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// https://github.com/SimonSapin/rust-std-candidates/issues/12
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#[macro_use(matches)] extern crate matches;
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#[test]
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fn matches_works() {
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let foo = Some("-12");
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assert!(matches!(foo, Some(bar) if
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matches!(bar.as_bytes()[0], b'+' | b'-') &&
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matches!(bar.as_bytes()[1], b'0'...b'9')
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));
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}
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