#![feature(plugin)] #![plugin(clippy)] #![deny(overflow_check_conditional)] fn main() { let a: u32 = 1; let b: u32 = 2; let c: u32 = 3; if a + b < a { //~ERROR You are trying to use classic C overflow conditions that will fail in Rust. } 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 Rust. } if b < a - b { //~ERROR You are trying to use classic C underflow conditions that will fail in Rust. } if a - b > a { //~ERROR You are trying to use classic C underflow conditions that will fail in Rust. } if a < a - b { //~ERROR You are trying to use classic C underflow conditions that will fail in Rust. } 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 { } }