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- #![allow(unused)]
- use std::any::Any;
- fn is_string(s: &(Any + Send)) {
- if s.is::<String>() {
- println!("It's a string!");
- } else {
- println!("Not a string...");
- }
- }
- fn main() {
- is_string(&0);
- is_string(&"cookie monster".to_string());
- }
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