rustHow to get error line number in Rust

Rust provides a macro called line! which can be used to get the line number of the code.

Example code:

fn main() {
    println!("This is line number {}", line!());
}

Output

This is line number 2

Explanation:

• line!(): This macro returns the line number of the code.
• println!: This macro is used to print the output to the console.

Helpful links:

• https://doc.rust-lang.org/std/macro.line.html
• https://doc.rust-lang.org/std/macro.println.html

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