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-rw-r--r--src/test/ui/packed/issue-46152.rs24
1 files changed, 24 insertions, 0 deletions
diff --git a/src/test/ui/packed/issue-46152.rs b/src/test/ui/packed/issue-46152.rs
new file mode 100644
index 000000000..fb1c9fb78
--- /dev/null
+++ b/src/test/ui/packed/issue-46152.rs
@@ -0,0 +1,24 @@
+// run-pass
+#![allow(dead_code)]
+#![allow(unused_variables)]
+#![feature(unsize, coerce_unsized)]
+
+#[repr(packed)]
+struct UnalignedPtr<'a, T: ?Sized>
+ where T: 'a,
+{
+ data: &'a T,
+}
+
+fn main() {
+
+ impl<'a, T, U> std::ops::CoerceUnsized<UnalignedPtr<'a, U>> for UnalignedPtr<'a, T>
+ where
+ T: std::marker::Unsize<U> + ?Sized,
+ U: ?Sized,
+ { }
+
+ let arr = [1, 2, 3];
+ let arr_unaligned: UnalignedPtr<[i32; 3]> = UnalignedPtr { data: &arr };
+ let arr_unaligned: UnalignedPtr<[i32]> = arr_unaligned;
+}