From f85e193739c953358c865005855253af4f68a497 Mon Sep 17 00:00:00 2001
From: John McCall <rjmccall@apple.com>
Date: Wed, 15 Jun 2011 23:02:42 +0000
Subject: Automatic Reference Counting.

Language-design credit goes to a lot of people, but I particularly want
to single out Blaine Garst and Patrick Beard for their contributions.

Compiler implementation credit goes to Argyrios, Doug, Fariborz, and myself,
in no particular order.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@133103 91177308-0d34-0410-b5e6-96231b3b80d8
---
 docs/LanguageExtensions.html | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'docs/LanguageExtensions.html')

diff --git a/docs/LanguageExtensions.html b/docs/LanguageExtensions.html
index 8f43725d82..cce2e8c5b0 100644
--- a/docs/LanguageExtensions.html
+++ b/docs/LanguageExtensions.html
@@ -65,6 +65,7 @@ td {
 <li><a href="#objc_features">Objective-C Features</a>
   <ul>
     <li><a href="#objc_instancetype">Related result types</a></li>
+    <li><a href="#objc_arc">Automatic reference counting</a></li>
   </ul>
 </li>
 <li><a href="#overloading-in-c">Function Overloading in C</a></li>
@@ -669,6 +670,12 @@ property access via the given method. In all other respects, a method
 with a related result type is treated the same way as method without a
 related result type.</p>
 
+<!-- ======================================================================= -->
+<h2 id="objc_arc">Automatic reference counting </h2>
+<!-- ======================================================================= -->
+
+<p>Clang provides support for <a href="AutomaticReferenceCounting.html">automated reference counting</a> in Objective-C, which eliminates the need for manual retain/release/autorelease message sends. There are two feature macros associated with automatic reference counting: <code>__has_feature(objc_arc)</code> indicates the availability of automated reference counting in general, while <code>__has_feature(objc_arc_weak)</code> indicates that automated reference counting also includes support for <code>__weak</code> pointers to Objective-C objects.</p>
+
 <!-- ======================================================================= -->
 <h2 id="overloading-in-c">Function Overloading in C</h2>
 <!-- ======================================================================= -->
-- 
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