ceph/src/boost/boost/poly_collection/any_collection.hpp

   1 /* Copyright 2016-2017 Joaquin M Lopez Munoz.
   2  * Distributed under the Boost Software License, Version 1.0.
   3  * (See accompanying file LICENSE_1_0.txt or copy at
   4  * http://www.boost.org/LICENSE_1_0.txt)
   5  *
   6  * See http://www.boost.org/libs/poly_collection for library home page.
   7  */
   8
   9 #ifndef BOOST_POLY_COLLECTION_ANY_COLLECTION_HPP
  10 #define BOOST_POLY_COLLECTION_ANY_COLLECTION_HPP
  11
  12 #if defined(_MSC_VER)
  13 #pragma once
  14 #endif
  15
  16 #include <boost/poly_collection/any_collection_fwd.hpp>
  17 #include <boost/poly_collection/detail/any_model.hpp>
  18 #include <boost/poly_collection/detail/poly_collection.hpp>
  19 #include <utility>
  20
  21 namespace boost{
  22
  23 namespace poly_collection{
  24
  25 template<typename Concept,typename Allocator>
  26 class any_collection:
  27  public common_impl::poly_collection<detail::any_model<Concept>,Allocator>
  28 {
  29   using base_type=common_impl::poly_collection<
  30     detail::any_model<Concept>,Allocator>;
  31
  32   base_type&       base()noexcept{return *this;}
  33   const base_type& base()const noexcept{return *this;}
  34
  35 public:
  36   using base_type::base_type;
  37
  38   any_collection()=default;
  39   any_collection(const any_collection& x)=default;
  40   any_collection(any_collection&& x)=default;
  41   any_collection& operator=(const any_collection& x)=default;
  42   any_collection& operator=(any_collection&& x)=default;
  43
  44   template<typename C,typename A>
  45   friend bool operator==(
  46     const any_collection<C,A>&,const any_collection<C,A>&);
  47 };
  48
  49 template<typename Concept,typename Allocator>
  50 bool operator==(
  51   const any_collection<Concept,Allocator>& x,
  52   const any_collection<Concept,Allocator>& y)
  53 {
  54   return x.base()==y.base();
  55 }
  56
  57 template<typename Concept,typename Allocator>
  58 bool operator!=(
  59   const any_collection<Concept,Allocator>& x,
  60   const any_collection<Concept,Allocator>& y)
  61 {
  62  return !(x==y);
  63 }
  64
  65 template<typename Concept,typename Allocator>
  66 void swap(
  67   any_collection<Concept,Allocator>& x,any_collection<Concept,Allocator>& y)
  68 {
  69   x.swap(y);
  70 }
  71
  72 } /* namespace  */
  73
  74 using poly_collection::any_collection;
  75
  76 } /* namespace boost */
  77
  78 #endif