ceph/src/boost/libs/compute/test/test_equal_range.cpp

   1 //---------------------------------------------------------------------------//
   2 // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
   3 //
   4 // Distributed under the Boost Software License, Version 1.0
   5 // See accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt
   7 //
   8 // See http://boostorg.github.com/compute for more information.
   9 //---------------------------------------------------------------------------//
  10
  11 #define BOOST_TEST_MODULE TestEqualRange
  12 #include <boost/test/unit_test.hpp>
  13
  14 #include <utility>
  15 #include <iterator>
  16
  17 #include <boost/compute/command_queue.hpp>
  18 #include <boost/compute/algorithm/equal_range.hpp>
  19 #include <boost/compute/container/vector.hpp>
  20
  21 #include "context_setup.hpp"
  22
  23 BOOST_AUTO_TEST_CASE(equal_range_int)
  24 {
  25     int data[] = { 1, 2, 2, 2, 3, 3, 4, 5 };
  26     boost::compute::vector<int> vector(data, data + 8, queue);
  27
  28     typedef boost::compute::vector<int>::iterator iterator;
  29
  30     std::pair<iterator, iterator> range0 =
  31         boost::compute::equal_range(vector.begin(), vector.end(), int(0), queue);
  32     BOOST_CHECK(range0.first == vector.begin());
  33     BOOST_CHECK(range0.second == vector.begin());
  34     BOOST_CHECK_EQUAL(std::distance(range0.first, range0.second), ptrdiff_t(0));
  35
  36     std::pair<iterator, iterator> range1 =
  37         boost::compute::equal_range(vector.begin(), vector.end(), int(1), queue);
  38     BOOST_CHECK(range1.first == vector.begin());
  39     BOOST_CHECK(range1.second == vector.begin() + 1);
  40     BOOST_CHECK_EQUAL(std::distance(range1.first, range1.second), ptrdiff_t(1));
  41
  42     std::pair<iterator, iterator> range2 =
  43         boost::compute::equal_range(vector.begin(), vector.end(), int(2), queue);
  44     BOOST_CHECK(range2.first == vector.begin() + 1);
  45     BOOST_CHECK(range2.second == vector.begin() + 4);
  46     BOOST_CHECK_EQUAL(std::distance(range2.first, range2.second), ptrdiff_t(3));
  47
  48     std::pair<iterator, iterator> range3 =
  49         boost::compute::equal_range(vector.begin(), vector.end(), int(3), queue);
  50     BOOST_CHECK(range3.first == vector.begin() + 4);
  51     BOOST_CHECK(range3.second == vector.begin() + 6);
  52     BOOST_CHECK_EQUAL(std::distance(range3.first, range3.second), ptrdiff_t(2));
  53
  54     std::pair<iterator, iterator> range4 =
  55         boost::compute::equal_range(vector.begin(), vector.end(), int(4), queue);
  56     BOOST_CHECK(range4.first == vector.begin() + 6);
  57     BOOST_CHECK(range4.second == vector.begin() + 7);
  58     BOOST_CHECK_EQUAL(std::distance(range4.first, range4.second), ptrdiff_t(1));
  59
  60     std::pair<iterator, iterator> range5 =
  61         boost::compute::equal_range(vector.begin(), vector.end(), int(5), queue);
  62     BOOST_CHECK(range5.first == vector.begin() + 7);
  63     BOOST_CHECK(range5.second == vector.end());
  64     BOOST_CHECK_EQUAL(std::distance(range5.first, range5.second), ptrdiff_t(1));
  65
  66     std::pair<iterator, iterator> range6 =
  67         boost::compute::equal_range(vector.begin(), vector.end(), int(6), queue);
  68     BOOST_CHECK(range6.first == vector.end());
  69     BOOST_CHECK(range6.second == vector.end());
  70     BOOST_CHECK_EQUAL(std::distance(range6.first, range6.second), ptrdiff_t(0));
  71 }
  72
  73 BOOST_AUTO_TEST_SUITE_END()