X-Git-Url: https://git.ralfj.de/rust-101.git/blobdiff_plain/188b1ec1b8528e2326791feccc8077e15bd60182..1e8dd75a43302e59f8225f14ed85291f82a58b3c:/workspace/src/part11.rs

diff --git a/workspace/src/part11.rs b/workspace/src/part11.rs
index ac19371..746aed9 100644
--- a/workspace/src/part11.rs
+++ b/workspace/src/part11.rs
@@ -23,7 +23,7 @@ impl Callbacks {
 
     // Registration simply stores the callback.
     pub fn register(&mut self, callback: Box<FnMut(i32)>) {
-        unimplemented!()
+        self.callbacks.push(callback);
     }
 
     // We can also write a generic version of `register`, such that it will be instantiated with some concrete closure type `F`