allocate_unique_array_test.cpp 6.9 KB

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  1. /*
  2. Copyright 2019 Glen Joseph Fernandes
  3. (glenjofe@gmail.com)
  4. Distributed under the Boost Software License, Version 1.0.
  5. (http://www.boost.org/LICENSE_1_0.txt)
  6. */
  7. #include <boost/config.hpp>
  8. #if (!defined(BOOST_LIBSTDCXX_VERSION) || \
  9. BOOST_LIBSTDCXX_VERSION >= 48000) && \
  10. !defined(BOOST_NO_CXX11_SMART_PTR)
  11. #include <boost/smart_ptr/allocate_unique.hpp>
  12. #include <boost/core/lightweight_test.hpp>
  13. template<class T = void>
  14. struct creator {
  15. typedef T value_type;
  16. typedef T* pointer;
  17. template<class U>
  18. struct rebind {
  19. typedef creator<U> other;
  20. };
  21. creator() { }
  22. template<class U>
  23. creator(const creator<U>&) { }
  24. T* allocate(std::size_t size) {
  25. return static_cast<T*>(::operator new(sizeof(T) * size));
  26. }
  27. void deallocate(T* ptr, std::size_t) {
  28. ::operator delete(ptr);
  29. }
  30. };
  31. template<class T, class U>
  32. inline bool
  33. operator==(const creator<T>&, const creator<U>&)
  34. {
  35. return true;
  36. }
  37. template<class T, class U>
  38. inline bool
  39. operator!=(const creator<T>&, const creator<U>&)
  40. {
  41. return false;
  42. }
  43. class type {
  44. public:
  45. static unsigned instances;
  46. type()
  47. : value_(0.0) {
  48. ++instances;
  49. }
  50. ~type() {
  51. --instances;
  52. }
  53. void set(long double value) {
  54. value_ = value;
  55. }
  56. long double get() const {
  57. return value_;
  58. }
  59. private:
  60. type(const type&);
  61. type& operator=(const type&);
  62. long double value_;
  63. };
  64. unsigned type::instances = 0;
  65. int main()
  66. {
  67. {
  68. std::unique_ptr<int[],
  69. boost::alloc_deleter<int[], creator<int> > > result =
  70. boost::allocate_unique<int[]>(creator<int>(), 3);
  71. BOOST_TEST(result.get() != 0);
  72. BOOST_TEST(result[0] == 0);
  73. BOOST_TEST(result[1] == 0);
  74. BOOST_TEST(result[2] == 0);
  75. }
  76. {
  77. std::unique_ptr<int[],
  78. boost::alloc_deleter<int[3], creator<int> > > result =
  79. boost::allocate_unique<int[3]>(creator<int>());
  80. BOOST_TEST(result.get() != 0);
  81. BOOST_TEST(result[0] == 0);
  82. BOOST_TEST(result[1] == 0);
  83. BOOST_TEST(result[2] == 0);
  84. }
  85. {
  86. std::unique_ptr<int[][2],
  87. boost::alloc_deleter<int[][2], creator<> > > result =
  88. boost::allocate_unique<int[][2]>(creator<>(), 2);
  89. BOOST_TEST(result.get() != 0);
  90. BOOST_TEST(result[0][0] == 0);
  91. BOOST_TEST(result[0][1] == 0);
  92. BOOST_TEST(result[1][0] == 0);
  93. BOOST_TEST(result[1][1] == 0);
  94. }
  95. {
  96. std::unique_ptr<int[][2],
  97. boost::alloc_deleter<int[2][2], creator<> > > result =
  98. boost::allocate_unique<int[2][2]>(creator<>());
  99. BOOST_TEST(result.get() != 0);
  100. BOOST_TEST(result[0][0] == 0);
  101. BOOST_TEST(result[0][1] == 0);
  102. BOOST_TEST(result[1][0] == 0);
  103. BOOST_TEST(result[1][1] == 0);
  104. }
  105. {
  106. std::unique_ptr<const int[],
  107. boost::alloc_deleter<const int[], creator<> > > result =
  108. boost::allocate_unique<const int[]>(creator<>(), 3);
  109. BOOST_TEST(result.get() != 0);
  110. BOOST_TEST(result[0] == 0);
  111. BOOST_TEST(result[1] == 0);
  112. BOOST_TEST(result[2] == 0);
  113. }
  114. {
  115. std::unique_ptr<const int[],
  116. boost::alloc_deleter<const int[3], creator<> > > result =
  117. boost::allocate_unique<const int[3]>(creator<>());
