fn main() {
    let yen: char = '¥'; // 0xa5
    let c_cedilla: char = 'ç'; // 0xe7
    let thorn: char = 'þ'; // 0xfe
    let y_diaeresis: char = 'ÿ'; // 0xff
    let pi: char = 'Π'; // 0x3a0

    assert (yen as int == 0xa5);
    assert (c_cedilla as int == 0xe7);
    assert (thorn as int == 0xfe);
    assert (y_diaeresis as int == 0xff);
    assert (pi as int == 0x3a0);

    assert (pi as int == '\u03a0' as int);
    assert ('\x0a' as int == '\n' as int);

    let bhutan: str = "འབྲུག་ཡུལ།";
    let japan: str = "日本";
    let uzbekistan: str = "Ўзбекистон";
    let austria: str = "Österreich";

    let bhutan_e: str =
        "\u0f60\u0f56\u0fb2\u0f74\u0f42\u0f0b\u0f61\u0f74\u0f63\u0f0d";
    let japan_e: str = "\u65e5\u672c";
    let uzbekistan_e: str =
        "\u040e\u0437\u0431\u0435\u043a\u0438\u0441\u0442\u043e\u043d";
    let austria_e: str = "\u00d6sterreich";

    let oo: char = 'Ö';
    assert (oo as int == 0xd6);

    fn check_str_eq(a: str, b: str) {
        let i: int = 0;
        for ab: u8  in a {
            log i;
            log ab;
            let bb: u8 = b.(i);
            log bb;
            assert (ab == bb);
            i += 1;
        }
    }

    check_str_eq(bhutan, bhutan_e);
    check_str_eq(japan, japan_e);
    check_str_eq(uzbekistan, uzbekistan_e);
    check_str_eq(austria, austria_e);
}