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Imported Upstream version 1.9.0+dfsg1
[rustc.git] / src / test / run-pass / const-str-ptr.rs
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1// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
2// file at the top-level directory of this distribution and at
3// http://rust-lang.org/COPYRIGHT.
4//
5// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8// option. This file may not be copied, modified, or distributed
9// except according to those terms.
10
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11#![feature(rustc_attrs)]
12
13// ignore-pretty : (#23623) problems when ending with // comments
c34b1796 14
1a4d82fc 15use std::{str, string};
970d7e83 16
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17const A: [u8; 2] = ['h' as u8, 'i' as u8];
18const B: &'static [u8; 2] = &A;
19const C: *const u8 = B as *const u8;
223e47cc 20
54a0048b 21#[rustc_no_mir] // FIXME #27840 MIR can't do rvalue promotion yet.
223e47cc 22pub fn main() {
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23 unsafe {
24 let foo = &A as *const u8;
92a42be0 25 assert_eq!(foo, C);
1a4d82fc 26 assert_eq!(str::from_utf8_unchecked(&A), "hi");
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27 assert_eq!(*C, A[0]);
28 assert_eq!(*(&B[0] as *const u8), A[0]);
1a4d82fc 29 }
223e47cc 30}