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// needed because negating int::MIN will behave differently between
// optimized compilation and unoptimized compilation and thus would
// lead to different lints being emitted
// revisions: noopt opt opt_with_overflow_checks
//[noopt]compile-flags: -C opt-level=0
//[opt]compile-flags: -O
//[opt_with_overflow_checks]compile-flags: -C overflow-checks=on -O
// build-fail
#![feature(rustc_attrs)]
fn black_box<T>(_: T) {
unimplemented!()
}
fn main() {
let a = -i8::MIN;
//~^ ERROR arithmetic operation will overflow
let a_i128 = -i128::MIN;
//~^ ERROR arithmetic operation will overflow
let b = 200u8 + 200u8 + 200u8;
//~^ ERROR arithmetic operation will overflow
let b_i128 = i128::MIN - i128::MAX;
//~^ ERROR arithmetic operation will overflow
let c = 200u8 * 4;
//~^ ERROR arithmetic operation will overflow
let d = 42u8 - (42u8 + 1);
//~^ ERROR arithmetic operation will overflow
let _e = [5u8][1];
//~^ ERROR operation will panic
black_box(a);
black_box(a_i128);
black_box(b);
black_box(b_i128);
black_box(c);
black_box(d);
}
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