1 files changed, 21 insertions, 0 deletions
diff --git a/tests/ui/enum/enum-to-float-cast.rs b/tests/ui/enum/enum-to-float-cast.rs
new file mode 100644
index 00000000000..05acdfd34e2
--- /dev/null
+++ b/tests/ui/enum/enum-to-float-cast.rs
@@ -0,0 +1,21 @@
+// Tests that enum-to-float casts are disallowed.
+
+enum E {
+    L0 = -1,
+    H0 = 1
+}
+
+enum F {
+    L1 = 1,
+    H1 = 0xFFFFFFFFFFFFFFFF
+}
+
+static C0: f32 = E::L0 as f32; //~ ERROR casting
+static C1: f32 = F::H1 as f32; //~ ERROR casting
+
+pub fn main() {
+    let b = C0;
+    let d = C1;
+    assert_eq!(b, -1.0f32);
+    assert_eq!(d, -1.0f32);
+}