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    <p>A complete parser-building tool like ANTLR or YACC is necessary if you want to parse C++ from scratch, but it's overkill for your purposes.</p> <p><i>It reads over my source files, makes a list of classes, their members, their functions, etc. which is then used to generate new code.</i></p> <p>Two main options:</p> <ul> <li><a href="http://www.gccxml.org/HTML/Index.html" rel="nofollow noreferrer">GCC-XML</a> can generate a list of classes, members, and functions. The distribution version on their web site is quite old; try the CVS version instead. I don't know about the availability of a Windows port.</li> <li><a href="http://www.stack.nl/~dimitri/doxygen/" rel="nofollow noreferrer">Doxygen</a> is designed for producing documentation, but it can also produce an XML output, which you should be able to use to do what you want.</li> </ul> <p><i>Currently I just use it to make it easy to read and write my data structures to a plain text file...</i></p> <p>This is known as serialization. Try <a href="http://www.boost.org/doc/libs/release/libs/serialization/" rel="nofollow noreferrer">Boost.Serialization</a> or maybe <a href="http://www.s11n.net/s11n/" rel="nofollow noreferrer">libs11n</a> or <a href="http://code.google.com/p/protobuf/" rel="nofollow noreferrer">Google Protocol Buffers</a>. <a href="https://stackoverflow.com/questions/tagged/serialization%20c%2b%2b">Stack Overflow</a> has further discussion.</p> <p><i>...but I could do other things as well.</i></p> <p>Other cool applications of this kind of automatic code generation include reflection (inspecting your objects' members at runtime, using <a href="http://en.wikipedia.org/wiki/Duck_typing" rel="nofollow noreferrer">duck typing</a> with C++, etc.) and generating wrappers for calling C++ from scripting languages. For a C++ reflection library, see <a href="http://root.cern.ch/drupal/content/reflex" rel="nofollow noreferrer">Reflex</a>. For an example of generating wrappers for scripting languages, see <a href="http://www.boost.org/doc/libs/release/libs/python/doc/" rel="nofollow noreferrer">Boost.Python</a> or <a href="http://www.swig.org/" rel="nofollow noreferrer">SWIG</a>.</p>
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    1. POAre there any free tools to help with automatic code generation?
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    1. USJosh Kelley
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    1. COThank you. I have been banging my head for 10 minutes trying to remember what GCC-XML was called!
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