rust/src/test/ui/issues/issue-44216-sub-instant.rs

// run-fail
// error-pattern:overflow
// ignore-emscripten no processes

use std::time::{Instant, Duration};

fn main() {
    let now = Instant::now();
    let _ = now - Duration::from_secs(u64::max_value());
}
Move tests from `test/run-fail` to UI 2020-04-16 15:50:32 +09:00			`// run-fail`
Relaxed error pattern, and add test for SystemTime as well. 2017-09-10 01:48:43 +08:00			`// error-pattern:overflow`
Skip tests on emscripten 2020-05-08 00:39:02 +09:00			`// ignore-emscripten no processes`
Properly detect overflow in Instance +/- Duration. Avoid unchecked cast from `u64` to `i64`. Use `try_into()` for checked cast. (On Unix, cast to `time_t` instead of `i64`.) 2017-09-01 01:16:24 +08:00
			`use std::time::{Instant, Duration};`

			`fn main() {`
			`let now = Instant::now();`
			`let _ = now - Duration::from_secs(u64::max_value());`
			`}`