2015-01-08 22:02:42 +11:00
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fn foo(a: Option<usize>, b: Option<usize>) {
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2020-12-17 00:42:49 +00:00
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match (a, b) {
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2020-12-17 01:18:01 +00:00
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//~^ ERROR: non-exhaustive patterns: `(None, None)` and `(Some(_), Some(_))` not covered
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2020-12-17 00:42:49 +00:00
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(Some(a), Some(b)) if a == b => {}
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(Some(_), None) | (None, Some(_)) => {}
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}
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2012-06-21 19:58:52 -07:00
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}
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fn main() {
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2020-12-17 00:42:49 +00:00
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foo(None, None);
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2013-02-14 11:47:00 -08:00
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}
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