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Update README.org: add troubleshooting section:
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The solution for that clang fails to find the standard include files.
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@brianjcj
brianjcj committed Jan 6, 2012
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149 changes: 124 additions & 25 deletions README.html
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<?xml version="1.0" encoding="iso-8859-1"?>
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
lang="en" xml:lang="en">
<head>
<title>README</title>
<meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"/>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
<meta name="generator" content="Org-mode"/>
<meta name="generated" content="2011-08-21 03:19:31 CST"/>
<meta name="generated" content="2012-01-06 22:28:33 CST"/>
<meta name="author" content="brianjcj"/>
<meta name="description" content=""/>
<meta name="keywords" content=""/>
Expand All @@ -21,6 +21,9 @@
.target { }
.timestamp { color: #bebebe; }
.timestamp-kwd { color: #5f9ea0; }
.right {margin-left:auto; margin-right:0px; text-align:right;}
.left {margin-left:0px; margin-right:auto; text-align:left;}
.center {margin-left:auto; margin-right:auto; text-align:center;}
p.verse { margin-left: 3% }
pre {
border: 1pt solid #AEBDCC;
Expand All @@ -31,10 +34,17 @@
overflow:auto;
}
table { border-collapse: collapse; }
td, th { vertical-align: top; }
td, th { vertical-align: top; }
th.right { text-align:center; }
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dt { font-weight: bold; }
div.figure { padding: 0.5em; }
div.figure p { text-align: center; }
textarea { overflow-x: auto; }
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}
/*]]>*///-->
</script>

</head>
<body>
<div id="content">

<div id="preamble">

</div>

<div id="content">
<h1 class="title">README</h1>


Expand All @@ -81,6 +96,7 @@ <h2>Table of Contents</h2>
<li><a href="#sec-2">2 Install </a></li>
<li><a href="#sec-3">3 Screenshot </a></li>
<li><a href="#sec-4">4 Note </a></li>
<li><a href="#sec-5">5 Troubleshooting </a></li>
</ul>
</div>
</div>
Expand All @@ -90,14 +106,14 @@ <h2 id="sec-1"><span class="section-number-2">1</span> Introduction </h2>
<div class="outline-text-2" id="text-1">


<p>
The AC sources for Clang.
Combine the power of AC, Clang and Yasnippet.
<p>
The AC sources for Clang.
Combine the power of AC, Clang and Yasnippet.
</p>
<p>
if you don't have Yasnippet, I recommend you install one.
if you don't want to install Yasnippet, you can try snippet.el instead.
if you don't install any of them, this script will still work for you any way.
if you don't have Yasnippet, I recommend you install one.
if you don't want to install Yasnippet, you can try snippet.el instead.
if you don't install any of them, this script will still work for you any way.
</p>
</div>

Expand All @@ -109,7 +125,7 @@ <h2 id="sec-2"><span class="section-number-2">2</span> Install </h2>


<p>
Here is my configurations for AC and auto-complete-clang for your reference.
Here is my configurations for AC and auto-complete-clang for your reference.
</p>


Expand Down Expand Up @@ -154,7 +170,7 @@ <h2 id="sec-3"><span class="section-number-2">3</span> Screenshot </h2>


<p>
Refer to the screenshot folder.
Refer to the screenshot folder.
</p>
</div>

Expand All @@ -166,25 +182,108 @@ <h2 id="sec-4"><span class="section-number-2">4</span> Note </h2>


<ul>
<li>
Now clang is able to parse codes from standard output. Saving the
file before parsing is no longer necessary. So the default value of
ac-clang-auto-save is now changed to nil. If you still use the old
version of clang and this may not work for you. In this case, you
can change the ac-clang-auto-save back to t.
<li>Now clang is able to parse codes from standard output. Saving the
file before parsing is no longer necessary. So the default value of
ac-clang-auto-save is now changed to nil. If you still use the old
version of clang and this may not work for you. In this case, you
can change the ac-clang-auto-save back to t.
</li>
</ul>



</div>

</div>

<div id="outline-container-5" class="outline-2">
<h2 id="sec-5"><span class="section-number-2">5</span> Troubleshooting </h2>
<div class="outline-text-2" id="text-5">


<ul>
<li>clang fails to find the standard inlcude files?

<p>
It is because clang's include file search path is not correct. Here is the solution:
</p><ul>
<li>find out the include file search pathes of your g++:




<pre class="example">echo "" | g++ -v -x c++ -E -
</pre>



<p>
you wil get something like this:
</p>



<pre class="example">#include "..." search starts here：
#include &lt;...&gt; search starts here：
/usr/include/c++/4.6
/usr/include/c++/4.6/x86_64-linux-gnu/.
/usr/include/c++/4.6/backward
/usr/lib/gcc/x86_64-linux-gnu/4.6.1/include
/usr/local/include
/usr/lib/gcc/x86_64-linux-gnu/4.6.1/include-fixed
/usr/include/x86_64-linux-gnu
/usr/include
End of search list.
</pre>


</li>
<li>setting the ac-clang-flags to include these default include pathes.
e.g.,




<pre class="example">(setq ac-clang-flags
(mapcar (lambda (item)(concat "-I" item))
(split-string
"
/usr/include/c++/4.6
/usr/include/c++/4.6/x86_64-linux-gnu/.
/usr/include/c++/4.6/backward
/usr/lib/gcc/x86_64-linux-gnu/4.6.1/include
/usr/local/include
/usr/lib/gcc/x86_64-linux-gnu/4.6.1/include-fixed
/usr/include/x86_64-linux-gnu
/usr/include
"
)))
</pre>




