[Boost-bugs] [Boost C++ Libraries] #1645: Invalid unicode support for default_value

Subject: [Boost-bugs] [Boost C++ Libraries] #1645: Invalid unicode support for default_value
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2008-02-19 10:50:12

#1645: Invalid unicode support for default_value
--------------------------+-------------------------------------------------
 Reporter:  anonymous     |       Owner:  vladimir_prus  
     Type:  Bugs          |      Status:  new            
Milestone:  Boost 1.36.0  |   Component:  program_options
  Version:  Boost 1.34.1  |    Severity:  Problem        
 Keywords:                |  
--------------------------+-------------------------------------------------
 The following example could not be compiled:
 =================================================================

 #include <string>
 #include <boost/program_options.hpp>

 namespace po = boost::program_options;

 int main()
 {
   std::wstring test;
   po::options_description desc("Allowed options");
   desc.add_options()
     ("test", po::wvalue<std::wstring>(&test)->default_value(L"value"),
 "description");
 }

 =================================================================

 It is due to wvalue::default_value tries to do
 lexical_cast<std::string>(std::wstring).
 Also I cannot change default_value to default_value("value") as soon as it
 accepts only something convertible to std::wstring.
 In other words it is impossible to specify default_value for wstring
 option.

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/1645>
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