1 files changed, 21 insertions, 0 deletions
diff --git a/tests/cfail/used-free-interrupt.rs b/tests/cfail/used-free-interrupt.rs
new file mode 100644
index 0000000..78ae540
--- /dev/null
+++ b/tests/cfail/used-free-interrupt.rs
@@ -0,0 +1,21 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init() {}
+
+    #[interrupt]
+    fn UART0() {} //~ ERROR free interrupts (`extern { .. }`) can't be used as interrupt handlers
+
+    extern "C" {
+        fn UART0();
+    }
+};