"program_options" build fail. "boost::lambda" is working without any problem.

[Yoni Shperling <yoni386@…>]

Hello,

"program_options" build fail. "boost::lambda" is working without any problem.

This example below doesn't work:

#include "boost/program_options.hpp"
namespace po = boost::program_options;

#include <iostream>
#include <iterator>
using namespace std;

int main(int ac, char* av[])
{
    try {

        po::options_description desc("Allowed options");
        desc.add_options()
                ("help", "produce help message")
                ("compression", po::value<double>(), "set compression level");

        po::variables_map vm;
        po::store(po::parse_command_line(ac, av, desc), vm);
        po::notify(vm);

        if (vm.count("help")) {
            cout << desc << "\n";
            return 0;
        }

        if (vm.count("compression")) {
            cout << "Compression level was set to "
                 << vm["compression"].as<double>() << ".\n";
        } else {
            cout << "Compression level was not set.\n";
        }
    }
    catch(exception& e) {
        cerr << "error: " << e.what() << "\n";
        return 1;
    }
    catch(...) {
        cerr << "Exception of unknown type!\n";
    }

    return 0;
}

[ 50%] Linking CXX executable mem1
Undefined symbols for architecture x86_64:
  "boost::program_options::validators::check_first_occurrence(boost::any const&)", referenced from:
      void boost::program_options::validate<double, char>(boost::any&, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&, double*, long) in main.cpp.o
  "boost::program_options::to_internal(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)", referenced from:
      std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > boost::program_options::to_internal<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&) in main.cpp.o
  "boost::program_options::variables_map::variables_map()", referenced from:
      _main in main.cpp.o
  "boost::program_options::validation_error::get_template(boost::program_options::validation_error::kind_t)", referenced from:
      boost::program_options::validation_error::validation_error(boost::program_options::validation_error::kind_t, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int) in main.cpp.o
  "boost::program_options::options_description::add_options()", referenced from:
      _main in main.cpp.o
  "boost::program_options::options_description::m_default_line_length", referenced from:
      _main in main.cpp.o
  "boost::program_options::options_description::options_description(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, unsigned int, unsigned int)", referenced from:
      _main in main.cpp.o
  "boost::program_options::invalid_option_value::invalid_option_value(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)", referenced from:
      void boost::program_options::validate<double, char>(boost::any&, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&, double*, long) in main.cpp.o
  "boost::program_options::error_with_option_name::error_with_option_name(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int)", referenced from:
      boost::program_options::validation_error::validation_error(boost::program_options::validation_error::kind_t, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, int) in main.cpp.o
  "boost::program_options::options_description_easy_init::operator()(char const*, boost::program_options::value_semantic const*, char const*)", referenced from:
      _main in main.cpp.o
  "boost::program_options::options_description_easy_init::operator()(char const*, char const*)", referenced from:
      _main in main.cpp.o
  "boost::program_options::arg", referenced from:
      boost::program_options::typed_value<double, char>::name() const in main.cpp.o
  "boost::program_options::store(boost::program_options::basic_parsed_options<char> const&, boost::program_options::variables_map&, bool)", referenced from:
      _main in main.cpp.o
  "boost::program_options::detail::cmdline::set_additional_parser(boost::function1<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&>)", referenced from:
      boost::program_options::basic_command_line_parser<char>::extra_parser(boost::function1<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&>) in main.cpp.o
  "boost::program_options::detail::cmdline::set_options_description(boost::program_options::options_description const&)", referenced from:
      boost::program_options::basic_command_line_parser<char>::options(boost::program_options::options_description const&) in main.cpp.o
  "boost::program_options::detail::cmdline::get_canonical_option_prefix()", referenced from:
      boost::program_options::basic_command_line_parser<char>::run() in main.cpp.o
  "boost::program_options::detail::cmdline::run()", referenced from:
      boost::program_options::basic_command_line_parser<char>::run() in main.cpp.o
  "boost::program_options::detail::cmdline::style(int)", referenced from:
      boost::program_options::basic_command_line_parser<char>::style(int) in main.cpp.o
  "boost::program_options::detail::cmdline::cmdline(std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&)", referenced from:
      boost::program_options::basic_command_line_parser<char>::basic_command_line_parser(int, char const* const*) in main.cpp.o
  "boost::program_options::notify(boost::program_options::variables_map&)", referenced from:
      _main in main.cpp.o
  "boost::program_options::operator<<(std::__1::basic_ostream<char, std::__1::char_traits<char> >&, boost::program_options::options_description const&)", referenced from:
      _main in main.cpp.o
  "boost::program_options::abstract_variables_map::operator[](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) const", referenced from:
      boost::program_options::variables_map::operator[](std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) const in main.cpp.o
  "boost::program_options::error_with_option_name::substitute_placeholders(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) const", referenced from:
      vtable for boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::program_options::validation_error> > in main.cpp.o
      vtable for boost::exception_detail::error_info_injector<boost::program_options::validation_error> in main.cpp.o
      vtable for boost::program_options::validation_error in main.cpp.o
      vtable for boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::program_options::invalid_option_value> > in main.cpp.o
      vtable for boost::exception_detail::error_info_injector<boost::program_options::invalid_option_value> in main.cpp.o
      vtable for boost::program_options::invalid_option_value in main.cpp.o
  "boost::program_options::error_with_option_name::what() const", referenced from:
      vtable for boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::program_options::validation_error> > in main.cpp.o
      vtable for boost::exception_detail::error_info_injector<boost::program_options::validation_error> in main.cpp.o
      vtable for boost::program_options::validation_error in main.cpp.o
      vtable for boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::program_options::invalid_option_value> > in main.cpp.o
      vtable for boost::exception_detail::error_info_injector<boost::program_options::invalid_option_value> in main.cpp.o
      vtable for boost::program_options::invalid_option_value in main.cpp.o
  "boost::program_options::value_semantic_codecvt_helper<char>::parse(boost::any&, std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > const&, bool) const", referenced from:
      vtable for boost::program_options::typed_value<double, char> in main.cpp.o
  "typeinfo for boost::program_options::error_with_option_name", referenced from:
      typeinfo for boost::program_options::validation_error in main.cpp.o
  "typeinfo for boost::program_options::value_semantic_codecvt_helper<char>", referenced from:
      typeinfo for boost::program_options::typed_value<double, char> in main.cpp.o
  "vtable for boost::program_options::variables_map", referenced from:
      boost::program_options::variables_map::~variables_map() in main.cpp.o
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "vtable for boost::program_options::error_with_option_name", referenced from:
      boost::program_options::error_with_option_name::error_with_option_name(boost::program_options::error_with_option_name const&) in main.cpp.o
      boost::program_options::error_with_option_name::~error_with_option_name() in main.cpp.o
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "vtable for boost::program_options::value_semantic_codecvt_helper<char>", referenced from:
      boost::program_options::value_semantic_codecvt_helper<char>::value_semantic_codecvt_helper() in main.cpp.o
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [mem1] Error 1
make[2]: *** [CMakeFiles/mem1.dir/all] Error 2
make[1]: *** [CMakeFiles/mem1.dir/rule] Error 2
make: *** [mem1] Error 2

This example below is working:

#include <boost/lambda/lambda.hpp>
#include <iostream>
#include <iterator>
#include <algorithm>

int main()
{
    using namespace boost::lambda;
    typedef std::istream_iterator<int> in;

    std::for_each(
            in(std::cin), in(), std::cout << (_1 * 3) << " " );
}

Thank you,

Yoni