In Boost::Program_Options, how to set default value for wstring?

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My code below did not work:

wstring config_file;
// Declare a group of options that will be 
// allowed only on command line
po::options_description generic("Generic options");
generic.add_options()
    ("help,h", "produce help message")
    ("config,c", po::wvalue<wstring>(&config_file)->default_value(L"DXDrv.cfg"), "name of a file of a configuration.")
    ;

The compilation failed with error:

d:\repo\a4x_ext\minidxdriver\testapp\configparser\boost\lexical_cast.hpp(1096) : error C2039: 'setg' : is not a member of 'boost::detail::lexical_stream_limited_src<CharT,Base,Traits>'

1 Answers
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