rust/tests/compile-fail/stacked_borrows/pass_invalid_mut.rs
Ralf Jung ef52be031c adjust compile-fail error messages
This also passes miri-test-libstd!
2019-04-17 16:02:57 +02:00

11 lines
299 B
Rust

// Make sure that we cannot pass by argument a `&mut` that got already invalidated.
fn foo(_: &mut i32) {}
fn main() {
let x = &mut 42;
let xraw = x as *mut _;
let xref = unsafe { &mut *xraw };
let _val = unsafe { *xraw }; // invalidate xref
foo(xref); //~ ERROR borrow stack
}