rust/src/test/run-pass/const-cast-ptr-int.rs

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// Copyright 2013 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.
use std::ptr;
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struct TestStruct {
x: *const u8
}
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unsafe impl Sync for TestStruct {}
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static a: TestStruct = TestStruct{x: 0 as *const u8};
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pub fn main() {
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assert_eq!(a.x, ptr::null());
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}