From 950050f4632c82f3bbfa49f58ee642324bf08390 Mon Sep 17 00:00:00 2001
From: icodezjb <icodezjb@163.com>
Date: Fri, 3 Aug 2018 16:58:42 +0800
Subject: [PATCH] use write_all instead of write
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io::Write::write is not guaranteed to process the entire buffer. it return how many bytes were processed, which might be smaller than a given buffer’s length. use write_all instead.
---
 substrate/codec/src/codec.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/substrate/codec/src/codec.rs b/substrate/codec/src/codec.rs
index beee49ba3d8a4..4105e9bdc85bf 100644
--- a/substrate/codec/src/codec.rs
+++ b/substrate/codec/src/codec.rs
@@ -80,7 +80,7 @@ impl Output for Vec<u8> {
 #[cfg(feature = "std")]
 impl<W: ::std::io::Write> Output for W {
 	fn write(&mut self, bytes: &[u8]) {
-		(self as &mut ::std::io::Write).write(bytes).expect("Codec outputs are infallible");
+		(self as &mut ::std::io::Write).write_all(bytes).expect("Codec outputs are infallible");
 	}
 }