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// Test that unsized locals uphold alignment requirements.
// Regression test for #71416.
//@ run-pass
#![feature(unsized_locals)]
#![allow(incomplete_features)]
use std::any::Any;
#[repr(align(256))]
#[allow(dead_code)]
struct A {
v: u8
}
impl A {
fn f(&self) -> *const A {
assert_eq!(self as *const A as usize % 256, 0);
self
}
}
fn mk() -> Box<dyn Any> {
Box::new(A { v: 4 })
}
fn main() {
let x = *mk();
let dwncst = x.downcast_ref::<A>().unwrap();
let addr = dwncst.f();
assert_eq!(addr as usize % 256, 0);
}
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