</li>
</ul>

<p> You can put it into your .emacs file.
</p>
<p>
Then code completion works just fine!
</p></li>
</ul>


</div>
</div>
<div id="postamble">
<p class="author"> Author: brianjcj
<a href="mailto:brianjcj@brianjcj">&lt;brianjcj@brianjcj&gt;</a>
</p>
<p class="date"> Date: 2011-08-21 03:19:31 CST</p>
<p class="creator">HTML generated by org-mode 6.33x in emacs 23</p>
</div>

<div id="postamble">
<p class="date">Date: 2012-01-06 22:28:33 CST</p>
<p class="author">Author: brianjcj</p>
<p class="creator">Org version 7.7 with Emacs version 24</p>
<a href="http://validator.w3.org/check?uri=referer">Validate XHTML 1.0</a>

</div>
</body>
</html>
104 changes: 77 additions & 27 deletions README.org
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Expand Up @@ -12,33 +12,33 @@

Here is my configurations for AC and auto-complete-clang for your reference.

#+BEGIN_EXAMPLE
(add-to-list 'load-path (concat myoptdir "AC"))
(require 'auto-complete-config)
(add-to-list 'ac-dictionary-directories (concat myoptdir "AC/ac-dict"))

(require 'auto-complete-clang)

(setq ac-auto-start nil)
(setq ac-quick-help-delay 0.5)
;; (ac-set-trigger-key "TAB")
;; (define-key ac-mode-map [(control tab)] 'auto-complete)
(define-key ac-mode-map [(control tab)] 'auto-complete)
(defun my-ac-config ()
(setq-default ac-sources '(ac-source-abbrev ac-source-dictionary ac-source-words-in-same-mode-buffers))
(add-hook 'emacs-lisp-mode-hook 'ac-emacs-lisp-mode-setup)
;; (add-hook 'c-mode-common-hook 'ac-cc-mode-setup)
(add-hook 'ruby-mode-hook 'ac-ruby-mode-setup)
(add-hook 'css-mode-hook 'ac-css-mode-setup)
(add-hook 'auto-complete-mode-hook 'ac-common-setup)
(global-auto-complete-mode t))
(defun my-ac-cc-mode-setup ()
(setq ac-sources (append '(ac-source-clang ac-source-yasnippet) ac-sources)))
(add-hook 'c-mode-common-hook 'my-ac-cc-mode-setup)
;; ac-source-gtags
(my-ac-config)

#+END_EXAMPLE
#+BEGIN_SRC emacs-lisp
(add-to-list 'load-path (concat myoptdir "AC"))
(require 'auto-complete-config)
(add-to-list 'ac-dictionary-directories (concat myoptdir "AC/ac-dict"))
(require 'auto-complete-clang)
(setq ac-auto-start nil)
(setq ac-quick-help-delay 0.5)
;; (ac-set-trigger-key "TAB")
;; (define-key ac-mode-map [(control tab)] 'auto-complete)
(define-key ac-mode-map [(control tab)] 'auto-complete)
(defun my-ac-config ()
(setq-default ac-sources '(ac-source-abbrev ac-source-dictionary ac-source-words-in-same-mode-buffers))
(add-hook 'emacs-lisp-mode-hook 'ac-emacs-lisp-mode-setup)
;; (add-hook 'c-mode-common-hook 'ac-cc-mode-setup)
(add-hook 'ruby-mode-hook 'ac-ruby-mode-setup)
(add-hook 'css-mode-hook 'ac-css-mode-setup)
(add-hook 'auto-complete-mode-hook 'ac-common-setup)
(global-auto-complete-mode t))
(defun my-ac-cc-mode-setup ()
(setq ac-sources (append '(ac-source-clang ac-source-yasnippet) ac-sources)))
(add-hook 'c-mode-common-hook 'my-ac-cc-mode-setup)
;; ac-source-gtags
(my-ac-config)
#+END_SRC

* Screenshot

Expand All @@ -53,3 +53,53 @@
can change the ac-clang-auto-save back to t.


* Troubleshooting

- clang fails to find the standard inlcude files?

It is because clang's include file search path is not correct. Here is the solution:
- find out the include file search pathes of your g++:

#+BEGIN_EXAMPLE
echo "" | g++ -v -x c++ -E -
#+END_EXAMPLE

you wil get something like this:

#+BEGIN_EXAMPLE
#include "..." search starts here：
#include <...> search starts here：
/usr/include/c++/4.6
/usr/include/c++/4.6/x86_64-linux-gnu/.
/usr/include/c++/4.6/backward
/usr/lib/gcc/x86_64-linux-gnu/4.6.1/include
/usr/local/include
/usr/lib/gcc/x86_64-linux-gnu/4.6.1/include-fixed
/usr/include/x86_64-linux-gnu
/usr/include
End of search list.
#+END_EXAMPLE
- setting the ac-clang-flags to include these default include pathes.
e.g.,

#+BEGIN_SRC emacs-lisp
(setq ac-clang-flags
(mapcar (lambda (item)(concat "-I" item))
(split-string
"
/usr/include/c++/4.6
/usr/include/c++/4.6/x86_64-linux-gnu/.
/usr/include/c++/4.6/backward
/usr/lib/gcc/x86_64-linux-gnu/4.6.1/include
/usr/local/include
/usr/lib/gcc/x86_64-linux-gnu/4.6.1/include-fixed
/usr/include/x86_64-linux-gnu
/usr/include
"
)))
#+END_SRC

You can put it into your .emacs file.

Then code completion works just fine!

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