src/test/run-pass/iter-sum-overflow-overflow-checks.rs

// Copyright 2016 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 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// ignore-wasm32-bare compiled with panic=abort by default
// compile-flags: -C overflow-checks

use std::panic;

fn main() {
    let r = panic::catch_unwind(|| {
        [1, i32::max_value()].iter().sum::<i32>();
    });
    assert!(r.is_err());

    let r = panic::catch_unwind(|| {
        [2, i32::max_value()].iter().product::<i32>();
    });
    assert!(r.is_err());

    let r = panic::catch_unwind(|| {
        [1, i32::max_value()].iter().cloned().sum::<i32>();
    });
    assert!(r.is_err());

    let r = panic::catch_unwind(|| {
        [2, i32::max_value()].iter().cloned().product::<i32>();
    });
    assert!(r.is_err());
}