31 lines
882 B
Rust
31 lines
882 B
Rust
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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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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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fn save_ref<'a>(refr: &'a i32, to: &mut [&'a i32]) {
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for val in &mut *to {
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*val = refr;
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}
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}
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fn main() {
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let ref init = 0i32;
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let ref mut refr = 1i32;
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let mut out = [init];
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save_ref(&*refr, &mut out);
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// This shouldn't be allowed as `refr` is borrowed
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*refr = 3; //~ ERROR cannot assign to `*refr` because it is borrowed
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// Prints 3?!
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println!("{:?}", out[0]);
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}
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