1 files changed, 18 insertions, 0 deletions
diff --git a/tests/ui-nightly/transmute-mut-src-immutable.rs b/tests/ui-nightly/transmute-mut-src-immutable.rs
new file mode 100644
index 0000000..08088d0
--- /dev/null
+++ b/tests/ui-nightly/transmute-mut-src-immutable.rs
@@ -0,0 +1,18 @@
+// Copyright 2023 The Fuchsia Authors
+//
+// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
+// <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
+// license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
+// This file may not be copied, modified, or distributed except according to
+// those terms.
+
+extern crate zerocopy;
+
+use zerocopy::transmute_mut;
+
+fn main() {}
+
+fn ref_src_immutable() {
+    // `transmute_mut!` requires that its source type be a mutable reference.
+    let _: &mut u8 = transmute_mut!(&0u8);
+}