1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
#include <boost/config.hpp>
// shared_ptr_alloc11_test.cpp
//
// Test the allocator constructor with a C++11 minimal allocator
//
// Copyright (c) 2005, 2014 Peter Dimov
//
// Distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
#include <boost/core/lightweight_test.hpp>
#include <boost/shared_ptr.hpp>
#include <memory>
#include <cstddef>
#if !defined( BOOST_NO_CXX11_ALLOCATOR )
template< class T > class cxx11_allocator
{
public:
typedef T value_type;
cxx11_allocator()
{
}
template< class Y > cxx11_allocator( cxx11_allocator<Y> const & )
{
}
T * allocate( std::size_t n )
{
return static_cast< T* >( ::operator new( n * sizeof( T ) ) );
}
void deallocate( T * p, std::size_t n )
{
::operator delete( p );
}
};
//
struct D;
struct X
{
static int instances;
X(): deleted_( false )
{
++instances;
}
~X()
{
BOOST_TEST( deleted_ );
--instances;
}
private:
friend struct D;
bool deleted_;
X( X const & );
X & operator=( X const & );
};
int X::instances = 0;
struct D
{
void operator()( X * px ) const
{
px->deleted_ = true;
delete px;
}
};
int main()
{
BOOST_TEST( X::instances == 0 );
boost::shared_ptr<void> pv( new X, D(), cxx11_allocator<X>() );
BOOST_TEST( X::instances == 1 );
pv.reset();
BOOST_TEST( X::instances == 0 );
pv.reset( new X, D(), cxx11_allocator<void>() );
BOOST_TEST( X::instances == 1 );
pv.reset();
BOOST_TEST( X::instances == 0 );
return boost::report_errors();
}
#else // !defined( BOOST_NO_CXX11_ALLOCATOR )
int main()
{
return 0;
}
#endif
|
