ceph/src/boost/libs/any/test/basic_any_test_large_object.cpp

   1 // Copyright Ruslan Arutyunyan, 2019-2021.
   2 // Copyright Antony Polukhin, 2021-2022.
   3 //
   4 // Distributed under the Boost Software License, Version 1.0. (See
   5 // accompanying file LICENSE_1_0.txt or copy at
   6 // http://www.boost.org/LICENSE_1_0.txt)
   7
   8 #include <boost/any/basic_any.hpp>
   9
  10 #include <boost/core/lightweight_test.hpp>
  11
  12 #include <cassert>
  13
  14 static int move_ctors_count = 0;
  15 static int destructors_count = 0;
  16
  17 struct A {
  18     char a[32];
  19
  20     A() {}
  21     A(const A&) {}
  22
  23 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
  24     A(A&&) BOOST_NOEXCEPT {
  25         ++move_ctors_count;
  26     }
  27 #endif
  28
  29     ~A() {
  30         ++destructors_count;
  31     }
  32 };
  33
  34 #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
  35     template <class T>
  36     T&& portable_move(T& value) {
  37         return std::move(value);
  38     }
  39 #else
  40     template <class T>
  41     T& portable_move(T& value) {
  42         return value;
  43     }
  44 #endif
  45
  46 int main() {
  47     {
  48         A a;
  49         boost::anys::basic_any<24, 8> any1(a);
  50         boost::anys::basic_any<24, 8> any2(portable_move(any1));
  51         boost::anys::basic_any<24, 8> any3(portable_move(any2));
  52         BOOST_TEST_EQ(move_ctors_count, 0);
  53     }
  54
  55 #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
  56     BOOST_TEST_EQ(destructors_count, 2);
  57 #else
  58     BOOST_TEST_EQ(destructors_count, 4);
  59 #endif
  60
  61     return boost::report_errors();
  62 }