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// run-pass
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pub fn main() {
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// sometimes we have had trouble finding
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// the right type for f, as we unified
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// bot and u32 here
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let f = match "1234".parse::<usize>().ok() {
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None => return (),
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Some(num) => num as u32
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|
};
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assert_eq!(f, 1234);
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println!("{}", f)
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|
}
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