projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 1e59de90 TL |
1 | /* |
| 2 | Copyright 2019 Glen Joseph Fernandes | |
| 3 | (glenjofe@gmail.com) | |
| 4 | ||
| 5 | Distributed under the Boost Software License, Version 1.0. | |
| 6 | (http://www.boost.org/LICENSE_1_0.txt) | |
| 7 | */ | |
| 8 | #include <boost/config.hpp> | |
| 9 | #if !defined(BOOST_NO_CXX11_CONSTEXPR) && !defined(BOOST_NO_CXX11_DECLTYPE) | |
| 10 | #include <boost/core/span.hpp> | |
| 11 | #include <boost/core/lightweight_test_trait.hpp> | |
| 12 | ||
| 13 | template<class T> | |
| 14 | struct range { | |
| 15 | T* data() { | |
| 16 | return 0; | |
| 17 | } | |
| 18 | ||
| 19 | const T* data() const { | |
| 20 | return 0; | |
| 21 | } | |
| 22 | ||
| 23 | std::size_t size() const { | |
| 24 | return 0; | |
| 25 | } | |
| 26 | }; | |
| 27 | ||
| 28 | struct base { }; | |
| 29 | ||
| 30 | struct derived | |
| 31 | : base { }; | |
| 32 | ||
| 33 | void test_default() | |
| 34 | { | |
| 35 | BOOST_TEST_TRAIT_TRUE((std::is_default_constructible< | |
| 36 | boost::span<int> >)); | |
| 37 | BOOST_TEST_TRAIT_TRUE((std::is_default_constructible< | |
| 38 | boost::span<int, 0> >)); | |
| 39 | BOOST_TEST_TRAIT_FALSE((std::is_default_constructible< | |
| 40 | boost::span<int, 2> >)); | |
| 41 | } | |
| 42 | ||
| 43 | void test_data_size() | |
| 44 | { | |
| 45 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<int>, | |
| 46 | int*, std::size_t>)); | |
| 47 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<const int>, | |
| 48 | int*, std::size_t>)); | |
| 49 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int>, | |
| 50 | int, std::size_t>)); | |
| 51 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int>, | |
| 52 | const int*, std::size_t>)); | |
| 53 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<base>, | |
| 54 | derived*, std::size_t>)); | |
| 55 | } | |
| 56 | ||
| 57 | void test_first_last() | |
| 58 | { | |
| 59 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<int>, | |
| 60 | int*, int*>)); | |
| 61 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<int>, | |
| 62 | int*, const int*>)); | |
| 63 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<const int>, | |
| 64 | int*, int*>)); | |
| 65 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int>, | |
| 66 | int, int*>)); | |
| 67 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int>, | |
| 68 | const int*, int*>)); | |
| 69 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<base>, | |
| 70 | derived*, derived*>)); | |
| 71 | } | |
| 72 | ||
| 73 | void test_array() | |
| 74 | { | |
| 75 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<int>, | |
| 76 | int(&)[4]>)); | |
| 77 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<int, 4>, | |
| 78 | int(&)[4]>)); | |
| 79 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int, 2>, | |
| 80 | int(&)[4]>)); | |
| 81 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int, 4>, | |
| 82 | int(&)[2]>)); | |
| 83 | } | |
| 84 | ||
| 85 | void test_std_array() | |
| 86 | { | |
| 87 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<int>, | |
| 88 | std::array<int, 4>&>)); | |
| 89 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<const int>, | |
| 90 | std::array<int, 4>&>)); | |
| 91 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<int, 4>, | |
| 92 | std::array<int, 4>&>)); | |
| 93 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<const int, | |
| 94 | 4>, std::array<int, 4>&>)); | |
| 95 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int>, | |
| 96 | std::array<const int, 4>&>)); | |
| 97 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<base>, | |
| 98 | std::array<derived, 4>&>)); | |
| 99 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int, 2>, | |
| 100 | std::array<int, 4>&>)); | |
| 101 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int, 4>, | |
| 102 | std::array<const int, 4>&>)); | |
