lexical_cast_wchars_test.cpp 4.5 KB

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  1. // Unit test for boost::lexical_cast.
  2. //
  3. // See http://www.boost.org for most recent version, including documentation.
  4. //
  5. // Copyright Antony Polukhin, 2011-2019.
  6. //
  7. // Distributed under the Boost
  8. // Software License, Version 1.0. (See accompanying file
  9. // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt).
  10. #include <boost/config.hpp>
  11. #if defined(__INTEL_COMPILER)
  12. #pragma warning(disable: 193 383 488 981 1418 1419)
  13. #elif defined(BOOST_MSVC)
  14. #pragma warning(disable: 4097 4100 4121 4127 4146 4244 4245 4511 4512 4701 4800)
  15. #endif
  16. #include <boost/lexical_cast.hpp>
  17. #include <boost/test/unit_test.hpp>
  18. using namespace boost;
  19. #if defined(BOOST_NO_STRINGSTREAM) || defined(BOOST_NO_STD_WSTRING)
  20. #define BOOST_LCAST_NO_WCHAR_T
  21. #endif
  22. template <class CharT>
  23. void test_impl(const CharT* wc_arr)
  24. {
  25. typedef CharT wide_char;
  26. typedef std::basic_string<CharT> wide_string;
  27. const char c_arr[] = "Test array of chars";
  28. const unsigned char uc_arr[] = "Test array of chars";
  29. const signed char sc_arr[] = "Test array of chars";
  30. // Following tests depend on realization of std::locale
  31. // and pass for popular compilers and STL realizations
  32. BOOST_CHECK(boost::lexical_cast<wide_char>(c_arr[0]) == wc_arr[0]);
  33. BOOST_CHECK(boost::lexical_cast<wide_string>(c_arr) == wide_string(wc_arr));
  34. BOOST_CHECK(boost::lexical_cast<wide_string>(sc_arr) == wide_string(wc_arr) );
  35. BOOST_CHECK(boost::lexical_cast<wide_string>(uc_arr) == wide_string(wc_arr) );
  36. BOOST_CHECK_EQUAL(boost::lexical_cast<wide_char>(uc_arr[0]), wc_arr[0]);
  37. BOOST_CHECK_EQUAL(boost::lexical_cast<wide_char>(sc_arr[0]), wc_arr[0]);
  38. }
  39. void test_char_types_conversions_wchar_t()
  40. {
  41. #ifndef BOOST_LCAST_NO_WCHAR_T
  42. test_impl(L"Test array of chars");
  43. wchar_t c = boost::detail::lcast_char_constants<wchar_t>::zero;
  44. BOOST_CHECK_EQUAL(L'0', c);
  45. c = boost::detail::lcast_char_constants<wchar_t>::minus;
  46. BOOST_CHECK_EQUAL(L'-', c);
  47. c = boost::detail::lcast_char_constants<wchar_t>::plus;
  48. BOOST_CHECK_EQUAL(L'+', c);
  49. c = boost::detail::lcast_char_constants<wchar_t>::lowercase_e;
  50. BOOST_CHECK_EQUAL(L'e', c);
  51. c = boost::detail::lcast_char_constants<wchar_t>::capital_e;
  52. BOOST_CHECK_EQUAL(L'E', c);
  53. c = boost::detail::lcast_char_constants<wchar_t>::c_decimal_separator;
  54. BOOST_CHECK_EQUAL(L'.', c);
  55. #endif
  56. BOOST_CHECK(true);
  57. }
  58. void test_char_types_conversions_char16_t()
  59. {
  60. #if !defined(BOOST_NO_CXX11_CHAR16_T) && !defined(BOOST_NO_CXX11_UNICODE_LITERALS) && defined(BOOST_STL_SUPPORTS_NEW_UNICODE_LOCALES)
  61. test_impl(u"Test array of chars");
  62. char16_t c = boost::detail::lcast_char_constants<char16_t>::zero;
  63. BOOST_CHECK_EQUAL(u'0', c);
  64. c = boost::detail::lcast_char_constants<char16_t>::minus;
  65. BOOST_CHECK_EQUAL(u'-', c);
  66. c = boost::detail::lcast_char_constants<char16_t>::plus;
  67. BOOST_CHECK_EQUAL(u'+', c);
  68. c = boost::detail::lcast_char_constants<char16_t>::lowercase_e;
  69. BOOST_CHECK_EQUAL(u'e', c);
  70. c = boost::detail::lcast_char_constants<char16_t>::capital_e;
  71. BOOST_CHECK_EQUAL(u'E', c);
  72. c = boost::detail::lcast_char_constants<char16_t>::c_decimal_separator;
  73. BOOST_CHECK_EQUAL(u'.', c);
  74. #endif
  75. BOOST_CHECK(true);
  76. }
  77. void test_char_types_conversions_char32_t()
  78. {
  79. #if !defined(BOOST_NO_CXX11_CHAR32_T) && !defined(BOOST_NO_CXX11_UNICODE_LITERALS) && defined(BOOST_STL_SUPPORTS_NEW_UNICODE_LOCALES)
  80. test_impl(U"Test array of chars");
  81. char32_t c = boost::detail::lcast_char_constants<char32_t>::zero;
  82. BOOST_CHECK_EQUAL(U'0', c);
  83. c = boost::detail::lcast_char_constants<char32_t>::minus;
  84. BOOST_CHECK_EQUAL(U'-', c);
  85. c = boost::detail::lcast_char_constants<char32_t>::plus;
  86. BOOST_CHECK_EQUAL(U'+', c);
  87. c = boost::detail::lcast_char_constants<char32_t>::lowercase_e;
  88. BOOST_CHECK_EQUAL(U'e', c);
  89. c = boost::detail::lcast_char_constants<char32_t>::capital_e;
  90. BOOST_CHECK_EQUAL(U'E', c);
  91. c = boost::detail::lcast_char_constants<char32_t>::c_decimal_separator;
  92. BOOST_CHECK_EQUAL(U'.', c);
  93. #endif
  94. BOOST_CHECK(true);
  95. }
  96. unit_test::test_suite *init_unit_test_suite(int, char *[])
  97. {
  98. unit_test::test_suite *suite =
  99. BOOST_TEST_SUITE("lexical_cast char => wide characters unit test (widening test)");
  100. suite->add(BOOST_TEST_CASE(&test_char_types_conversions_wchar_t));
  101. suite->add(BOOST_TEST_CASE(&test_char_types_conversions_char16_t));
  102. suite->add(BOOST_TEST_CASE(&test_char_types_conversions_char32_t));
  103. return suite;
  104. }