ceph/src/boost/libs/lexical_cast/test/lexical_cast_stream_traits_test.cpp

   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, 2012-2020.
   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
  11 #include <boost/config.hpp>
  12
  13 #include <boost/lexical_cast/detail/converter_lexical.hpp>
  14
  15 #include <boost/test/unit_test.hpp>
  16
  17 template <class T>
  18 static void test_optimized_types_to_string_const()
  19 {
  20     namespace de = boost::detail;
  21     typedef de::lexical_cast_stream_traits<T, std::string> trait_1;
  22     BOOST_CHECK(!trait_1::is_source_input_not_optimized_t::value);
  23     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_1::src_char_t, char>::value));
  24     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_1::target_char_t, char>::value));
  25     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_1::char_type, char>::value));
  26     BOOST_CHECK(!trait_1::is_string_widening_required_t::value);
  27     BOOST_CHECK(!trait_1::is_source_input_not_optimized_t::value);
  28
  29     typedef de::lexical_cast_stream_traits<const T, std::string> trait_2;
  30     BOOST_CHECK(!trait_2::is_source_input_not_optimized_t::value);
  31     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_2::src_char_t, char>::value));
  32     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_2::target_char_t, char>::value));
  33     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_2::char_type, char>::value));
  34     BOOST_CHECK(!trait_2::is_string_widening_required_t::value);
  35     BOOST_CHECK(!trait_2::is_source_input_not_optimized_t::value);
  36
  37     typedef de::lexical_cast_stream_traits<T, std::wstring> trait_3;
  38     BOOST_CHECK(!trait_3::is_source_input_not_optimized_t::value);
  39     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_3::src_char_t, char>::value));
  40     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_3::target_char_t, wchar_t>::value));
  41     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_3::char_type, wchar_t>::value));
  42
  43     BOOST_CHECK((boost::detail::is_character<BOOST_DEDUCED_TYPENAME trait_3::no_cv_src>::value != trait_3::is_string_widening_required_t::value));
  44
  45     BOOST_CHECK(!trait_3::is_source_input_not_optimized_t::value);
  46 }
  47
  48
  49 template <class T>
  50 static void test_optimized_types_to_string()
  51 {
  52     test_optimized_types_to_string_const<T>();
  53
  54     namespace de = boost::detail;
  55     typedef de::lexical_cast_stream_traits<std::string, T> trait_4;
  56     BOOST_CHECK(!trait_4::is_source_input_not_optimized_t::value);
  57     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_4::src_char_t, char>::value));
  58     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_4::target_char_t, char>::value));
  59     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_4::char_type, char>::value));
  60     BOOST_CHECK(!trait_4::is_string_widening_required_t::value);
  61     BOOST_CHECK(!trait_4::is_source_input_not_optimized_t::value);
  62
  63     typedef de::lexical_cast_stream_traits<const std::string, T> trait_5;
  64     BOOST_CHECK(!trait_5::is_source_input_not_optimized_t::value);
  65     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_5::src_char_t, char>::value));
  66     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_5::target_char_t, char>::value));
  67     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_5::char_type, char>::value));
  68     BOOST_CHECK(!trait_5::is_string_widening_required_t::value);
  69     BOOST_CHECK(!trait_5::is_source_input_not_optimized_t::value);
  70
  71     typedef de::lexical_cast_stream_traits<const std::wstring, T> trait_6;
  72     BOOST_CHECK(!trait_6::is_source_input_not_optimized_t::value);
  73     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_6::src_char_t, wchar_t>::value));
  74     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_6::target_char_t, char>::value));
  75     BOOST_CHECK((boost::is_same<BOOST_DEDUCED_TYPENAME trait_6::char_type, wchar_t>::value));
  76     BOOST_CHECK(!trait_6::is_string_widening_required_t::value);
  77 }
  78
