From 7c3efcc5bb260234fc163340c9fd7aad3d8d780e Mon Sep 17 00:00:00 2001
From: Chris Wong <lambda.fairy@gmail.com>
Date: Wed, 1 Apr 2015 19:48:49 +1300
Subject: [PATCH] Don't reborrow the target of a `write!()`

This means passing in e.g. a `Vec<u8>` or `String` will work as
intended, rather than deref-ing to `&mut [u8]` or `&mut str`.

[breaking-change]

Closes #23768
---
 src/libcore/macros.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libcore/macros.rs b/src/libcore/macros.rs
index d5a7c1d6b2647..e867ed3efd908 100644
--- a/src/libcore/macros.rs
+++ b/src/libcore/macros.rs
@@ -184,7 +184,7 @@ macro_rules! try {
 /// ```
 #[macro_export]
 macro_rules! write {
-    ($dst:expr, $($arg:tt)*) => ((&mut *$dst).write_fmt(format_args!($($arg)*)))
+    ($dst:expr, $($arg:tt)*) => ($dst.write_fmt(format_args!($($arg)*)))
 }
 
 /// Equivalent to the `write!` macro, except that a newline is appended after