allocate_unique_array_noinit_test.cpp 6.5 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[],
  70. boost::noinit_adaptor<creator<int> > > > result =
  71. boost::allocate_unique_noinit<int[]>(creator<int>(), 3);
  72. BOOST_TEST(result.get() != 0);
  73. }
  74. {
  75. std::unique_ptr<int[],
  76. boost::alloc_deleter<int[3],
  77. boost::noinit_adaptor<creator<int> > > > result =
  78. boost::allocate_unique_noinit<int[3]>(creator<int>());
  79. BOOST_TEST(result.get() != 0);
  80. }
  81. {
  82. std::unique_ptr<int[][2],
  83. boost::alloc_deleter<int[][2],
  84. boost::noinit_adaptor<creator<> > > > result =
  85. boost::allocate_unique_noinit<int[][2]>(creator<>(), 2);
  86. BOOST_TEST(result.get() != 0);
  87. }
  88. {
  89. std::unique_ptr<int[][2],
  90. boost::alloc_deleter<int[2][2],
  91. boost::noinit_adaptor<creator<> > > > result =
  92. boost::allocate_unique_noinit<int[2][2]>(creator<>());
  93. BOOST_TEST(result.get() != 0);
  94. }
  95. {
  96. std::unique_ptr<const int[],
  97. boost::alloc_deleter<const int[],
  98. boost::noinit_adaptor<creator<> > > > result =
  99. boost::allocate_unique_noinit<const int[]>(creator<>(), 3);
  100. BOOST_TEST(result.get() != 0);
  101. }
  102. {
  103. std::unique_ptr<const int[],
  104. boost::alloc_deleter<const int[3],
  105. boost::noinit_adaptor<creator<> > > > result =
  106. boost::allocate_unique_noinit<const int[3]>(creator<>());
  107. BOOST_TEST(result.get() != 0);
  108. }
  109. {
  110. std::unique_ptr<const int[][2],
  111. boost::alloc_deleter<const int[][2],
  112. boost::noinit_adaptor<creator<> > > > result =
  113. boost::allocate_unique_noinit<const int[][2]>(creator<>(), 2);
  114. BOOST_TEST(result.get() != 0);
  115. }
  116. {
  117. std::unique_ptr<const int[][2],
  118. boost::alloc_deleter<const int[2][2],
  119. boost::noinit_adaptor<creator<> > > > result =
  120. boost::allocate_unique_noinit<const int[2][2]>(creator<>());
  121. BOOST_TEST(result.get() != 0);
  122. }
  123. {
  124. std::unique_ptr<type[],
  125. boost::alloc_deleter<type[],
  126. boost::noinit_adaptor<creator<type> > > > result =
  127. boost::allocate_unique_noinit<type[]>(creator<type>(), 3);
  128. BOOST_TEST(result.get() != 0);
  129. BOOST_TEST(type::instances == 3);
  130. result.reset();
  131. BOOST_TEST(type::instances == 0);
  132. }
  133. {
  134. std::unique_ptr<type[],
  135. boost::alloc_deleter<type[3],
  136. boost::noinit_adaptor<creator<type> > > > result =
  137. boost::allocate_unique_noinit<type[3]>(creator<type>());
  138. BOOST_TEST(result.get() != 0);
  139. BOOST_TEST(type::instances == 3);
  140. result.reset();
  141. BOOST_TEST(type::instances == 0);
  142. }
  143. {
  144. std::unique_ptr<type[][2],
  145. boost::alloc_deleter<type[][2],
  146. boost::noinit_adaptor<creator<> > > > result =
  147. boost::allocate_unique_noinit<type[][2]>(creator<>(), 2);
  148. BOOST_TEST(result.get() != 0);
  149. BOOST_TEST(type::instances == 4);
  150. result.reset();
  151. BOOST_TEST(type::instances == 0);
  152. }
  153. {
  154. std::unique_ptr<type[][2],
  155. boost::alloc_deleter<type[2][2],
  156. boost::noinit_adaptor<creator<> > > > result =
  157. boost::allocate_unique_noinit<type[2][2]>(creator<>());
  158. BOOST_TEST(result.get() != 0);
  159. BOOST_TEST(type::instances == 4);
  160. result.reset();
  161. BOOST_TEST(type::instances == 0);
  162. }
  163. {
  164. std::unique_ptr<const type[],
  165. boost::alloc_deleter<const type[],
  166. boost::noinit_adaptor<creator<> > > > result =
  167. boost::allocate_unique_noinit<const type[]>(creator<>(), 3);
  168. BOOST_TEST(result.get() != 0);
  169. BOOST_TEST(type::instances == 3);
  170. result.reset();
  171. BOOST_TEST(type::instances == 0);
  172. }
  173. {
  174. std::unique_ptr<const type[],
  175. boost::alloc_deleter<const type[3],
  176. boost::noinit_adaptor<creator<> > > > result =
  177. boost::allocate_unique_noinit<const type[3]>(creator<>());
  178. BOOST_TEST(result.get() != 0);
  179. BOOST_TEST(type::instances == 3);
  180. result.reset();
  181. BOOST_TEST(type::instances == 0);
  182. }
  183. {
  184. std::unique_ptr<const type[][2],
  185. boost::alloc_deleter<const type[][2],
  186. boost::noinit_adaptor<creator<> > > > result =
  187. boost::allocate_unique_noinit<const type[][2]>(creator<>(), 2);
  188. BOOST_TEST(result.get() != 0);
  189. BOOST_TEST(type::instances == 4);
  190. result.reset();
  191. BOOST_TEST(type::instances == 0);
  192. }
  193. {
  194. std::unique_ptr<const type[][2],
  195. boost::alloc_deleter<const type[2][2],
  196. boost::noinit_adaptor<creator<> > > > result =
  197. boost::allocate_unique_noinit<const type[2][2]>(creator<>());
  198. BOOST_TEST(result.get() != 0);
  199. BOOST_TEST(type::instances == 4);
  200. result.reset();
  201. BOOST_TEST(type::instances == 0);
  202. }
  203. return boost::report_errors();
  204. }
  205. #else
  206. int main()
  207. {
  208. return 0;
  209. }
  210. #endif