From a4b7ed7a42c716ab9f05e351f003d589124fd55d Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:18:58 +0200
Subject: Adding upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../packed-struct-generic-transmute.rs             | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 tests/ui/packed-struct/packed-struct-generic-transmute.rs

(limited to 'tests/ui/packed-struct/packed-struct-generic-transmute.rs')

diff --git a/tests/ui/packed-struct/packed-struct-generic-transmute.rs b/tests/ui/packed-struct/packed-struct-generic-transmute.rs
new file mode 100644
index 000000000..c6264b6d2
--- /dev/null
+++ b/tests/ui/packed-struct/packed-struct-generic-transmute.rs
@@ -0,0 +1,27 @@
+// This assumes the packed and non-packed structs are different sizes.
+
+// the error points to the start of the file, not the line with the
+// transmute
+
+// error-pattern: cannot transmute between types of different sizes, or dependently-sized types
+
+use std::mem;
+
+#[repr(packed)]
+struct Foo<T,S> {
+    bar: T,
+    baz: S
+}
+
+struct Oof<T, S> {
+    rab: T,
+    zab: S
+}
+
+fn main() {
+    let foo = Foo { bar: [1u8, 2, 3, 4, 5], baz: 10i32 };
+    unsafe {
+        let oof: Oof<[u8; 5], i32> = mem::transmute(foo);
+        println!("{:?} {:?}", &oof.rab[..], oof.zab);
+    }
+}
-- 
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