3 #![cfg_attr(full, feature(const_generics))]
4 #![cfg_attr(full, allow(incomplete_features))]
6 struct Checked<const F: fn(usize) -> bool>;
7 //~^ ERROR: using function pointers as const generic parameters
9 fn not_one(val: usize) -> bool { val != 1 }
10 fn not_two(val: usize) -> bool { val != 2 }
12 fn generic_arg<T>(val: T) -> bool { true }
14 fn generic<T>(val: usize) -> bool { val != 1 }
17 let _: Option<Checked<not_one>> = None;
18 let _: Checked<not_one> = Checked::<not_one>;
19 let _: Checked<not_one> = Checked::<not_two>;
21 let _ = Checked::<generic_arg>;
22 let _ = Checked::<{generic_arg::<usize>}>;
23 let _ = Checked::<{generic_arg::<u32>}>;
25 let _ = Checked::<generic>;
26 let _ = Checked::<{generic::<u16>}>;
27 let _: Checked<{generic::<u16>}> = Checked::<{generic::<u16>}>;
28 let _: Checked<{generic::<u32>}> = Checked::<{generic::<u16>}>;