blob: ea7aa5285b09d52acc520b9c6c90ad4e3cae6e41 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
// 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);
}
|