rust/src/test/ui/const-eval/match-test-ptr-null.rs
2018-07-15 14:26:31 +02:00

22 lines
1 KiB
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.
fn main() {
// Make sure match uses the usual pointer comparison code path -- i.e., it should complain
// that pointer comparison is disallowed, not that parts of a pointer are accessed as raw
// bytes.
let _: [u8; 0] = [4; { //~ ERROR could not evaluate repeat length
match &1 as *const i32 as usize { //~ ERROR raw pointers cannot be cast to integers
0 => 42, //~ ERROR constant contains unimplemented expression type
//~^ NOTE "pointer arithmetic or comparison" needs an rfc before being allowed
n => n,
}
}];
}