  79 void test_metafunctions()
  80 {
  81     test_optimized_types_to_string<bool>();
  82     test_optimized_types_to_string<char>();
  83     test_optimized_types_to_string<unsigned char>();
  84     test_optimized_types_to_string<signed char>();
  85     test_optimized_types_to_string<short>();
  86     test_optimized_types_to_string<unsigned short>();
  87     test_optimized_types_to_string<int>();
  88     test_optimized_types_to_string<unsigned int>();
  89     test_optimized_types_to_string<long>();
  90     test_optimized_types_to_string<unsigned long>();
  91
  92 #if defined(BOOST_HAS_LONG_LONG)
  93     test_optimized_types_to_string<boost::ulong_long_type>();
  94     test_optimized_types_to_string<boost::long_long_type>();
  95 #elif defined(BOOST_HAS_MS_INT64)
  96     test_optimized_types_to_string<unsigned __int64>();
  97     test_optimized_types_to_string<__int64>();
  98 #endif
  99
 100     test_optimized_types_to_string<std::string>();
 101     test_optimized_types_to_string<char*>();
 102     //test_optimized_types_to_string<char[5]>();
 103     //test_optimized_types_to_string<char[1]>();
 104     test_optimized_types_to_string<unsigned char*>();
 105     //test_optimized_types_to_string<unsigned char[5]>();
 106     //test_optimized_types_to_string<unsigned char[1]>();
 107     test_optimized_types_to_string<signed char*>();
 108     //test_optimized_types_to_string<signed char[5]>();
 109     //test_optimized_types_to_string<signed char[1]>();
 110     test_optimized_types_to_string<boost::array<char, 1> >();
 111     test_optimized_types_to_string<boost::array<char, 5> >();
 112     test_optimized_types_to_string<boost::array<unsigned char, 1> >();
 113     test_optimized_types_to_string<boost::array<unsigned char, 5> >();
 114     test_optimized_types_to_string<boost::array<signed char, 1> >();
 115     test_optimized_types_to_string<boost::array<signed char, 5> >();
 116     test_optimized_types_to_string<boost::iterator_range<char*> >();
 117     test_optimized_types_to_string<boost::iterator_range<unsigned char*> >();
 118     test_optimized_types_to_string<boost::iterator_range<signed char*> >();
 119
 120     test_optimized_types_to_string_const<boost::array<const char, 1> >();
 121     test_optimized_types_to_string_const<boost::array<const char, 5> >();
 122     test_optimized_types_to_string_const<boost::array<const unsigned char, 1> >();
 123     test_optimized_types_to_string_const<boost::array<const unsigned char, 5> >();
 124     test_optimized_types_to_string_const<boost::array<const signed char, 1> >();
 125     test_optimized_types_to_string_const<boost::array<const signed char, 5> >();
 126     test_optimized_types_to_string_const<boost::iterator_range<const char*> >();
 127     test_optimized_types_to_string_const<boost::iterator_range<const unsigned char*> >();
 128     test_optimized_types_to_string_const<boost::iterator_range<const signed char*> >();
 129
 130 #ifndef BOOST_NO_CXX11_HDR_ARRAY
 131     test_optimized_types_to_string<std::array<char, 1> >();
 132     test_optimized_types_to_string<std::array<char, 5> >();
 133     test_optimized_types_to_string<std::array<unsigned char, 1> >();
 134     test_optimized_types_to_string<std::array<unsigned char, 5> >();
 135     test_optimized_types_to_string<std::array<signed char, 1> >();
 136     test_optimized_types_to_string<std::array<signed char, 5> >();
 137
 138     test_optimized_types_to_string_const<std::array<const char, 1> >();
 139     test_optimized_types_to_string_const<std::array<const char, 5> >();
 140     test_optimized_types_to_string_const<std::array<const unsigned char, 1> >();
 141     test_optimized_types_to_string_const<std::array<const unsigned char, 5> >();
 142     test_optimized_types_to_string_const<std::array<const signed char, 1> >();
 143     test_optimized_types_to_string_const<std::array<const signed char, 5> >();
 144 #endif
 145 }
 146
 147 boost::unit_test::test_suite *init_unit_test_suite(int, char *[])
 148 {
 149     boost::unit_test::test_suite *suite =
 150         BOOST_TEST_SUITE("lexical_cast traits tests");
 151     suite->add(BOOST_TEST_CASE(&test_metafunctions));
 152     return suite;
 153 }
 154