io: use vec in example for AsyncReadExt::read_exact (#5863)

tokio-rs · Jul 16, 2023 · 33d6d4f · 33d6d4f
1 parent 6166e9b
commit 33d6d4f
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/tokio/src/io/util/async_read_ext.rs b/tokio/src/io/util/async_read_ext.rs
@@ -292,7 +292,8 @@ cfg_io_util! {
         /// #[tokio::main]
         /// async fn main() -> io::Result<()> {
         ///     let mut f = File::open("foo.txt").await?;
-        ///     let mut buffer = [0; 10];
+        ///     let len = 10;
+        ///     let mut buffer = vec![0; len];
         ///
         ///     // read exactly 10 bytes
         ///     f.read_exact(&mut buffer).await?;