rust/src/test/ui/consts/const-eval/assign-to-static-within-other-static.rs
2018-11-19 11:19:14 +01:00

36 lines
948 B
Rust

// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// New test for #53818: modifying static memory at compile-time is not allowed.
// The test should never compile successfully
#![feature(const_raw_ptr_deref)]
#![feature(const_let)]
use std::cell::UnsafeCell;
struct Foo(UnsafeCell<u32>);
unsafe impl Send for Foo {}
unsafe impl Sync for Foo {}
static FOO: Foo = Foo(UnsafeCell::new(42));
static BAR: () = unsafe {
*FOO.0.get() = 5;
};
static mut FOO2: u32 = 42;
static BOO2: () = unsafe {
FOO2 = 5;
};
fn main() {}