boost-program-options

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>' Long-winded explanation: This

I am trying to compile the multiple_sources.cpp to compile on my computer. I am running Xubuntu Lucid Lynx fully updated. It will compile without issue with g++ -c multiple_sources.cpp but when I try to link and make an exectuable with g++ multiple_sources.o I get: multiple_sources.cpp:(.text+0x3d): undefined reference to `boost::program_options::options_description::m_default_line_length' multiple_sources.cpp:(.text+0x87): undefined reference to `boost::program_options::options_description::options_description(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&,

I'm trying to get boost::program_options to read a ini file with multiple sections: [slave] address=localhost port=1111 [slave] address=192.168.0.1 port=2222 Is there any solution? Thanks in advance! There are a few solutions to this problem. While it may initially appear that this should be an easy task, it is often fairly involved. This is because sections are roughly equivalent to namespaces; sections are not equivalent to objects. [slave] address=localhost port=1111 [slave] address=192.168.0.1 port=2222 The above configuration has a single slave namespace, that contains two address values

So I'm working off one of the examples for Boost program_options library, and I wanted to try setting a default value for one of the multiple-values/ vector-values, but it doesn't seem to work. As I think is suggested here to work . What I've modified is on about line 40: po::options_description config("Configuration"); config.add_options() ("optimization", po::value<int>(&opt)->default_value(10), "optimization level") ("include-path,I", o::value< vector<string> >()->default_value(vector<string>(),"SOMETHING")->composing(), "include path") ; When I compile this small change, I expect that when

I am trying to validate command line input to an Enum that I've defined, but get compiler errors. I have used Handle complex options with Boost's program_options as an example to work from. namespace po = boost::program_options; namespace Length { enum UnitType { METER, INCH }; } void validate(boost::any& v, const std::vector<std::string>& values, Length::UnitType*, int) { Length::UnitType unit; if (values.size() < 1) { throw boost::program_options::validation_error("A unit must be specified"); } // make sure no previous assignment was made //po::validators::check_first_occurence(v); // tried