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  {block name=title}GPSBabel development:Validate internal data structures (validate){/block}
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  <div xmlns="http://www.w3.org/1999/xhtml" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Validate internal data structures (validate)</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="filter_transform.html">Prev</a> </td><th width="60%" align="center">Chapter 4. Data Filters</th><td width="20%" align="right"> <a accesskey="n" href="Datums.html">Next</a></td></tr></table><hr /></div><div xmlns="http://www.w3.org/1999/xhtml" class="section"><div class="titlepage"><div><div><h2 class="title" ><a id="filter_validate"></a>Validate internal data structures (validate)</h2></div></div></div><p>
  This filter can be used to check internal data structures for validity.  The output of the filter is identical to the input, but if corruption is found a fatal error will be issued.
</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="fmt_validate_o_checkempty"></a>checkempty option</h3></div></div></div><p>
      Check for empty input.
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This option will cause a fatal error if there are no waypoints, no route waypoints and no track waypoints, i.e. the reader didn't produce anything.
</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="fmt_validate_o_debug"></a>debug option</h3></div></div></div><p>
      Output debug messages instead of possibly issuing a fatal error.
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This option will output verbose messages reporting the state of the internal data structures holding waypoints, routes and tracks.  Detected problems will normally produce a fatal error, but with this option in effect no error will be thrown allowing continued processing. 
</p></div></div><div xmlns="http://www.w3.org/1999/xhtml" class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="filter_transform.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="Data_Filters.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="Datums.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Transform waypoints into a route, tracks into routes, ... (transform) </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Appendix A. Supported Datums</td></tr></table></div>
  
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