// run-pass #![allow(unused_must_use)] // ignore-emscripten no threads support #![feature(rustc_attrs)] use std::thread; trait Int { fn zero() -> Self; fn one() -> Self; } macro_rules! doit { ($($t:ident)*) => ($(impl Int for $t { fn zero() -> Self { 0 } fn one() -> Self { 1 } })*) } doit! { i8 i16 i32 i64 isize } macro_rules! check { ($($e:expr),*) => { $(assert!(thread::spawn({ move|| { $e; } }).join().is_err());)* } } fn main() { check![ isize::MIN / -isize::one(), i8::MIN / -i8::one(), i16::MIN / -i16::one(), i32::MIN / -i32::one(), i64::MIN / -i64::one(), 1isize / isize::zero(), 1i8 / i8::zero(), 1i16 / i16::zero(), 1i32 / i32::zero(), 1i64 / i64::zero(), isize::MIN % -isize::one(), i8::MIN % -i8::one(), i16::MIN % -i16::one(), i32::MIN % -i32::one(), i64::MIN % -i64::one(), 1isize % isize::zero(), 1i8 % i8::zero(), 1i16 % i16::zero(), 1i32 % i32::zero(), 1i64 % i64::zero() ]; }