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14 lines
211 B
14 lines
211 B
3 years ago
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fn add_one(x: i32) -> i32 {
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x + 1
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}
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fn do_twice(f: fn(i32) -> i32, arg: i32) -> i32 {
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f(arg) + f(arg)
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}
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fn main() {
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let answer = do_twice(add_one, 5);
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println!("The answer is: {}", answer);
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}
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