rust/tests/ui/arithmetic.rs
2018-10-24 20:27:26 -07:00

73 lines
1.5 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::integer_arithmetic, clippy::float_arithmetic)]
#![allow(unused, clippy::shadow_reuse, clippy::shadow_unrelated, clippy::no_effect, clippy::unnecessary_operation)]
fn main() {
let i = 1i32;
1 + i;
i * 2;
1 %
i / 2; // no error, this is part of the expression in the preceding line
i - 2 + 2 - i;
-i;
i & 1; // no wrapping
i | 1;
i ^ 1;
i >> 1;
i << 1;
let f = 1.0f32;
f * 2.0;
1.0 + f;
f * 2.0;
f / 2.0;
f - 2.0 * 4.2;
-f;
// No errors for the following items because they are constant expressions
enum Foo {
Bar = -2,
}
struct Baz([i32; 1 + 1]);
union Qux {
field: [i32; 1 + 1],
}
type Alias = [i32; 1 + 1];
const FOO: i32 = -2;
static BAR: i32 = -2;
let _: [i32; 1 + 1] = [0, 0];
let _: [i32; 1 + 1] = {
let a: [i32; 1 + 1] = [0, 0];
a
};
trait Trait {
const ASSOC: i32 = 1 + 1;
}
impl Trait for Foo {
const ASSOC: i32 = {
let _: [i32; 1 + 1];
fn foo() {}
1 + 1
};
}
}