Rust Brain Teasers

Puzzle 20

Hello, Bonjour

hello_bonjour/src/main.rs

fn main() {
    let hello = || println!("Hello World");
    let hello = || println!("Bonjour le monde");
    hello();
}

Guess the Output
	Try to guess what the output is before moving to the next page.

The program will display the following output:

Bonjour le monde

Discussion

In Puzzle 16, ​Double or Nothing​, you saw that you cannot shadow functions with identical names—even if the parameter ...