make_local_shared_const_test.cpp 6.7 KB

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  1. // make_local_shared_const_test.cpp
  2. //
  3. // Copyright 2007-2009, 2017, 2018 Peter Dimov
  4. //
  5. // Distributed under the Boost Software License, Version 1.0.
  6. // See accompanying file LICENSE_1_0.txt or copy at
  7. // http://www.boost.org/LICENSE_1_0.txt
  8. #include <boost/config.hpp>
  9. #if defined( BOOST_NO_CXX11_RVALUE_REFERENCES ) || defined( BOOST_NO_CXX11_VARIADIC_TEMPLATES )
  10. int main()
  11. {
  12. }
  13. #else
  14. #include <boost/core/lightweight_test.hpp>
  15. #include <boost/smart_ptr/make_local_shared.hpp>
  16. #include <boost/smart_ptr/local_shared_ptr.hpp>
  17. #include <boost/weak_ptr.hpp>
  18. #include <cstddef>
  19. class X
  20. {
  21. private:
  22. X( X const & );
  23. X & operator=( X const & );
  24. void * operator new( std::size_t n )
  25. {
  26. // lack of this definition causes link errors on Comeau C++
  27. BOOST_ERROR( "private X::new called" );
  28. return ::operator new( n );
  29. }
  30. void operator delete( void * p )
  31. {
  32. // lack of this definition causes link errors on MSVC
  33. BOOST_ERROR( "private X::delete called" );
  34. ::operator delete( p );
  35. }
  36. public:
  37. static int instances;
  38. int v;
  39. explicit X( int a1 = 0, int a2 = 0, int a3 = 0, int a4 = 0, int a5 = 0, int a6 = 0, int a7 = 0, int a8 = 0, int a9 = 0 ): v( a1+a2+a3+a4+a5+a6+a7+a8+a9 )
  40. {
  41. ++instances;
  42. }
  43. ~X()
  44. {
  45. --instances;
  46. }
  47. };
  48. int X::instances = 0;
  49. template<class T> static long use_count( boost::local_shared_ptr<T> const & p )
  50. {
  51. return boost::shared_ptr<T>( p ).use_count() - 1;
  52. }
  53. int main()
  54. {
  55. {
  56. boost::local_shared_ptr<int const> pi = boost::make_local_shared<int const>();
  57. BOOST_TEST( pi.get() != 0 );
  58. BOOST_TEST( pi.local_use_count() == 1 );
  59. BOOST_TEST( use_count( pi ) == 1 );
  60. BOOST_TEST( *pi == 0 );
  61. }
  62. {
  63. boost::local_shared_ptr<int const> pi = boost::make_local_shared<int const>( 5 );
  64. BOOST_TEST( pi.get() != 0 );
  65. BOOST_TEST( pi.local_use_count() == 1 );
  66. BOOST_TEST( use_count( pi ) == 1 );
  67. BOOST_TEST( *pi == 5 );
  68. }
  69. BOOST_TEST( X::instances == 0 );
  70. {
  71. boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>();
  72. boost::weak_ptr<X const> wp( pi );
  73. BOOST_TEST( X::instances == 1 );
  74. BOOST_TEST( pi.get() != 0 );
  75. BOOST_TEST( pi.local_use_count() == 1 );
  76. BOOST_TEST( use_count( pi ) == 1 );
  77. BOOST_TEST( pi->v == 0 );
  78. pi.reset();
  79. BOOST_TEST( X::instances == 0 );
  80. }
  81. {
  82. boost::local_shared_ptr<X const> pi = boost::make_local_shared_noinit<X const>();
  83. boost::weak_ptr<X const> wp( pi );
  84. BOOST_TEST( X::instances == 1 );
  85. BOOST_TEST( pi.get() != 0 );
  86. BOOST_TEST( pi.local_use_count() == 1 );
  87. BOOST_TEST( use_count( pi ) == 1 );
  88. BOOST_TEST( pi->v == 0 );
  89. pi.reset();
  90. BOOST_TEST( X::instances == 0 );
  91. }
  92. {
  93. boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( 1 );
  94. boost::weak_ptr<X const> wp( pi );
  95. BOOST_TEST( X::instances == 1 );
  96. BOOST_TEST( pi.get() != 0 );
  97. BOOST_TEST( pi.local_use_count() == 1 );
  98. BOOST_TEST( use_count( pi ) == 1 );
  99. BOOST_TEST( pi->v == 1 );
  100. pi.reset();
