diff options
Diffstat (limited to 'src/test/ui/stdlib-unit-tests/volatile-fat-ptr.rs')
-rw-r--r-- | src/test/ui/stdlib-unit-tests/volatile-fat-ptr.rs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/stdlib-unit-tests/volatile-fat-ptr.rs b/src/test/ui/stdlib-unit-tests/volatile-fat-ptr.rs new file mode 100644 index 000000000..f73e7e1c3 --- /dev/null +++ b/src/test/ui/stdlib-unit-tests/volatile-fat-ptr.rs @@ -0,0 +1,15 @@ +// run-pass + +#![allow(stable_features)] +#![feature(volatile)] +use std::ptr::{read_volatile, write_volatile}; + +fn main() { + 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"); + } +} |