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https://github.com/rust-lang/rust
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16 lines
427 B
Rust
16 lines
427 B
Rust
//@ run-pass
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#![feature(ptr_internals, test)]
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extern crate test;
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use test::black_box as b; // prevent promotion of the argument and const-propagation of the result
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use std::ptr::Unique;
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const PTR: *mut u32 = Unique::dangling().as_ptr();
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pub fn main() {
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// Be super-extra paranoid and cast the fn items to fn pointers before blackboxing them.
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assert_eq!(PTR, b::<fn() -> _>(Unique::<u32>::dangling)().as_ptr());
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}
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