1
Fork 0
rust/src/test/ui/consts/const-eval/ub-upvars.rs

22 lines
777 B
Rust
Raw Normal View History

// 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.
#![feature(const_transmute,const_let)]
use std::mem;
const BAD_UPVAR: &FnOnce() = &{ //~ ERROR this constant likely exhibits undefined behavior
let bad_ref: &'static u16 = unsafe { mem::transmute(0usize) };
let another_var = 13;
move || { let _ = bad_ref; let _ = another_var; }
};
fn main() {}