rust/tests/ui/arithmetic_side_effects.rs

74 lines
1.6 KiB
Rust

#![allow(
clippy::assign_op_pattern,
unconditional_panic,
clippy::unnecessary_owned_empty_strings
)]
#![feature(inline_const, saturating_int_impl)]
#![warn(clippy::arithmetic_side_effects)]
use core::num::{Saturating, Wrapping};
pub fn hard_coded_allowed() {
let _ = 1f32 + 1f32;
let _ = 1f64 + 1f64;
let _ = Saturating(0u32) + Saturating(0u32);
let _ = String::new() + "";
let _ = Wrapping(0u32) + Wrapping(0u32);
let saturating: Saturating<u32> = Saturating(0u32);
let string: String = String::new();
let wrapping: Wrapping<u32> = Wrapping(0u32);
let inferred_saturating = saturating + saturating;
let inferred_string = string + "";
let inferred_wrapping = wrapping + wrapping;
let _ = inferred_saturating + inferred_saturating;
let _ = inferred_string + "";
let _ = inferred_wrapping + inferred_wrapping;
}
#[rustfmt::skip]
pub fn non_overflowing_ops() {
const _: i32 = { let mut n = 1; n += 1; n };
let _ = const { let mut n = 1; n += 1; n };
const _: i32 = { let mut n = 1; n = n + 1; n };
let _ = const { let mut n = 1; n = n + 1; n };
const _: i32 = { let mut n = 1; n = 1 + n; n };
let _ = const { let mut n = 1; n = 1 + n; n };
const _: i32 = 1 + 1;
let _ = 1 + 1;
let _ = const { 1 + 1 };
let mut _a = 1;
_a += 0;
_a -= 0;
_a /= 99;
_a %= 99;
_a *= 0;
_a *= 1;
}
#[rustfmt::skip]
pub fn overflowing_ops() {
let mut _a = 1; _a += 1;
let mut _b = 1; _b = _b + 1;
let mut _c = 1; _c = 1 + _c;
let mut _a = 1;
_a += 1;
_a -= 1;
_a /= 0;
_a %= 0;
_a *= 2;
_a *= 3;
}
fn main() {}