| 103 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<base, 4>, | |
| 104 | std::array<derived, 4>&>)); | |
| 105 | } | |
| 106 | ||
| 107 | void test_const_std_array() | |
| 108 | { | |
| 109 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<const int>, | |
| 110 | const std::array<int, 4> >)); | |
| 111 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<const int, | |
| 112 | 4>, const std::array<int, 4> >)); | |
| 113 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int>, | |
| 114 | const std::array<int, 4> >)); | |
| 115 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<const | |
| 116 | base>, const std::array<derived, 4> >)); | |
| 117 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<const int, | |
| 118 | 2>, const std::array<int, 4> >)); | |
| 119 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int, 4>, | |
| 120 | const std::array<int, 4> >)); | |
| 121 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<const | |
| 122 | base, 4>, const std::array<derived, 4> >)); | |
| 123 | } | |
| 124 | ||
| 125 | void test_range() | |
| 126 | { | |
| 127 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<int>, | |
| 128 | range<int>&>)); | |
| 129 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<const int>, | |
| 130 | range<int>&>)); | |
| 131 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<const int>, | |
| 132 | range<int> >)); | |
| 133 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int>, | |
| 134 | int*>)); | |
| 135 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int>, | |
| 136 | range<int> >)); | |
| 137 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int>, | |
| 138 | const range<int>&>)); | |
| 139 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<base>, | |
| 140 | range<derived>&>)); | |
| 141 | } | |
| 142 | ||
| 143 | void test_span() | |
| 144 | { | |
| 145 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<const int>, | |
| 146 | boost::span<int> >)); | |
| 147 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<int>, | |
| 148 | boost::span<int, 4> >)); | |
| 149 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<int, 4>, | |
| 150 | boost::span<int> >)); | |
| 151 | BOOST_TEST_TRAIT_TRUE((std::is_constructible<boost::span<const int, | |
| 152 | 4>, boost::span<int, 4> >)); | |
| 153 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int>, | |
| 154 | boost::span<const int> >)); | |
| 155 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<base>, | |
| 156 | boost::span<derived> >)); | |
| 157 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int, 2>, | |
| 158 | boost::span<int, 4> >)); | |
| 159 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<int, 4>, | |
| 160 | boost::span<const int, 4> >)); | |
| 161 | BOOST_TEST_TRAIT_FALSE((std::is_constructible<boost::span<base, 4>, | |
| 162 | boost::span<derived, 4> >)); | |
| 163 | } | |
| 164 | ||
| 165 | void test_copy() | |
| 166 | { | |
| 167 | BOOST_TEST_TRAIT_TRUE((std::is_copy_constructible< | |
| 168 | boost::span<int> >)); | |
| 169 | BOOST_TEST_TRAIT_TRUE((std::is_copy_constructible< | |
| 170 | boost::span<int, 4> >)); | |
| 171 | } | |
| 172 | ||
| 173 | void test_assign() | |
| 174 | { | |
| 175 | BOOST_TEST_TRAIT_TRUE((std::is_copy_assignable< | |
| 176 | boost::span<int> >)); | |
| 177 | BOOST_TEST_TRAIT_TRUE((std::is_copy_assignable< | |
| 178 | boost::span<int, 4> >)); | |
| 179 | } | |
| 180 | ||
| 181 | int main() | |
| 182 | { | |
| 183 | test_default(); | |
| 184 | test_data_size(); | |
| 185 | test_first_last(); | |
| 186 | test_array(); | |
| 187 | test_std_array(); | |
| 188 | test_const_std_array(); | |
| 189 | test_range(); | |
| 190 | test_span(); | |
| 191 | test_copy(); | |
| 192 | test_assign(); | |
| 193 | return boost::report_errors(); | |
| 194 | } | |
| 195 | #else | |
| 196 | int main() | |
| 197 | { | |
| 198 | return 0; | |
| 199 | } | |
| 200 | #endif |