mirror of
https://github.com/rust-lang/rust
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9 lines
159 B
Rust
9 lines
159 B
Rust
// run-pass
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fn action(mut cb: Box<dyn FnMut(usize) -> usize>) -> usize {
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cb(1)
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}
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pub fn main() {
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println!("num: {}", action(Box::new(move |u| u)));
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}
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