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ch20-02-mutlithreaded.md listing 20-21 deleting 'dyn' for call_box

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Yasushi Sakai
2018-08-04 12:02:56 -04:00
parent 88cdde350f
commit 31435f78ef
1 changed files with 2 additions and 2 deletions
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4
2018-edition/src/ch20-02-multithreaded.md
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@@ -1020,11 +1020,11 @@ shown in Listing 20-21.
```rust,ignore
trait FnBox {
fn call_box(self: Box<dyn Self>);
fn call_box(self: Box<Self>);
}
impl<F: FnOnce()> FnBox for F {
fn call_box(self: Box<dyn F>) {
fn call_box(self: Box<F>) {
(*self)()
}
}