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#![warn(clippy::integer_arithmetic, clippy::float_arithmetic)]
#![allow(clippy::no_effect, clippy::unnecessary_operation, clippy::op_ref)]
#[rustfmt::skip]
fn main() {
let mut i = 1i32;
let mut var1 = 0i32;
let mut var2 = -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;
i << 1;
// no error, overflows are checked by `overflowing_literals`
-1;
-(-1);
i & 1; // no wrapping
i | 1;
i ^ 1;
i += 1;
i -= 1;
i *= 2;
i /= 2;
i /= 0;
i /= -1;
i /= var1;
i /= var2;
i %= 2;
i %= 0;
i %= -1;
i %= var1;
i %= var2;
i <<= 3;
i >>= 2;
// no errors
i |= 1;
i &= 1;
i ^= i;
// 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
};
}
}
// warn on references as well! (#5328)
pub fn int_arith_ref() {
3 + &1;
&3 + 1;
&3 + &1;
}
pub fn foo(x: &i32) -> i32 {
let a = 5;
a + x
}
pub fn bar(x: &i32, y: &i32) -> i32 {
x + y
}
pub fn baz(x: i32, y: &i32) -> i32 {
x + y
}
pub fn qux(x: i32, y: i32) -> i32 {
(&x + &y)
}
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