30 lines
770 B
Rust
30 lines
770 B
Rust
// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![warn(clippy::cmp_null)]
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#![allow(unused_mut)]
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use std::ptr;
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fn main() {
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let x = 0;
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let p : *const usize = &x;
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if p == ptr::null() {
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println!("This is surprising!");
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}
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let mut y = 0;
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let mut m : *mut usize = &mut y;
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if m == ptr::null_mut() {
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println!("This is surprising, too!");
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}
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}
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