| // run-pass |
| |
| #![allow(dead_code)] |
| // This test checks that the `_` type placeholder works |
| // correctly for enabling type inference. |
| |
| |
| struct TestStruct { |
| x: *const isize |
| } |
| |
| unsafe impl Sync for TestStruct {} |
| |
| static CONSTEXPR: TestStruct = TestStruct{ x: &413 }; |
| |
| |
| pub fn main() { |
| let x: Vec<_> = (0..5).collect(); |
| let expected: &[usize] = &[0,1,2,3,4]; |
| assert_eq!(x, expected); |
| |
| let x = (0..5).collect::<Vec<_>>(); |
| assert_eq!(x, expected); |
| |
| let y: _ = "hello"; |
| assert_eq!(y.len(), 5); |
| |
| let ptr: &usize = &5; |
| let ptr2 = ptr as *const _; |
| |
| assert_eq!(ptr as *const usize as usize, ptr2 as usize); |
| } |