rust/tests/ui/consts/static-mut-refs.rs

28 lines
711 B
Rust

//@ run-pass
#![allow(dead_code)]
// FIXME(static_mut_refs): Do not allow `static_mut_refs` lint
#![allow(static_mut_refs)]
// Checks that mutable static items can have mutable slices and other references
static mut TEST: &'static mut [isize] = &mut [1];
static mut EMPTY: &'static mut [isize] = &mut [];
static mut INT: &'static mut isize = &mut 1;
// And the same for raw pointers.
static mut TEST_RAW: *mut [isize] = &mut [1isize] as *mut _;
static mut EMPTY_RAW: *mut [isize] = &mut [] as *mut _;
static mut INT_RAW: *mut isize = &mut 1isize as *mut _;
pub fn main() {
unsafe {
TEST[0] += 1;
assert_eq!(TEST[0], 2);
*INT_RAW += 1;
assert_eq!(*INT_RAW, 2);
}
}