| 1 | #include <boost/config.hpp> |
|---|---|
| 2 | |
| 3 | // shared_ptr_alloc3_test.cpp |
| 4 | // |
| 5 | // Copyright (c) 2005, 2014 Peter Dimov |
| 6 | // |
| 7 | // Distributed under the Boost Software License, Version 1.0. |
| 8 | // See accompanying file LICENSE_1_0.txt or copy at |
| 9 | // http://www.boost.org/LICENSE_1_0.txt |
| 10 | |
| 11 | |
| 12 | #include <boost/core/lightweight_test.hpp> |
| 13 | #include <boost/shared_ptr.hpp> |
| 14 | #include <memory> |
| 15 | #include <cstddef> |
| 16 | |
| 17 | // |
| 18 | |
| 19 | struct D; |
| 20 | |
| 21 | struct X |
| 22 | { |
| 23 | static int instances; |
| 24 | |
| 25 | X(): deleted_( false ) |
| 26 | { |
| 27 | ++instances; |
| 28 | } |
| 29 | |
| 30 | ~X() |
| 31 | { |
| 32 | BOOST_TEST( deleted_ ); |
| 33 | --instances; |
| 34 | } |
| 35 | |
| 36 | private: |
| 37 | |
| 38 | friend struct D; |
| 39 | |
| 40 | bool deleted_; |
| 41 | |
| 42 | X( X const & ); |
| 43 | X & operator=( X const & ); |
| 44 | }; |
| 45 | |
| 46 | int X::instances = 0; |
| 47 | |
| 48 | struct D |
| 49 | { |
| 50 | void operator()( X * px ) const |
| 51 | { |
| 52 | px->deleted_ = true; |
| 53 | delete px; |
| 54 | } |
| 55 | }; |
| 56 | |
| 57 | int main() |
| 58 | { |
| 59 | BOOST_TEST( X::instances == 0 ); |
| 60 | |
| 61 | boost::shared_ptr<void> pv( new X, D(), std::allocator<X>() ); |
| 62 | |
| 63 | BOOST_TEST( X::instances == 1 ); |
| 64 | |
| 65 | pv.reset(); |
| 66 | |
| 67 | BOOST_TEST( X::instances == 0 ); |
| 68 | |
| 69 | pv.reset( p: new X, d: D(), a: std::allocator<void>() ); |
| 70 | |
| 71 | BOOST_TEST( X::instances == 1 ); |
| 72 | |
| 73 | pv.reset(); |
| 74 | |
| 75 | BOOST_TEST( X::instances == 0 ); |
| 76 | |
| 77 | return boost::report_errors(); |
| 78 | } |
| 79 |