1//////////////////////////////////////////////////////////////////////////////
2//
3// (C) Copyright Ion Gaztanaga 2015-2016.
4// Distributed under the Boost Software License, Version 1.0.
5// (See accompanying file LICENSE_1_0.txt or copy at
6// http://www.boost.org/LICENSE_1_0.txt)
7//
8// See http://www.boost.org/libs/move for documentation.
9//
10//////////////////////////////////////////////////////////////////////////////
11
12//! \file
13
14#ifndef BOOST_MOVE_DETAIL_DESTRUCT_N_HPP
15#define BOOST_MOVE_DETAIL_DESTRUCT_N_HPP
16
17#ifndef BOOST_CONFIG_HPP
18# include <boost/config.hpp>
19#endif
20#
21#if defined(BOOST_HAS_PRAGMA_ONCE)
22# pragma once
23#endif
24
25#include <cstddef>
26
27namespace boost {
28namespace movelib{
29
30template<class T, class RandItUninit>
31class destruct_n
32{
33 public:
34 explicit destruct_n(RandItUninit raw)
35 : m_ptr(raw), m_size()
36 {}
37
38 void incr()
39 {
40 ++m_size;
41 }
42
43 void incr(std::size_t n)
44 {
45 m_size += n;
46 }
47
48 void release()
49 {
50 m_size = 0u;
51 }
52
53 ~destruct_n()
54 {
55 while(m_size--){
56 m_ptr[m_size].~T();
57 }
58 }
59 private:
60 RandItUninit m_ptr;
61 std::size_t m_size;
62};
63
64}} //namespace boost { namespace movelib{
65
66#endif //#ifndef BOOST_MOVE_DETAIL_DESTRUCT_N_HPP
67