rust/tests/ui/statics/mutable_memory_validation.rs
2024-04-17 09:50:15 +00:00

22 lines
675 B
Rust

//issue: rust-lang/rust#122548
// Strip out raw byte dumps to make comparison platform-independent:
//@ normalize-stderr-test "(the raw bytes of the constant) \(size: [0-9]*, align: [0-9]*\)" -> "$1 (size: $$SIZE, align: $$ALIGN)"
//@ normalize-stderr-test "([0-9a-f][0-9a-f] |╾─*A(LLOC)?[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP"
#![feature(const_mut_refs)]
#![feature(const_refs_to_static)]
use std::cell::UnsafeCell;
struct Meh {
x: &'static UnsafeCell<i32>,
}
const MUH: Meh = Meh { x: unsafe { &mut *(&READONLY as *const _ as *mut _) } };
//~^ ERROR: it is undefined behavior to use this value
static READONLY: i32 = 0;
pub fn main() {}