https://svn.boost.org/trac10/ticket/5464 <p> I have created a test program (test_progopts.cpp, please see attachment) to familiarize myself with the program options library. I have compiled and run the test on Windows. </p> <p> In my test program I have two visible options "help,?" and "bool-opt,a" and one hidden options "input-file". If I run the test program using the following commands, I get my expected result: </p> <blockquote> <p> test_progopts -? test_progopts --help test_progopts -a test_progopts --bool-opt test_progopts test1.cpp </p> </blockquote> <p> However, if I run the test program using these commandc, it fails: </p> <blockquote> <p> test_progopts -a test1.cpp test_progopts --bool-opt test1.cpp </p> </blockquote> <p> I get the error message: </p> <blockquote> <p> in option 'bool-opt': invalid bool value </p> </blockquote> <p> From this error message, it appears that the implicit value is not working. Is my observation valid? </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/5464 Trac 1.4.3 lcarreon@… Tue, 12 Apr 2011 23:38:25 GMT https://svn.boost.org/trac10/ticket/5464 https://svn.boost.org/trac10/ticket/5464 <ul> <li><strong>attachment</strong> → <span class="trac-field-new">test_progopts.cpp</span> </li> </ul> <p> Program options library test program </p> Ticket Leo Carreon <lcarreon@…> Tue, 17 May 2011 22:42:31 GMT https://svn.boost.org/trac10/ticket/5464#comment:2 https://svn.boost.org/trac10/ticket/5464#comment:2 <ul> <li><strong>type</strong> <span class="trac-field-old">Bugs</span> → <span class="trac-field-new">Support Requests</span> </li> </ul> <p> I think the library is behaving at it should. Implicit makes the option accept zero tokens. However, the option will still accept a token if one is provided. Your command line has: </p> <blockquote> <p> --bool-opt test1.cpp </p> </blockquote> <p> and test1.cpp is treated as value for --bool-opt. You can use bool_switch function to create optin that never accepts parameters. </p> <p> Does this answer your question? </p> Ticket Leo Carreon <lcarreon@…> Wed, 18 May 2011 07:14:42 GMT https://svn.boost.org/trac10/ticket/5464#comment:4 https://svn.boost.org/trac10/ticket/5464#comment:4 <ul> <li><strong>status</strong> <span class="trac-field-old">new</span> → <span class="trac-field-new">closed</span> </li> <li><strong>resolution</strong> → <span class="trac-field-new">fixed</span> </li> </ul> Ticket