  101. BOOST_TEST( X::instances == 0 );
  102. }
  103. {
  104. boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( 1, 2 );
  105. boost::weak_ptr<X const> wp( pi );
  106. BOOST_TEST( X::instances == 1 );
  107. BOOST_TEST( pi.get() != 0 );
  108. BOOST_TEST( pi.local_use_count() == 1 );
  109. BOOST_TEST( use_count( pi ) == 1 );
  110. BOOST_TEST( pi->v == 1+2 );
  111. pi.reset();
  112. BOOST_TEST( X::instances == 0 );
  113. }
  114. {
  115. boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( 1, 2, 3 );
  116. boost::weak_ptr<X const> wp( pi );
  117. BOOST_TEST( X::instances == 1 );
  118. BOOST_TEST( pi.get() != 0 );
  119. BOOST_TEST( pi.local_use_count() == 1 );
  120. BOOST_TEST( use_count( pi ) == 1 );
  121. BOOST_TEST( pi->v == 1+2+3 );
  122. pi.reset();
  123. BOOST_TEST( X::instances == 0 );
  124. }
  125. {
  126. boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( 1, 2, 3, 4 );
  127. boost::weak_ptr<X const> wp( pi );
  128. BOOST_TEST( X::instances == 1 );
  129. BOOST_TEST( pi.get() != 0 );
  130. BOOST_TEST( pi.local_use_count() == 1 );
  131. BOOST_TEST( use_count( pi ) == 1 );
  132. BOOST_TEST( pi->v == 1+2+3+4 );
  133. pi.reset();
  134. BOOST_TEST( X::instances == 0 );
  135. }
  136. {
  137. boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( 1, 2, 3, 4, 5 );
  138. boost::weak_ptr<X const> wp( pi );
  139. BOOST_TEST( X::instances == 1 );
  140. BOOST_TEST( pi.get() != 0 );
  141. BOOST_TEST( pi.local_use_count() == 1 );
  142. BOOST_TEST( use_count( pi ) == 1 );
  143. BOOST_TEST( pi->v == 1+2+3+4+5 );
  144. pi.reset();
  145. BOOST_TEST( X::instances == 0 );
  146. }
  147. {
  148. boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( 1, 2, 3, 4, 5, 6 );
  149. boost::weak_ptr<X const> wp( pi );
  150. BOOST_TEST( X::instances == 1 );
  151. BOOST_TEST( pi.get() != 0 );
  152. BOOST_TEST( pi.local_use_count() == 1 );
  153. BOOST_TEST( use_count( pi ) == 1 );
  154. BOOST_TEST( pi->v == 1+2+3+4+5+6 );
  155. pi.reset();
  156. BOOST_TEST( X::instances == 0 );
  157. }
  158. {
  159. boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( 1, 2, 3, 4, 5, 6, 7 );
  160. boost::weak_ptr<X const> wp( pi );
  161. BOOST_TEST( X::instances == 1 );
  162. BOOST_TEST( pi.get() != 0 );
  163. BOOST_TEST( pi.local_use_count() == 1 );
  164. BOOST_TEST( use_count( pi ) == 1 );
  165. BOOST_TEST( pi->v == 1+2+3+4+5+6+7 );
  166. pi.reset();
  167. BOOST_TEST( X::instances == 0 );
  168. }
  169. {
  170. boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( 1, 2, 3, 4, 5, 6, 7, 8 );
  171. boost::weak_ptr<X const> wp( pi );
  172. BOOST_TEST( X::instances == 1 );
  173. BOOST_TEST( pi.get() != 0 );
  174. BOOST_TEST( pi.local_use_count() == 1 );
  175. BOOST_TEST( use_count( pi ) == 1 );
  176. BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8 );
  177. pi.reset();
  178. BOOST_TEST( X::instances == 0 );
  179. }
  180. {
  181. boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( 1, 2, 3, 4, 5, 6, 7, 8, 9 );
  182. boost::weak_ptr<X const> wp( pi );
  183. BOOST_TEST( X::instances == 1 );
  184. BOOST_TEST( pi.get() != 0 );
  185. BOOST_TEST( pi.local_use_count() == 1 );
  186. BOOST_TEST( use_count( pi ) == 1 );
  187. BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8+9 );
  188. pi.reset();
  189. BOOST_TEST( X::instances == 0 );
  190. }
  191. return boost::report_errors();
  192. }
  193. #endif