rust-ape-example/src/bin/custom_types_constants.rs

// ./src/custom_types/constants.md


// Globals are declared outside all other scopes.
static LANGUAGE: &str = "Rust";
const THRESHOLD: i32 = 10;

fn is_big(n: i32) -> bool {
    // Access constant in some function
    n > THRESHOLD
}

fn part0() {
    let n = 16;

    // Access constant in the main thread
    println!("This is {}", LANGUAGE);
    println!("The threshold is {}", THRESHOLD);
    println!("{} is {}", n, if is_big(n) { "big" } else { "small" });

    // Error! Cannot modify a `const`.
//    THRESHOLD = 5;
    // FIXME ^ Comment out this line
}

pub fn main() {
	part0();
}