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-rw-r--r--src/test/ui/union/issue-41073.rs22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/union/issue-41073.rs b/src/test/ui/union/issue-41073.rs
new file mode 100644
index 000000000..4dfdc606b
--- /dev/null
+++ b/src/test/ui/union/issue-41073.rs
@@ -0,0 +1,22 @@
+union Test {
+ a: A, //~ ERROR unions cannot contain fields that may need dropping
+ b: B
+}
+
+#[derive(Debug)]
+struct A(i32);
+impl Drop for A {
+ fn drop(&mut self) { println!("A"); }
+}
+
+#[derive(Debug)]
+struct B(f32);
+impl Drop for B {
+ fn drop(&mut self) { println!("B"); }
+}
+
+fn main() {
+ let mut test = Test { a: A(3) };
+ println!("{:?}", unsafe { test.b });
+ unsafe { test.b = B(0.5); }
+}