rust-clippy/tests/ui/overflow_check_conditional.rs

36 lines
1.3 KiB
Rust

#![warn(clippy::overflow_check_conditional)]
#![allow(clippy::needless_if)]
fn test(a: u32, b: u32, c: u32) {
if a + b < a {}
//~^ ERROR: you are trying to use classic C overflow conditions that will fail in Rust
//~| NOTE: `-D clippy::overflow-check-conditional` implied by `-D warnings`
if a > a + b {}
//~^ ERROR: you are trying to use classic C overflow conditions that will fail in Rust
if a + b < b {}
//~^ ERROR: you are trying to use classic C overflow conditions that will fail in Rust
if b > a + b {}
//~^ ERROR: you are trying to use classic C overflow conditions that will fail in Rust
if a - b > b {}
//~^ ERROR: you are trying to use classic C underflow conditions that will fail in Rus
if b < a - b {}
//~^ ERROR: you are trying to use classic C underflow conditions that will fail in Rus
if a - b > a {}
//~^ ERROR: you are trying to use classic C underflow conditions that will fail in Rus
if a < a - b {}
//~^ ERROR: you are trying to use classic C underflow conditions that will fail in Rus
if a + b < c {}
if c > a + b {}
if a - b < c {}
if c > a - b {}
let i = 1.1;
let j = 2.2;
if i + j < i {}
if i - j < i {}
if i > i + j {}
if i - j < i {}
}
fn main() {
test(1, 2, 3)
}