ceph/src/boost/libs/program_options/test/optional_test.cpp

   1 // Distributed under the Boost Software License, Version 1.0.
   2 // (See accompanying file LICENSE_1_0.txt
   3 // or copy at http://www.boost.org/LICENSE_1_0.txt)
   4
   5 #include <boost/program_options.hpp>
   6 namespace po = boost::program_options;
   7
   8 #include <boost/optional.hpp>
   9
  10 #include <string>
  11
  12 #include "minitest.hpp"
  13
  14 std::vector<std::string> sv(const char* array[], unsigned size)
  15 {
  16     std::vector<std::string> r;
  17     for (unsigned i = 0; i < size; ++i)
  18         r.push_back(array[i]);
  19     return r;
  20 }
  21
  22 void test_optional()
  23 {
  24     boost::optional<int> foo, bar, baz;
  25
  26     po::options_description desc;
  27     desc.add_options()
  28         ("foo,f", po::value(&foo), "")
  29         ("bar,b", po::value(&bar), "")
  30         ("baz,z", po::value(&baz), "")
  31         ;
  32
  33     const char* cmdline1_[] = { "--foo=12", "--bar", "1"};
  34     std::vector<std::string> cmdline1 = sv(cmdline1_,
  35                                            sizeof(cmdline1_)/sizeof(const char*));
  36     po::variables_map vm;
  37     po::store(po::command_line_parser(cmdline1).options(desc).run(), vm);
  38     po::notify(vm);
  39
  40     BOOST_REQUIRE(!!foo);
  41     BOOST_CHECK(*foo == 12);
  42
  43     BOOST_REQUIRE(!!bar);
  44     BOOST_CHECK(*bar == 1);
  45
  46     BOOST_CHECK(!baz);
  47 }
  48
  49 int main(int, char*[])
  50 {
  51     test_optional();
  52     return 0;
  53 }