1 files changed, 28 insertions, 0 deletions
diff --git a/tests/ui/lint/lint-ctypes-113436-1.rs b/tests/ui/lint/lint-ctypes-113436-1.rs
new file mode 100644
index 000000000..1ca59c686
--- /dev/null
+++ b/tests/ui/lint/lint-ctypes-113436-1.rs
@@ -0,0 +1,28 @@
+#![deny(improper_ctypes_definitions)]
+
+#[repr(C)]
+pub struct Foo {
+    a: u8,
+    b: (),
+}
+
+extern "C" fn foo(x: Foo) -> Foo {
+    todo!()
+}
+
+struct NotSafe(u32);
+
+#[repr(C)]
+pub struct Bar {
+    a: u8,
+    b: (),
+    c: NotSafe,
+}
+
+extern "C" fn bar(x: Bar) -> Bar {
+    //~^ ERROR `extern` fn uses type `NotSafe`, which is not FFI-safe
+    //~^^ ERROR `extern` fn uses type `NotSafe`, which is not FFI-safe
+    todo!()
+}
+
+fn main() {}