3rdparty/boost/boost/smart_ptr/detail/local_sp_deleter.hpp

   1 #ifndef BOOST_SMART_PTR_DETAIL_LOCAL_SP_DELETER_HPP_INCLUDED
   2 #define BOOST_SMART_PTR_DETAIL_LOCAL_SP_DELETER_HPP_INCLUDED
   3
   4 // MS compatible compilers support #pragma once
   5
   6 #if defined(_MSC_VER) && (_MSC_VER >= 1020)
   7 # pragma once
   8 #endif
   9
  10 //  detail/local_sp_deleter.hpp
  11 //
  12 //  Copyright 2017 Peter Dimov
  13 //
  14 //  Distributed under the Boost Software License, Version 1.0. (See
  15 //  accompanying file LICENSE_1_0.txt or copy at
  16 //  http://www.boost.org/LICENSE_1_0.txt)
  17 //
  18 //  See http://www.boost.org/libs/smart_ptr/ for documentation.
  19
  20 #include <boost/smart_ptr/detail/local_counted_base.hpp>
  21 #include <boost/config.hpp>
  22
  23 namespace boost
  24 {
  25
  26 namespace detail
  27 {
  28
  29 template<class D> class local_sp_deleter: public local_counted_impl_em
  30 {
  31 private:
  32
  33     D d_;
  34
  35 public:
  36
  37     local_sp_deleter(): d_()
  38     {
  39     }
  40
  41     explicit local_sp_deleter( D const& d ) BOOST_SP_NOEXCEPT: d_( d )
  42     {
  43     }
  44
  45 #if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
  46
  47     explicit local_sp_deleter( D&& d ) BOOST_SP_NOEXCEPT: d_( std::move(d) )
  48     {
  49     }
  50
  51 #endif
  52
  53     D& deleter()
  54     {
  55         return d_;
  56     }
  57
  58     template<class Y> void operator()( Y* p ) BOOST_SP_NOEXCEPT
  59     {
  60         d_( p );
  61     }
  62
  63 #if !defined( BOOST_NO_CXX11_NULLPTR )
  64
  65     void operator()( boost::detail::sp_nullptr_t p ) BOOST_SP_NOEXCEPT
  66     {
  67         d_( p );
  68     }
  69
  70 #endif
  71 };
  72
  73 template<> class local_sp_deleter<void>
  74 {
  75 };
  76
  77 template<class D> D * get_local_deleter( local_sp_deleter<D> * p )
  78 {
  79     return &p->deleter();
  80 }
  81
  82 inline void * get_local_deleter( local_sp_deleter<void> * /*p*/ )
  83 {
  84     return 0;
  85 }
  86
  87 } // namespace detail
  88
  89 } // namespace boost
  90
  91 #endif  // #ifndef BOOST_SMART_PTR_DETAIL_LOCAL_SP_DELETER_HPP_INCLUDED