www/index.html - platform/external/clang - Gitiles

 <!-- Material used from: HTML 4.01 specs: http://www.w3.org/TR/html401/ -->
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
 <html>
 <head>
 	<META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
 	<title>Clang c-lang parser for LLVM</title>
 	<link type="text/css" rel="stylesheet" href="menu.css" />
 	<link type="text/css" rel="stylesheet" href="content.css" />
 </head>
 <body>
 	<!--#include virtual="menu.html.incl"-->
 	<div id="content">
 		<h1>Clang: a C language front-end for LLVM</h1>
 		<h2>About</h2>
 		<p>The goal of the Clang project is to create a new <a href="http://llvm.org/svn/llvm-project/cfe/trunk/LICENSE.TXT">BSD Licensed</a> C, C++, & ObjC front-end for the <a href="http://www.llvm.org/">LLVM</a> compiler.
 		<br><br>
 		<p>In the context of this website, the term Clang actually refers to two things:
 		<p>1) A "code name" for the LLVM compiler front-end.
 		<p>2) A specific library in the LLVM front-end -- in particular the "driver" that makes all the other libraries work together.
 		<br><br>
 		<p>The developers of Clang include contributers from Apple and numerous other volunteers.
 		<h2>Why?</h2>
 		<p>The development of a new front-end was started out of a need -- a need for a compiler that allows better diagnostics, better integration with IDEs, a license that is compatible with commercial products, and a compiler that is easier to develop and maintain.  All of these were motivations for starting work on a new C/C++/ObjC front-end that could meet these needs.
 		<p>An excellent introduction to Clang can be found in the following video lectures:
 		<ul>
 			<li><a href="clang_video-05-25-2007.html">Clang Introduction</a>
 			<li><a href="clang_video-07-25-2007.html">Features and Performance of Clang</a>
 		</ul>
 		<h2>Features/Goals</h2>
 		Some of the goals for the project include the following:
 		<ul>
 			<li>Real-world, production quality compiler.</li>
 			<li>A single unified parser for C/ObjC/C++</li>
 			<li>Language conformance with C, ObjC, C++ (including variants, like C90, C99, etc)</li>
 			<li>GCC compatibility (supports GCC extensions, but allow them to be disabled)</li>
 			<li>Library based architecture with finely crafted C++ APIs</li>
 			<li>High performance</li>
 			<li>Design for integration with IDEs as well as code generation with <a href="http://llvm.org">LLVM</a>.</li>
 			<li><a href="features.html#expressivediags">Expressive diagnostics</a></li>
 			<li>BSD License</li>
 		</ul>
 		Of course this is only a rough outline of the goals and features of Clang.  To get a true sense of what the new LLVM front-end is all about, as well as why you might want to considering using it, see the <a href="features.html">Features</a> section.
 		<h2>Try Clang</h2>
 		If you are a compiler developer and want to try out Clang, then build instructions are available on the <a href="get_involved.html#build">Get Involved</a> page.  Note that clang is still early in development.  If you are looking for source analysis or source-to-source transformation tools, clang is probably a great solution for you.  If you want to use it as a drop in C compiler, it is not yet ready.
 		<h2>Get Involved</h2>
 		If you are interested in working on Clang, then check out the <a href="get_involved.html">Get Involved</a> section.
 	</div>
 </body>
 </html>
	<!-- Material used from: HTML 4.01 specs: http://www.w3.org/TR/html401/ -->
	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
	<html>
	<head>
	<META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
	<title>Clang c-lang parser for LLVM</title>
	<link type="text/css" rel="stylesheet" href="menu.css" />
	<link type="text/css" rel="stylesheet" href="content.css" />
	</head>
	<body>
	<!--#include virtual="menu.html.incl"-->
	<div id="content">
	<h1>Clang: a C language front-end for LLVM</h1>
	<h2>About</h2>
	<p>The goal of the Clang project is to create a new <a href="http://llvm.org/svn/llvm-project/cfe/trunk/LICENSE.TXT">BSD Licensed</a> C, C++, & ObjC front-end for the <a href="http://www.llvm.org/">LLVM</a> compiler.
	<br><br>
	<p>In the context of this website, the term Clang actually refers to two things:
	<p>1) A "code name" for the LLVM compiler front-end.
	<p>2) A specific library in the LLVM front-end -- in particular the "driver" that makes all the other libraries work together.
	<br><br>
	<p>The developers of Clang include contributers from Apple and numerous other volunteers.
	<h2>Why?</h2>
	<p>The development of a new front-end was started out of a need -- a need for a compiler that allows better diagnostics, better integration with IDEs, a license that is compatible with commercial products, and a compiler that is easier to develop and maintain. All of these were motivations for starting work on a new C/C++/ObjC front-end that could meet these needs.
	<p>An excellent introduction to Clang can be found in the following video lectures:
	<ul>
	<li><a href="clang_video-05-25-2007.html">Clang Introduction</a>
	<li><a href="clang_video-07-25-2007.html">Features and Performance of Clang</a>
	</ul>
	<h2>Features/Goals</h2>
	Some of the goals for the project include the following:
	<ul>
	<li>Real-world, production quality compiler.</li>
	<li>A single unified parser for C/ObjC/C++</li>
	<li>Language conformance with C, ObjC, C++ (including variants, like C90, C99, etc)</li>
	<li>GCC compatibility (supports GCC extensions, but allow them to be disabled)</li>
	<li>Library based architecture with finely crafted C++ APIs</li>
	<li>High performance</li>
	<li>Design for integration with IDEs as well as code generation with <a href="http://llvm.org">LLVM</a>.</li>
	<li><a href="features.html#expressivediags">Expressive diagnostics</a></li>
	<li>BSD License</li>
	</ul>
	Of course this is only a rough outline of the goals and features of Clang. To get a true sense of what the new LLVM front-end is all about, as well as why you might want to considering using it, see the <a href="features.html">Features</a> section.
	<h2>Try Clang</h2>
	If you are a compiler developer and want to try out Clang, then build instructions are available on the <a href="get_involved.html#build">Get Involved</a> page. Note that clang is still early in development. If you are looking for source analysis or source-to-source transformation tools, clang is probably a great solution for you. If you want to use it as a drop in C compiler, it is not yet ready.
	<h2>Get Involved</h2>
	If you are interested in working on Clang, then check out the <a href="get_involved.html">Get Involved</a> section.
	</div>
	</body>
	</html>