I am using program_options and want to write to the screen the options and their values. &nbsp;This allows me to verify everything is working properly before I execute a long running command. &nbsp;I thought I could just iterate over the map and print out each option, but that requires casting the option to a specific variable which must be known a priori. &nbsp;This is what I have right now<div>
<br class="webkit-block-placeholder"></div><div><div>&nbsp;&nbsp; &nbsp;cout &lt;&lt; &quot;options:\n&quot;;</div><div>&nbsp;&nbsp; &nbsp;po::variables_map::iterator optIter = options.begin();</div><div>&nbsp;&nbsp; &nbsp;for( ; optIter != options.end(); ++optIter ){</div>
<div>&nbsp;&nbsp; &nbsp; &nbsp; &nbsp;cout &lt;&lt; &quot;\t&quot; &lt;&lt; optIter-&gt;first &lt;&lt; &quot; = &quot; &lt;&lt; optIter-&gt;<a href="http://second.as">second.as</a>&lt;string&gt;() &lt;&lt; std::endl;</div><div>&nbsp;&nbsp; &nbsp;}</div><div><br class="webkit-block-placeholder">
</div><div>When my option isn&#39;t a string (e.g. bool or int) then I get the error:</div><div><br class="webkit-block-placeholder"></div><div><div>terminate called after throwing an instance of &#39;boost::bad_any_cast&#39;</div>
<div>&nbsp;&nbsp;what(): &nbsp;boost::bad_any_cast: failed conversion using boost::any_cast</div><div><br class="webkit-block-placeholder"></div><div><br class="webkit-block-placeholder"></div><div>Can someone show me how to do this?</div>
<div>Thanks,</div><div>Jeremy</div></div></div>