rust/src/test/ui/consts/missing_span_in_backtrace.rs

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// compile-flags: -Z simulate-remapped-rust-src-base=/rustc/FAKE_PREFIX -Z translate-remapped-path-to-local-path=no -Z ui-testing=no
// normalize-stderr-test "alloc[0-9]+" -> "ALLOC_ID"
#![feature(const_swap)]
#![feature(const_mut_refs)]
use std::{
mem::{self, MaybeUninit},
ptr,
};
const X: () = {
let mut ptr1 = &1;
let mut ptr2 = &2;
// Swap them, bytewise.
unsafe {
ptr::swap_nonoverlapping(
&mut ptr1 as *mut _ as *mut MaybeUninit<u8>,
&mut ptr2 as *mut _ as *mut MaybeUninit<u8>,
mem::size_of::<&i32>(),
);
}
};
fn main() {
X
}