rust/tests/ui/const-generics/deref-into-array-generic.rs

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2022-01-07 12:26:17 -06:00
//@ check-pass
struct Test<T, const N: usize>([T; N]);
impl<T: Copy + Default, const N: usize> Default for Test<T, N> {
fn default() -> Self {
Self([T::default(); N])
}
}
impl<T, const N: usize> std::ops::Deref for Test<T, N> {
type Target = [T; N];
fn deref(&self) -> &[T; N] {
&self.0
}
}
fn test() -> Test<u64, 16> {
let test = Test::default();
println!("{}", test.len());
test
}
fn main() {
test();
}