// Copyright 2012 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #![feature(rustc_attrs)] #![allow(exceeding_bitshifts)] #![deny(const_err)] fn black_box(_: T) { unimplemented!() } const BLA: u8 = 200u8 + 200u8; //~^ ERROR attempted to add with overflow #[rustc_no_mir] // FIXME #29769 MIR overflow checking is TBD. fn main() { let a = -std::i8::MIN; //~^ WARN attempted to negate with overflow let b = 200u8 + 200u8 + 200u8; //~^ WARN attempted to add with overflow //~^^ WARN attempted to add with overflow let c = 200u8 * 4; //~^ WARN attempted to multiply with overflow let d = 42u8 - (42u8 + 1); //~^ WARN attempted to subtract with overflow let _e = BLA; black_box(a); black_box(b); black_box(c); black_box(d); }