ceph/src/boost/libs/range/test/adaptor_test/map_keys_example.cpp

   1 // Boost.Range library
   2 //
   3 //  Copyright Neil Groves 2009. Use, modification and
   4 //  distribution is subject to the Boost Software License, Version
   5 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
   6 //  http://www.boost.org/LICENSE_1_0.txt)
   7 //
   8 //
   9 // For more information, see http://www.boost.org/libs/range/
  10 //
  11 //[map_keys_example
  12 #include <boost/range/adaptor/map.hpp>
  13 #include <boost/range/algorithm/copy.hpp>
  14 #include <boost/assign.hpp>
  15 #include <iterator>
  16 #include <iostream>
  17 #include <map>
  18 #include <vector>
  19
  20 //<-
  21 #include <boost/test/test_tools.hpp>
  22 #include <boost/test/unit_test.hpp>
  23
  24 #include <boost/range/algorithm_ext/push_back.hpp>
  25
  26 namespace
  27 {
  28 void map_keys_example_test()
  29 //->
  30 //=int main(int argc, const char* argv[])
  31 {
  32     using namespace boost::assign;
  33     using namespace boost::adaptors;
  34
  35     std::map<int,int> input;
  36     for (int i = 0; i < 10; ++i)
  37         input.insert(std::make_pair(i, i * 10));
  38
  39     boost::copy(
  40         input | map_keys,
  41         std::ostream_iterator<int>(std::cout, ","));
  42
  43 //=    return 0;
  44 //=}
  45 //]
  46     std::vector<int> reference;
  47     reference += 0,1,2,3,4,5,6,7,8,9;
  48
  49     std::vector<int> test;
  50     boost::push_back(test, input | map_keys);
  51
  52     BOOST_CHECK_EQUAL_COLLECTIONS( reference.begin(), reference.end(),
  53         test.begin(), test.end() );
  54 }
  55 }
  56
  57 boost::unit_test::test_suite*
  58 init_unit_test_suite(int argc, char* argv[])
  59 {
  60     boost::unit_test::test_suite* test
  61         = BOOST_TEST_SUITE( "RangeTestSuite.adaptor.map_keys_example" );
  62
  63     test->add( BOOST_TEST_CASE( &map_keys_example_test ) );
  64
  65     return test;
  66 }