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it unlocks many cool features!
- fn main() {
- foo::<_>(|i| println!("{}", i));
- foo2::<_>(|i| println!("{}", i));
- }
- fn foo<F: FnOnce(i32)>(f: F) {
- f(0);
- }
- fn foo2(f: impl FnOnce(i32)) {
- f(0);
- }
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