tests/ui/stdlib-unit-tests/volatile-fat-ptr.rs

   1 // run-pass
   2
   3 #![allow(stable_features)]
   4 #![feature(volatile)]
   5 use std::ptr::{read_volatile, write_volatile};
   6
   7 fn main() {
   8     let mut x: &'static str = "test";
   9     unsafe {
  10         let a = read_volatile(&x);
  11         assert_eq!(a, "test");
  12         write_volatile(&mut x, "foo");
  13         assert_eq!(x, "foo");
  14     }
  15 }