ceph/src/boost/boost/smart_ptr/enable_shared_from.hpp

   1 #ifndef BOOST_SMART_PTR_ENABLE_SHARED_FROM_HPP_INCLUDED
   2 #define BOOST_SMART_PTR_ENABLE_SHARED_FROM_HPP_INCLUDED
   3
   4 //  enable_shared_from.hpp
   5 //
   6 //  Copyright 2019 Peter Dimov
   7 //
   8 //  Distributed under the Boost Software License, Version 1.0.
   9 //  See accompanying file LICENSE_1_0.txt or copy at
  10 //  http://www.boost.org/LICENSE_1_0.txt
  11 //
  12 //  See http://www.boost.org/libs/smart_ptr/ for documentation.
  13
  14 #include <boost/smart_ptr/enable_shared_from_this.hpp>
  15 #include <boost/smart_ptr/detail/sp_noexcept.hpp>
  16
  17 namespace boost
  18 {
  19
  20 class enable_shared_from: public enable_shared_from_this<enable_shared_from>
  21 {
  22 };
  23
  24
  25 template<class T> shared_ptr<T> shared_from( T * p )
  26 {
  27     return shared_ptr<T>( p->enable_shared_from::shared_from_this(), p );
  28 }
  29
  30 template<class T> weak_ptr<T> weak_from( T * p ) BOOST_SP_NOEXCEPT
  31 {
  32     return weak_ptr<T>( p->enable_shared_from::weak_from_this(), p );
  33 }
  34
  35 } // namespace boost
  36
  37 #endif  // #ifndef BOOST_SMART_PTR_ENABLE_SHARED_FROM_HPP_INCLUDED