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