");
}