  118. BOOST_TEST(result.get() != 0);
  119. BOOST_TEST(result[0] == 0);
  120. BOOST_TEST(result[1] == 0);
  121. BOOST_TEST(result[2] == 0);
  122. }
  123. {
  124. std::unique_ptr<const int[][2],
  125. boost::alloc_deleter<const int[][2], creator<> > > result =
  126. boost::allocate_unique<const int[][2]>(creator<>(), 2);
  127. BOOST_TEST(result.get() != 0);
  128. BOOST_TEST(result[0][0] == 0);
  129. BOOST_TEST(result[0][1] == 0);
  130. BOOST_TEST(result[1][0] == 0);
  131. BOOST_TEST(result[1][1] == 0);
  132. }
  133. {
  134. std::unique_ptr<const int[][2],
  135. boost::alloc_deleter<const int[2][2], creator<> > > result =
  136. boost::allocate_unique<const int[2][2]>(creator<>());
  137. BOOST_TEST(result.get() != 0);
  138. BOOST_TEST(result[0][0] == 0);
  139. BOOST_TEST(result[0][1] == 0);
  140. BOOST_TEST(result[1][0] == 0);
  141. BOOST_TEST(result[1][1] == 0);
  142. }
  143. {
  144. std::unique_ptr<type[],
  145. boost::alloc_deleter<type[], creator<type> > > result =
  146. boost::allocate_unique<type[]>(creator<type>(), 3);
  147. BOOST_TEST(result.get() != 0);
  148. BOOST_TEST(type::instances == 3);
  149. result.reset();
  150. BOOST_TEST(type::instances == 0);
  151. }
  152. {
  153. std::unique_ptr<type[],
  154. boost::alloc_deleter<type[3], creator<type> > > result =
  155. boost::allocate_unique<type[3]>(creator<type>());
  156. BOOST_TEST(result.get() != 0);
  157. BOOST_TEST(type::instances == 3);
  158. result.reset();
  159. BOOST_TEST(type::instances == 0);
  160. }
  161. {
  162. std::unique_ptr<type[][2],
  163. boost::alloc_deleter<type[][2], creator<> > > result =
  164. boost::allocate_unique<type[][2]>(creator<>(), 2);
  165. BOOST_TEST(result.get() != 0);
  166. BOOST_TEST(type::instances == 4);
  167. result.reset();
  168. BOOST_TEST(type::instances == 0);
  169. }
  170. {
  171. std::unique_ptr<type[][2],
  172. boost::alloc_deleter<type[2][2], creator<> > > result =
  173. boost::allocate_unique<type[2][2]>(creator<>());
  174. BOOST_TEST(result.get() != 0);
  175. BOOST_TEST(type::instances == 4);
  176. result.reset();
  177. BOOST_TEST(type::instances == 0);
  178. }
  179. {
  180. std::unique_ptr<const type[],
  181. boost::alloc_deleter<const type[], creator<> > > result =
  182. boost::allocate_unique<const type[]>(creator<>(), 3);
  183. BOOST_TEST(result.get() != 0);
  184. BOOST_TEST(type::instances == 3);
  185. result.reset();
  186. BOOST_TEST(type::instances == 0);
  187. }
  188. {
  189. std::unique_ptr<const type[],
  190. boost::alloc_deleter<const type[3], creator<> > > result =
  191. boost::allocate_unique<const type[3]>(creator<>());
  192. BOOST_TEST(result.get() != 0);
  193. BOOST_TEST(type::instances == 3);
  194. result.reset();
  195. BOOST_TEST(type::instances == 0);
  196. }
  197. {
  198. std::unique_ptr<const type[][2],
  199. boost::alloc_deleter<const type[][2], creator<> > > result =
  200. boost::allocate_unique<const type[][2]>(creator<>(), 2);
  201. BOOST_TEST(result.get() != 0);
  202. BOOST_TEST(type::instances == 4);
  203. result.reset();
  204. BOOST_TEST(type::instances == 0);
  205. }
  206. {
  207. std::unique_ptr<const type[][2],
  208. boost::alloc_deleter<const type[2][2], creator<> > > result =
  209. boost::allocate_unique<const type[2][2]>(creator<>());
  210. BOOST_TEST(result.get() != 0);
  211. BOOST_TEST(type::instances == 4);
  212. result.reset();
  213. BOOST_TEST(type::instances == 0);
  214. }
  215. return boost::report_errors();
  216. }
  217. #else
  218. int main()
  219. {
  220. return 0;
  221. }
  222. #endif