1 files changed, 29 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/fn-const-param-infer.rs b/src/test/ui/const-generics/fn-const-param-infer.rs
new file mode 100644
index 000000000..22f5f529c
--- /dev/null
+++ b/src/test/ui/const-generics/fn-const-param-infer.rs
@@ -0,0 +1,29 @@
+// revisions: full min
+
+#![cfg_attr(full, feature(adt_const_params))]
+#![cfg_attr(full, allow(incomplete_features))]
+
+struct Checked<const F: fn(usize) -> bool>;
+//~^ ERROR: using function pointers as const generic parameters
+
+fn not_one(val: usize) -> bool { val != 1 }
+fn not_two(val: usize) -> bool { val != 2 }
+
+fn generic_arg<T>(val: T) -> bool { true }
+
+fn generic<T>(val: usize) -> bool { val != 1 }
+
+fn main() {
+    let _: Option<Checked<not_one>> = None;
+    let _: Checked<not_one> = Checked::<not_one>;
+    let _: Checked<not_one> = Checked::<not_two>;
+
+    let _ = Checked::<generic_arg>;
+    let _ = Checked::<{generic_arg::<usize>}>;
+    let _ = Checked::<{generic_arg::<u32>}>;
+
+    let _ = Checked::<generic>;
+    let _ = Checked::<{generic::<u16>}>;
+    let _: Checked<{generic::<u16>}> = Checked::<{generic::<u16>}>;
+    let _: Checked<{generic::<u32>}> = Checked::<{generic::<u16>}>;
+}