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-rw-r--r--src/test/ui/transmutability/unions/boolish.rs31
1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/ui/transmutability/unions/boolish.rs b/src/test/ui/transmutability/unions/boolish.rs
new file mode 100644
index 000000000..975118b99
--- /dev/null
+++ b/src/test/ui/transmutability/unions/boolish.rs
@@ -0,0 +1,31 @@
+// check-pass
+
+#![crate_type = "lib"]
+#![feature(transmutability)]
+#![feature(marker_trait_attr)]
+#![allow(dead_code)]
+#![allow(incomplete_features)]
+
+mod assert {
+ use std::mem::BikeshedIntrinsicFrom;
+ pub struct Context;
+
+ pub fn is_transmutable<Src, Dst>()
+ where
+ Dst: BikeshedIntrinsicFrom<Src, Context, false, false, false, true>
+ {}
+}
+
+fn should_match_bool() {
+ #[derive(Copy, Clone)] #[repr(u8)] pub enum False { V = 0 }
+ #[derive(Copy, Clone)] #[repr(u8)] pub enum True { V = 1 }
+
+ #[repr(C)]
+ pub union Bool {
+ pub f: False,
+ pub t: True,
+ }
+
+ assert::is_transmutable::<Bool, bool>();
+ assert::is_transmutable::<bool, Bool>();
+}