ceph/src/boost/boost/optional/optional_fwd.hpp

   1 // Copyright (C) 2003, 2008 Fernando Luis Cacciola Carballal.
   2 // Copyright (C) 2016 Andrzej Krzemienski
   3 //
   4 // Use, modification, and distribution is subject to the Boost Software
   5 // License, Version 1.0. (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/optional for documentation.
   9 //
  10 // You are welcome to contact the author at:
  11 //  fernando_cacciola@hotmail.com
  12 //
  13 // Revisions:
  14 // 10 May 2008 (added swap related forward declaration) Niels Dekker
  15 //
  16 #ifndef BOOST_OPTIONAL_OPTIONAL_FWD_FLC_19NOV2002_HPP
  17 #define BOOST_OPTIONAL_OPTIONAL_FWD_FLC_19NOV2002_HPP
  18
  19 #include <boost/config.hpp>
  20
  21 namespace boost {
  22
  23 template<class T> class optional ;
  24
  25 // This forward is needed to refer to namespace scope swap from the member swap
  26 template<class T> void swap ( optional<T>& , optional<T>& ) ;
  27
  28 template<class T> struct optional_swap_should_use_default_constructor ;
  29
  30 #ifndef BOOST_OPTIONAL_CONFIG_DONT_SPECIALIZE_OPTIONAL_REFS
  31
  32 template<class T> class optional<T&> ;
  33
  34 template<class T> void swap ( optional<T&>& , optional<T&>& ) BOOST_NOEXCEPT;
  35
  36 #endif
  37
  38 } // namespace boost
  39
  40 #endif
  41