Re: [Boost-bugs] [Boost C++ Libraries] #11893: boost program_options regression (--arg1 value) fails ( --arg1=value) ok

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #11893: boost program_options regression (--arg1 value) fails ( --arg1=value) ok
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-01-07 11:12:27

#11893: boost program_options regression (--arg1 value) fails ( --arg1=value) ok
-------------------------------+-----------------------------
  Reporter:  avibahra@…        |      Owner:  vladimir_prus
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  program_options
   Version:  Boost 1.61.0      |   Severity:  Regression
Resolution:                    |   Keywords:  unix_style
-------------------------------+-----------------------------

Comment (by avibahra@…):

 The correct program should be:
 {{{
    po::options_description desc("Allowed options");
    desc.add_options()
        ("help", "produce help message")
        ("arg1", po::value<string>()->implicit_value( string("") ),
 "optional arg1 description") ;
    {
       // ******* This test fails on boost 1.59, can't cope --arg1 10, only
 --arg1=10 *******
       char* argv[] = {
             const_cast<char*>("test_program_options_implicit_value"),
             const_cast<char*>("--arg1"),
             const_cast<char*>("10")
       };

       po::variables_map vm;
       po::store(po::parse_command_line(3, argv, desc), vm);  // populate
 variable map
       po::notify(vm);

       BOOST_CHECK_MESSAGE(vm.count("arg1"), "Expected arg1");
       BOOST_CHECK_MESSAGE(vm["arg1"].as<string>() == "10", "Expected arg1
 with value of 10 but found '" << vm["arg1"].as<string>() << "'");
    }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/11893#comment:1>
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