rust/tests/ui/manual_div_ceil.rs

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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 + (y - 1)) / y; //~ ERROR: manually reimplementing `div_ceil`
let _ = ((y - 1) + x) / y; //~ ERROR: manually reimplementing `div_ceil`
let _ = (x + y - 1) / y; //~ ERROR: manually reimplementing `div_ceil`
let _ = (7_u32 + (4 - 1)) / 4; //~ ERROR: manually reimplementing `div_ceil`
let _ = (7_i32 as u32 + (4 - 1)) / 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;
}