add a test for #70408

1 files changed, 13 insertions, 0 deletions

diff --git a/src/test/ui/const-generics/issue-70408.rs b/src/test/ui/const-generics/issue-70408.rs
new file mode 100644
index 00000000000..f7557cb492c
--- /dev/null
+++ b/src/test/ui/const-generics/issue-70408.rs
@@ -0,0 +1,13 @@
+// build-pass
+
+#![feature(adt_const_params)]
+#![allow(incomplete_features)]
+
+pub fn function_with_bytes<const BYTES: &'static [u8; 4]>() -> &'static [u8] {
+    BYTES
+}
+
+pub fn main() {
+    assert_eq!(function_with_bytes::<b"AAAA">(), &[0x41, 0x41, 0x41, 0x41]);
+    assert_eq!(function_with_bytes::<{ &[0x41, 0x41, 0x41, 0x41] }>(), b"AAAA");
+}