ceph/src/boost/libs/core/test/swap/array_of_array_of_int.cpp

   1 // Copyright (c) 2008 Joseph Gauterin, Niels Dekker
   2 //
   3 // Distributed under the Boost Software License, Version 1.0.
   4 // (See accompanying file LICENSE_1_0.txt or copy at
   5 // http://www.boost.org/LICENSE_1_0.txt)
   6
   7 // Tests swapping an array of arrays of integers by means of boost::swap.
   8
   9 #include <boost/utility/swap.hpp>
  10 #include <boost/core/lightweight_test.hpp>
  11 #define BOOST_CHECK BOOST_TEST
  12 #define BOOST_CHECK_EQUAL BOOST_TEST_EQ
  13
  14 #include <algorithm> //for std::copy and std::equal
  15 #include <cstddef> //for std::size_t
  16
  17 int main()
  18 {
  19   const std::size_t first_dimension = 3;
  20   const std::size_t second_dimension = 4;
  21   const std::size_t number_of_elements = first_dimension * second_dimension;
  22
  23   int array1[first_dimension][second_dimension];
  24   int array2[first_dimension][second_dimension];
  25
  26   int* const ptr1 = array1[0];
  27   int* const ptr2 = array2[0];
  28
  29   for (std::size_t i = 0; i < number_of_elements; ++i)
  30   {
  31     ptr1[i] = static_cast<int>(i);
  32     ptr2[i] = static_cast<int>(i + number_of_elements);
  33   }
  34
  35   boost::swap(array1, array2);
  36
  37   for (std::size_t i = 0; i < number_of_elements; ++i)
  38   {
  39     BOOST_CHECK_EQUAL(ptr1[i], static_cast<int>(i + number_of_elements) );
  40     BOOST_CHECK_EQUAL(ptr2[i], static_cast<int>(i) );
  41   }
  42
  43   return boost::report_errors();
  44 }