ceph/src/boost/libs/core/include/boost/core/noncopyable.hpp

   1 //  Boost noncopyable.hpp header file  --------------------------------------//
   2
   3 //  (C) Copyright Beman Dawes 1999-2003. Distributed under the Boost
   4 //  Software License, Version 1.0. (See accompanying file
   5 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7 //  See http://www.boost.org/libs/utility for documentation.
   8
   9 #ifndef BOOST_CORE_NONCOPYABLE_HPP
  10 #define BOOST_CORE_NONCOPYABLE_HPP
  11
  12 #include <boost/config.hpp>
  13
  14 namespace boost {
  15
  16 //  Private copy constructor and copy assignment ensure classes derived from
  17 //  class noncopyable cannot be copied.
  18
  19 //  Contributed by Dave Abrahams
  20
  21 namespace noncopyable_  // protection from unintended ADL
  22 {
  23   class noncopyable
  24   {
  25   protected:
  26 #if !defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) && !defined(BOOST_NO_CXX11_NON_PUBLIC_DEFAULTED_FUNCTIONS)
  27       BOOST_CONSTEXPR noncopyable() = default;
  28       ~noncopyable() = default;
  29 #else
  30       noncopyable() {}
  31       ~noncopyable() {}
  32 #endif
  33 #if !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS)
  34       noncopyable( const noncopyable& ) = delete;
  35       noncopyable& operator=( const noncopyable& ) = delete;
  36 #else
  37   private:  // emphasize the following members are private
  38       noncopyable( const noncopyable& );
  39       noncopyable& operator=( const noncopyable& );
  40 #endif
  41   };
  42 }
  43
  44 typedef noncopyable_::noncopyable noncopyable;
  45
  46 } // namespace boost
  47
  48 #endif  // BOOST_CORE_NONCOPYABLE_HPP