25 lines
723 B
Rust
25 lines
723 B
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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fn foo(x: Option<~int>, b: bool) -> int {
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match x {
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None => { 1 }
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Some(copy x) if b => { *x }
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Some(_) => { 0 }
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}
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}
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pub fn main() {
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foo(Some(~22), true);
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foo(Some(~22), false);
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foo(None, true);
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foo(None, false);
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}
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