1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/fn-const-param-call.rs b/src/test/ui/const-generics/fn-const-param-call.rs
new file mode 100644
index 000000000..dc516fb71
--- /dev/null
+++ b/src/test/ui/const-generics/fn-const-param-call.rs
@@ -0,0 +1,22 @@
+// Check that functions cannot be used as const parameters.
+// revisions: full min
+
+#![cfg_attr(full, feature(adt_const_params))]
+#![cfg_attr(full, allow(incomplete_features))]
+
+fn function() -> u32 {
+    17
+}
+
+struct Wrapper<const F: fn() -> u32>; //~ ERROR: using function pointers as const generic parameters
+
+impl<const F: fn() -> u32> Wrapper<F> {
+//~^ ERROR: using function pointers as const generic parameters
+    fn call() -> u32 {
+        F()
+    }
+}
+
+fn main() {
+    assert_eq!(Wrapper::<function>::call(), 17);
+}