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<html>
<head>
<title>SWIG:Examples:Go</title>
</head>
<body bgcolor="#ffffff">
<H1>SWIG Go Examples</H1>
<p>
The following examples illustrate the use of SWIG with Go.
<ul>
<li><a href="simple/index.html">simple</a>. A minimal example showing how SWIG can
be used to wrap a C function, a global variable, and a constant.
<li><a href="constants/index.html">constants</a>. This shows how preprocessor macros and
certain C declarations are turned into constants.
<li><a href="variables/index.html">variables</a>. An example showing how to access C global variables from Go.
<li><a href="enum/index.html">enum</a>. Wrapping enumerations.
<li><a href="class/index.html">class</a>. Wrapping a simple C++ class.
<li><a href="reference/index.html">reference</a>. C++ references.
<li><a href="pointer/index.html">pointer</a>. Simple pointer handling.
<li><a href="funcptr/index.html">funcptr</a>. Pointers to functions.
<li><a href="template/index.html">template</a>. C++ templates.
<li><a href="callback/index.html">callback</a>. C++ callbacks using directors.
<li><a href="extend/index.html">extend</a>. Polymorphism using directors.
</ul>
<h2>Compilation Issues</h2>
<ul>
<li>To create a Go extension, SWIG is run with the following options:
<blockquote>
<pre>
% swig -go interface.i
</pre>
</blockquote>
<li>On Unix the compilation of examples is done using the
file <tt>Example/Makefile</tt>. This makefile performs a manual
module compilation which is platform specific. When using
the <tt>6g</tt> or <tt>8g</tt> compiler, the steps look like this
(GNU/Linux):
<blockquote>
<pre>
% swig -go interface.i
% gcc -fpic -c interface_wrap.c
% gcc -shared interface_wrap.o $(OBJS) -o interfacemodule.so
% 6g interface.go
% 6c interface_gc.c
% gopack grc interface.a interface.6 interface_gc.6
% 6l program.6
</pre>
</blockquote>
<li>When using the <tt>gccgo</tt> compiler, the steps look like this:
<blockquote>
<pre>
% swig -go interface.i
% gcc -c interface_wrap.c
% gccgo -c interface.go
% gccgo program.o interface.o interface_wrap.o
</pre>
</blockquote
</ul>
<h2>Compatibility</h2>
The examples have been extensively tested on the following platforms:
<ul>
<li>GNU/Linux
</ul>
All of the examples were last tested with the following configuration
(10 May 2010):
<ul>
<li>Ubuntu Hardy
<li>gcc-4.2.4
</ul>
Your mileage may vary. If you experience a problem, please let us know by
contacting us on the <a href="http://www.swig.org/mail.html">mailing lists</a>.
</body>
</html>
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