Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 32 insertions, 0 deletions

diff --git a/tests/ui/packed/packed-struct-generic-layout.rs b/tests/ui/packed/packed-struct-generic-layout.rs
new file mode 100644
index 000000000..e064eede4
--- /dev/null
+++ b/tests/ui/packed/packed-struct-generic-layout.rs
@@ -0,0 +1,32 @@
+// run-pass
+#![allow(dead_code)]
+#![allow(overflowing_literals)]
+
+
+use std::mem;
+
+#[repr(packed)]
+struct S<T, S> {
+    a: T,
+    b: u8,
+    c: S
+}
+
+pub fn main() {
+    unsafe {
+        let s = S { a: 0xff_ff_ff_ffu32, b: 1, c: 0xaa_aa_aa_aa as i32 };
+        let transd : [u8; 9] = mem::transmute(s);
+        // Don't worry about endianness, the numbers are palindromic.
+        assert_eq!(transd,
+                   [0xff, 0xff, 0xff, 0xff,
+                    1,
+                    0xaa, 0xaa, 0xaa, 0xaa]);
+
+
+        let s = S { a: 1u8, b: 2u8, c: 0b10000001_10000001 as i16};
+        let transd : [u8; 4] = mem::transmute(s);
+        // Again, no endianness problems.
+        assert_eq!(transd,
+                   [1, 2, 0b10000001, 0b10000001]);
+    }
+}