Function format_float

cel/src/duration.rs:178–195

(buf: &mut [u8], mut v: u64, prec: usize)

}

fn format_float(buf: &mut [u8], mut v: u64, prec: usize) -> (usize, u64) {
    let mut w = buf.len();
    let mut print = false;
    for _ in 0..prec {
        let digit = v % 10;
        print = print || digit != 0;
        if print {
            w -= 1;
            buf[w] = digit as u8 + b'0';
        }
        v /= 10;
    }
    if print {
        w -= 1;
        buf[w] = b'.';
    }
    (w, v)
}

fn format_int(buf: &mut [u8], mut v: u64) -> usize {
    let mut w = buf.len();