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//@ run-pass
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use std::ops::Add;
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fn show(z: i32) {
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println!("{}", z)
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}
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fn main() {
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let x = 23;
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let y = 42;
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show(Add::add( x, y));
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show(Add::add( x, &y));
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show(Add::add(&x, y));
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show(Add::add(&x, &y));
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show( x + y);
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show( x + &y);
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show(&x + y);
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show(&x + &y);
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}
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