mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-04 20:54:13 +00:00
34 lines
608 B
Rust
34 lines
608 B
Rust
|
|
|
|
|
|
const ONE : i64 = 1;
|
|
const NEG_ONE : i64 = -1;
|
|
const ZERO : i64 = 0;
|
|
|
|
#[allow(eq_op, no_effect, unnecessary_operation, double_parens)]
|
|
#[warn(identity_op)]
|
|
fn main() {
|
|
let x = 0;
|
|
|
|
x + 0;
|
|
x + (1 - 1);
|
|
x + 1;
|
|
0 + x;
|
|
1 + x;
|
|
x - ZERO; //no error, as we skip lookups (for now)
|
|
x | (0);
|
|
((ZERO)) | x; //no error, as we skip lookups (for now)
|
|
|
|
x * 1;
|
|
1 * x;
|
|
x / ONE; //no error, as we skip lookups (for now)
|
|
|
|
x / 2; //no false positive
|
|
|
|
x & NEG_ONE; //no error, as we skip lookups (for now)
|
|
-1 & x;
|
|
|
|
let u : u8 = 0;
|
|
u & 255;
|
|
}
|