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webpage: removed the index.html and help.html

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Daniel Marjamäki 2009-11-08 19:26:15 +01:00
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<html>
<body>
<h1>Help</h1>
<p>If you have a question, you can ask in our <a href="http://sourceforge.net/apps/phpbb/cppcheck/">forum</a>.</p>
<h2>First example</h2>
Here is a simple code:
<blockquote><code><pre>int main()
{
char a[10];
a[10] = 0;
return 0;
}</pre></code></blockquote>
If you save that into <i>file1.c</i> and execute:
<blockquote><code><pre>cppcheck file1.c</pre></code></blockquote>
The output from cppcheck will then be:
<blockquote><code><pre>Checking file1.c...
[file1.c:4]: (error) Array index out of bounds</pre></code></blockquote>
<h2>Checking all files in a folder</h2>
Normally a program has many sourcefiles. And you want to check them all. Cppcheck can check all sourcefiles in a directory:
<blockquote><code><pre>cppcheck path</pre></code></blockquote>
If "path" is a folder all sourcefiles in it will be checked:
<blockquote><code><pre>Checking path/file1.cpp...
1/2 files checked 50% done
Checking path/file2.cpp...
2/2 files checked 100% done</pre></code></blockquote>
<h2>Uncertain errors</h2>
<p>By default, only certain errors are reported.</p>
<p>With "--all" you will get more reports. But beware - some messages may be wrong.</p>
<p>Here is a simple code example:</p>
<blockquote><code><pre>void f()
{
Fred *fred = new Fred;
}</pre></code></blockquote>
<p>Execute this command:</p>
<blockquote><code><pre>cppcheck --all file1.cpp</pre></code></blockquote>
<p>The output from Cppcheck:</p>
<blockquote><code><pre>[file1.cpp:4]: (possible error) Memory leak: fred</pre></code></blockquote>
<p>The "possible" means that the reported message may be wrong (if Fred has automatic deallocation it is not a memory leak).</p>
<h2>Stylistic issues</h2>
<p>By default Cppcheck will only check for bugs. There are also a few checks for stylistic issues.</p>
<p>Here is a simple code example:</p>
<blockquote><code><pre>void f(int x)
{
int i;
if (x == 0)
{
i = 0;
}
}</pre></code></blockquote>
<p>To enable stylistic checks, use the --style flag:</p>
<blockquote><code><pre>cppcheck --style file3.c</pre></code></blockquote>
<blockquote><code><pre>[file3.c:3]: (style) The scope of the variable i can be limited</pre></code></blockquote>
<h2>More..</h2>
<p>You can generate XML output:</p>
<blockquote><code><pre>cppcheck --xml file3.c</pre></code></blockquote>
<p>You can suppress certain errors:</p>
<blockquote><code><pre>cppcheck --suppressions=mysuppressions.txt file3.c</pre></code></blockquote>
<p>If you get false positives about memory leaks because of automatic deallocation:</p>
<blockquote><code><pre>cppcheck --auto-dealloc autodealloc.lst file4.cpp</pre></code></blockquote>
</body>
</html>

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<html>
<head>
<title>Cppcheck</title>
</head>
<frameset rows="30,*">
<frame src="top.html" name="navbar" frameborder="0">
<frame src="main.html" name="page" frameborder="0">
</frameset>
</html>