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#![feature(adt_const_params, unsized_const_params)]
#![allow(incomplete_features)]
// Regression test for #119299
use std::marker::UnsizedConstParamTy;
#[derive(Eq, PartialEq)]
struct ConstStrU(*const u8, usize);
impl UnsizedConstParamTy for &'static ConstStrU {}
//~^ ERROR: the trait `ConstParamTy_` cannot be implemented for this type
impl ConstStrU {
const fn from_bytes(bytes: &'static [u8]) -> Self {
Self(bytes.as_ptr(), bytes.len())
}
}
const fn chars_s<const S: &'static ConstStrU>() -> [char; 3] {
['a', 'b', 'c']
}
fn main() {
const A: &'static ConstStrU = &ConstStrU::from_bytes(b"abc");
chars_s::<A>();
}
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