hash_built_in_array_test.cpp 2.0 KB

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  1. // Copyright 2005-2009 Daniel James.
  2. // Distributed under the Boost Software License, Version 1.0. (See accompanying
  3. // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  4. #include "./config.hpp"
  5. #ifdef BOOST_HASH_TEST_EXTENSIONS
  6. # ifdef BOOST_HASH_TEST_STD_INCLUDES
  7. # include <functional>
  8. # else
  9. # include <boost/container_hash/hash.hpp>
  10. # endif
  11. #endif
  12. #include <boost/core/lightweight_test.hpp>
  13. #ifdef BOOST_HASH_TEST_EXTENSIONS
  14. void array_int_test()
  15. {
  16. const int length1 = 25;
  17. int array1[25] = {
  18. 26, -43, 32, 65, 45,
  19. 12, 67, 32, 12, 23,
  20. 0, 0, 0, 0, 0,
  21. 8, -12, 23, 65, 45,
  22. -1, 93, -54, 987, 3
  23. };
  24. BOOST_HASH_TEST_NAMESPACE::hash<int[25]> hasher1;
  25. const int length2 = 1;
  26. int array2[1] = {3};
  27. BOOST_HASH_TEST_NAMESPACE::hash<int[1]> hasher2;
  28. const int length3 = 2;
  29. int array3[2] = {2, 3};
  30. BOOST_HASH_TEST_NAMESPACE::hash<int[2]> hasher3;
  31. BOOST_TEST(hasher1(array1)
  32. == BOOST_HASH_TEST_NAMESPACE::hash_range(array1, array1 + length1));
  33. BOOST_TEST(hasher2(array2)
  34. == BOOST_HASH_TEST_NAMESPACE::hash_range(array2, array2 + length2));
  35. BOOST_TEST(hasher3(array3)
  36. == BOOST_HASH_TEST_NAMESPACE::hash_range(array3, array3 + length3));
  37. }
  38. void two_dimensional_array_test()
  39. {
  40. int array[3][2] = {{-5, 6}, {7, -3}, {26, 1}};
  41. BOOST_HASH_TEST_NAMESPACE::hash<int[3][2]> hasher;
  42. std::size_t seed1 = 0;
  43. for(int i = 0; i < 3; ++i)
  44. {
  45. std::size_t seed2 = 0;
  46. for(int j = 0; j < 2; ++j)
  47. BOOST_HASH_TEST_NAMESPACE::hash_combine(seed2, array[i][j]);
  48. BOOST_HASH_TEST_NAMESPACE::hash_combine(seed1, seed2);
  49. }
  50. BOOST_TEST(hasher(array) == seed1);
  51. BOOST_TEST(hasher(array) == BOOST_HASH_TEST_NAMESPACE::hash_range(array, array + 3));
  52. }
  53. #endif // BOOST_HASH_TEST_EXTENSIONS
  54. int main()
  55. {
  56. #ifdef BOOST_HASH_TEST_EXTENSIONS
  57. array_int_test();
  58. two_dimensional_array_test();
  59. #endif
  60. return boost::report_errors();
  61. }