Ticket #2821: test.cpp

#include <string>
#include <iostream>

#include <boost/exception.hpp>
#include <boost/lexical_cast.hpp>

typedef boost::error_info<struct os_error_info_tag, int> os_error_info_base;

class os_error_info : public os_error_info_base
{
public:
        os_error_info(int const& err_code)
                : os_error_info_base(err_code) {}

private:
        std::string value_as_string() const
                {return "Error code: " + boost::lexical_cast<std::string> (value());}
};

int main(int argc, char* argv[])
{
        try
        {
                throw boost::enable_error_info(std::exception("value_as_string test")) <<
                        os_error_info(10);
        }
        catch (boost::exception const& ex)
        {
                std::cerr << boost::diagnostic_information(ex) << std::endl;
        }

//      std::cin.get();
        return 0;
}