rust/library/std/tests/volatile-fat-ptr.rs

16 lines
324 B
Rust

#![allow(stable_features)]
#![feature(volatile)]
use std::ptr::{read_volatile, write_volatile};
#[test]
fn volatile_fat_ptr() {
let mut x: &'static str = "test";
unsafe {
let a = read_volatile(&x);
assert_eq!(a, "test");
write_volatile(&mut x, "foo");
assert_eq!(x, "foo");
}
}