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// run-rustfix

#![allow(unused, dead_code)]
#![warn(clippy::manual_is_ascii_check)]

fn main() {
    assert!('x'.is_ascii_lowercase());
    assert!('X'.is_ascii_uppercase());
    assert!(b'x'.is_ascii_lowercase());
    assert!(b'X'.is_ascii_uppercase());

    let num = '2';
    assert!(num.is_ascii_digit());
    assert!(b'1'.is_ascii_digit());
    assert!('x'.is_ascii_alphabetic());

    assert!(matches!('x', 'A'..='Z' | 'a'..='z' | '_'));

    b'0'.is_ascii_digit();
    b'a'.is_ascii_lowercase();
    b'A'.is_ascii_uppercase();

    '0'.is_ascii_digit();
    'a'.is_ascii_lowercase();
    'A'.is_ascii_uppercase();

    let cool_letter = &'g';
    cool_letter.is_ascii_digit();
    cool_letter.is_ascii_lowercase();
    cool_letter.is_ascii_uppercase();
}

#[clippy::msrv = "1.23"]
fn msrv_1_23() {
    assert!(matches!(b'1', b'0'..=b'9'));
    assert!(matches!('X', 'A'..='Z'));
    assert!(matches!('x', 'A'..='Z' | 'a'..='z'));
}

#[clippy::msrv = "1.24"]
fn msrv_1_24() {
    assert!(b'1'.is_ascii_digit());
    assert!('X'.is_ascii_uppercase());
    assert!('x'.is_ascii_alphabetic());
}

#[clippy::msrv = "1.46"]
fn msrv_1_46() {
    const FOO: bool = matches!('x', '0'..='9');
}

#[clippy::msrv = "1.47"]
fn msrv_1_47() {
    const FOO: bool = 'x'.is_ascii_digit();
}