[rustc.git] / src / test / ui / consts / const-ptr-unique-rpass.rs

// run-pass

#![feature(ptr_internals, test)]

extern crate test;
use test::black_box as b; // prevent promotion of the argument and const-propagation of the result

use std::ptr::Unique;


const PTR: *mut u32 = Unique::dangling().as_ptr();

pub fn main() {
    // Be super-extra paranoid and cast the fn items to fn pointers before blackboxing them.
    assert_eq!(PTR, b::<fn() -> _>(Unique::<u32>::dangling)().as_ptr());
}
Commit	Line	Data
532ac7d7 XL	1	// run-pass
532ac7d7 XL	2
dc9dc135 XL	3	#![feature(ptr_internals, test)]
	4
	5	extern crate test;
	6	use test::black_box as b; // prevent promotion of the argument and const-propagation of the result
532ac7d7 XL	7
	8	use std::ptr::Unique;
	9
532ac7d7	10
72b1a166	11	const PTR: *mut u32 = Unique::dangling().as_ptr();
532ac7d7 XL	12
532ac7d7 XL	13	pub fn main() {
dc9dc135	14	// Be super-extra paranoid and cast the fn items to fn pointers before blackboxing them.
72b1a166	15	assert_eq!(PTR, b::<fn() -> _>(Unique::<u32>::dangling)().as_ptr());
532ac7d7	16	}