src/tools/clippy/tests/ui/manual_div_ceil.fixed


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#![warn(clippy::manual_div_ceil)]

fn main() {
    let x = 7_u32;
    let y = 4_u32;
    let z = 11_u32;

    // Lint
    let _ = x.div_ceil(y); //~ ERROR: manually reimplementing `div_ceil`
    let _ = x.div_ceil(y); //~ ERROR: manually reimplementing `div_ceil`
    let _ = x.div_ceil(y); //~ ERROR: manually reimplementing `div_ceil`

    let _ = 7_u32.div_ceil(4); //~ ERROR: manually reimplementing `div_ceil`
    let _ = (7_i32 as u32).div_ceil(4); //~ ERROR: manually reimplementing `div_ceil`

    // No lint
    let _ = (x + (y - 2)) / y;
    let _ = (x + (y + 1)) / y;

    let _ = (x + (y - 1)) / z;

    let x_i = 7_i32;
    let y_i = 4_i32;
    let z_i = 11_i32;

    // No lint because `int_roundings` feature is not enabled.
    let _ = (z as i32 + (y_i - 1)) / y_i;
    let _ = (7_u32 as i32 + (y_i - 1)) / y_i;
    let _ = (7_u32 as i32 + (4 - 1)) / 4;
}

fn issue_13843() {
    let x = 3usize;
    let _ = 2048_usize.div_ceil(x);

    let x = 5usize;
    let _ = 2048usize.div_ceil(x);

    let x = 5usize;
    let _ = 2048_usize.div_ceil(x);

    let x = 2048usize;
    let _ = x.div_ceil(4);

    let _: u32 = 2048_u32.div_ceil(6);
    let _: usize = 2048_usize.div_ceil(6);
    let _: u32 = 0x2048_u32.div_ceil(0x6);

    let _ = 2048_u32.div_ceil(6u32);

    let _ = 1_000_000_u32.div_ceil(6u32);
}

fn issue_13950() {
    let x = 33u32;
    let _ = x.div_ceil(8);
    let _ = x.div_ceil(8);

    let y = -33i32;
    let _ = (y + -8) / -7;
    let _ = (-8 + y) / -7;
    let _ = (y - 8) / -7;
}