mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-14 08:57:30 +00:00
91 lines
2.1 KiB
Rust
91 lines
2.1 KiB
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
|
|
|
|
|
|
|
|
#![warn(clippy::invalid_upcast_comparisons)]
|
|
#![allow(unused, clippy::eq_op, clippy::no_effect, clippy::unnecessary_operation, clippy::cast_lossless)]
|
|
|
|
fn mk_value<T>() -> T { unimplemented!() }
|
|
|
|
fn main() {
|
|
let u32: u32 = mk_value();
|
|
let u8: u8 = mk_value();
|
|
let i32: i32 = mk_value();
|
|
let i8: i8 = mk_value();
|
|
|
|
// always false, since no u8 can be > 300
|
|
(u8 as u32) > 300;
|
|
(u8 as i32) > 300;
|
|
(u8 as u32) == 300;
|
|
(u8 as i32) == 300;
|
|
300 < (u8 as u32);
|
|
300 < (u8 as i32);
|
|
300 == (u8 as u32);
|
|
300 == (u8 as i32);
|
|
// inverted of the above
|
|
(u8 as u32) <= 300;
|
|
(u8 as i32) <= 300;
|
|
(u8 as u32) != 300;
|
|
(u8 as i32) != 300;
|
|
300 >= (u8 as u32);
|
|
300 >= (u8 as i32);
|
|
300 != (u8 as u32);
|
|
300 != (u8 as i32);
|
|
|
|
// always false, since u8 -> i32 doesn't wrap
|
|
(u8 as i32) < 0;
|
|
-5 != (u8 as i32);
|
|
// inverted of the above
|
|
(u8 as i32) >= 0;
|
|
-5 == (u8 as i32);
|
|
|
|
// always false, since no u8 can be 1337
|
|
1337 == (u8 as i32);
|
|
1337 == (u8 as u32);
|
|
// inverted of the above
|
|
1337 != (u8 as i32);
|
|
1337 != (u8 as u32);
|
|
|
|
|
|
// Those are Ok:
|
|
(u8 as u32) > 20;
|
|
42 == (u8 as i32);
|
|
42 != (u8 as i32);
|
|
42 > (u8 as i32);
|
|
(u8 as i32) == 42;
|
|
(u8 as i32) != 42;
|
|
(u8 as i32) > 42;
|
|
(u8 as i32) < 42;
|
|
|
|
(u8 as i8) == -1;
|
|
(u8 as i8) != -1;
|
|
(u8 as i32) > -1;
|
|
(u8 as i32) < -1;
|
|
(u32 as i32) < -5;
|
|
(u32 as i32) < 10;
|
|
|
|
(i8 as u8) == 1;
|
|
(i8 as u8) != 1;
|
|
(i8 as u8) < 1;
|
|
(i8 as u8) > 1;
|
|
(i32 as u32) < 5;
|
|
(i32 as u32) < 10;
|
|
|
|
-5 < (u32 as i32);
|
|
0 <= (u32 as i32);
|
|
0 < (u32 as i32);
|
|
|
|
-5 > (u32 as i32);
|
|
-5 >= (u8 as i32);
|
|
|
|
-5 == (u32 as i32);
|
|
}
|