rust/tests/ui/absurd-extreme-comparisons.rs
2020-04-08 00:43:27 +02:00

62 lines
1.2 KiB
Rust

#![warn(clippy::absurd_extreme_comparisons)]
#![allow(
unused,
clippy::eq_op,
clippy::no_effect,
clippy::unnecessary_operation,
clippy::needless_pass_by_value
)]
#[rustfmt::skip]
fn main() {
const Z: u32 = 0;
let u: u32 = 42;
u <= 0;
u <= Z;
u < Z;
Z >= u;
Z > u;
u > u32::MAX;
u >= u32::MAX;
u32::MAX < u;
u32::MAX <= u;
1-1 > u;
u >= !0;
u <= 12 - 2*6;
let i: i8 = 0;
i < -127 - 1;
i8::MAX >= i;
3-7 < i32::MIN;
let b = false;
b >= true;
false > b;
u > 0; // ok
// this is handled by clippy::unit_cmp
() < {};
}
use std::cmp::{Ordering, PartialEq, PartialOrd};
#[derive(PartialEq, PartialOrd)]
pub struct U(u64);
impl PartialEq<u32> for U {
fn eq(&self, other: &u32) -> bool {
self.eq(&U(u64::from(*other)))
}
}
impl PartialOrd<u32> for U {
fn partial_cmp(&self, other: &u32) -> Option<Ordering> {
self.partial_cmp(&U(u64::from(*other)))
}
}
pub fn foo(val: U) -> bool {
val > u32::MAX
}
pub fn bar(len: u64) -> bool {
// This is OK as we are casting from target sized to fixed size
len >= usize::MAX as u64
}