Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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");
+    }
+}