rust/tests/compile-fail/static_memory_modification2.rs

13 lines
349 B
Rust

// Validation detects that we are casting & to &mut and so it changes why we fail
// compile-flags: -Zmir-emit-validate=0
use std::mem::transmute;
#[allow(mutable_transmutes)]
fn main() {
unsafe {
let s = "this is a test";
transmute::<&[u8], &mut [u8]>(s.as_bytes())[4] = 42; //~ ERROR: tried to modify constant memory
}
}