From ece8a8f520697be50cbe543bebe065c5198dae4d Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Wed, 29 Jan 2014 16:33:57 -0800
Subject: std: Remove io::io_error

* All I/O now returns IoResult<T> = Result<T, IoError>
* All formatting traits now return fmt::Result = IoResult<()>
* The if_ok!() macro was added to libstd
---
 src/libstd/macros.rs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/libstd/macros.rs')

diff --git a/src/libstd/macros.rs b/src/libstd/macros.rs
index 4032b63790b..b31ae92d742 100644
--- a/src/libstd/macros.rs
+++ b/src/libstd/macros.rs
@@ -197,3 +197,8 @@ macro_rules! local_data_key (
         pub static $name: ::std::local_data::Key<$ty> = &::std::local_data::Key;
     )
 )
+
+#[macro_export]
+macro_rules! if_ok (
+    ($e:expr) => (match $e { Ok(e) => e, Err(e) => return Err(e) })
+)
-- 
cgit 1.4.1-3-g733a5