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#![feature(const_generics)]
//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
struct Checked<const F: fn(usize) -> bool>;
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}>; //~ mismatched types
let _ = Checked::<{generic_arg}>;
let _ = Checked::<{generic_arg::<usize>}>;
let _ = Checked::<{generic_arg::<u32>}>; //~ mismatched types
let _ = Checked::<{generic}>; //~ type annotations needed
let _ = Checked::<{generic::<u16>}>;
let _: Checked<{generic::<u16>}> = Checked::<{generic::<u16>}>;
let _: Checked<{generic::<u32>}> = Checked::<{generic::<u16>}>; //~ mismatched types
}
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