mirror of https://github.com/rust-lang/rust
25 lines
408 B
Rust
25 lines
408 B
Rust
//@ run-pass
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#![allow(dead_code)]
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//@ compile-flags: -Zmir-opt-level=1
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use std::mem;
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#[derive(Copy, Clone)]
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enum Never {}
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union Foo {
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a: u64,
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b: Never
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}
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fn foo(xs: [(Never, u32); 1]) -> u32 { xs[0].1 }
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fn bar([(_, x)]: [(Never, u32); 1]) -> u32 { x }
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fn main() {
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println!("{}", mem::size_of::<Foo>());
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let f = [Foo { a: 42 }, Foo { a: 10 }];
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println!("{:?}", unsafe { f[0].a });
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}
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