36 lines
1.0 KiB
Rust
36 lines
1.0 KiB
Rust
// Copyright 2012 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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// Note: it would be nice to give fewer warnings in these cases.
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fn mutate_by_mut_ref(x: &mut uint) {
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*x = 0;
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}
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fn mutate_by_ref(&&x: uint) {
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//~^ WARNING unused variable: `x`
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x = 0; //~ ERROR assigning to argument
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}
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fn mutate_by_copy(+x: uint) {
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//~^ WARNING unused variable: `x`
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x = 0; //~ ERROR assigning to argument
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//~^ WARNING value assigned to `x` is never read
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}
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fn mutate_by_move(+x: uint) {
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//~^ WARNING unused variable: `x`
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x = 0; //~ ERROR assigning to argument
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//~^ WARNING value assigned to `x` is never read
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}
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fn main() {
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}
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