create a password with uppercase letters in rust

To create a password with uppercase letters in Rust, you can use the rand crate to generate a random password that includes uppercase letters.

Here's an example implementation:

main.rs
use rand::{thread_rng, Rng};

fn generate_password(length: usize) -> String {
    let mut password = String::with_capacity(length);

    while password.len() < length {
        let c = thread_rng().gen_range(b'A', b'Z' + 1) as char;
        password.push(c);
    }

    password
}

fn main() {
    let password = generate_password(10);
    println!("Generated password: {}", password);
}
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In this implementation, the generate_password function takes a length parameter that specifies the length of the password to generate. The function uses a while loop to add characters to the password until it reaches the desired length.

Inside the loop, the function generates a random uppercase letter using the gen_range method from the rand crate. The b'A' and b'Z' values represent the ASCII codes for uppercase letters, which are then converted to characters with as char.

Finally, the generated password is returned as a String and can be used in your application.