ceph/src/boost/libs/assign/include/boost/assign/ptr_map_inserter.hpp

   1 // Boost.Assign library
   2 //
   3 //  Copyright Thorsten Ottosen 2006. Use, modification and
   4 //  distribution is subject to the Boost Software License, Version
   5 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
   6 //  http://www.boost.org/LICENSE_1_0.txt)
   7 //
   8 // For more information, see http://www.boost.org/libs/assign/
   9 //
  10
  11 #ifndef BOOST_ASSIGN_PTR_CONTAINER_PTR_MAP_INSERTER_HPP
  12 #define BOOST_ASSIGN_PTR_CONTAINER_PTR_MAP_INSERTER_HPP
  13
  14 #if defined(_MSC_VER)
  15 # pragma once
  16 #endif
  17
  18 #include <boost/assign/list_inserter.hpp>
  19 #include <boost/type_traits/remove_reference.hpp>
  20 #include <boost/type_traits/remove_pointer.hpp>
  21
  22 namespace boost
  23 {
  24
  25 namespace assign
  26 {
  27     template< class PtrMap, class Obj >
  28     class ptr_map_inserter
  29     {
  30         typedef BOOST_DEDUCED_TYPENAME
  31                 remove_pointer< BOOST_DEDUCED_TYPENAME
  32                        remove_reference<Obj>::type >::type
  33            obj_type;
  34         typedef BOOST_DEDUCED_TYPENAME PtrMap::key_type
  35            key_type;
  36
  37     public:
  38
  39         ptr_map_inserter( PtrMap& m ) : m_( m )
  40         {}
  41
  42         template< class Key >
  43         ptr_map_inserter& operator()( const Key& t )
  44         {
  45             key_type k(t);
  46             m_.insert( k, new obj_type );
  47             return *this;
  48         }
  49
  50 #ifndef BOOST_ASSIGN_MAX_PARAMS // use user's value
  51 #define BOOST_ASSIGN_MAX_PARAMS 6
  52 #endif
  53 #define BOOST_ASSIGN_MAX_PARAMETERS (BOOST_ASSIGN_MAX_PARAMS - 1)
  54 #define BOOST_ASSIGN_PARAMS1(n) BOOST_PP_ENUM_PARAMS(n, class T)
  55 #define BOOST_ASSIGN_PARAMS2(n) BOOST_PP_ENUM_BINARY_PARAMS(n, T, const& t)
  56 #define BOOST_ASSIGN_PARAMS3(n) BOOST_PP_ENUM_PARAMS(n, t)
  57
  58 #define BOOST_PP_LOCAL_LIMITS (1, BOOST_ASSIGN_MAX_PARAMETERS)
  59 #define BOOST_PP_LOCAL_MACRO(n) \
  60     template< class T, BOOST_ASSIGN_PARAMS1(n) > \
  61     ptr_map_inserter& operator()( const T& t, BOOST_ASSIGN_PARAMS2(n) ) \
  62     { \
  63         key_type k(t); \
  64         m_.insert( k, new obj_type( BOOST_ASSIGN_PARAMS3(n) ) ); \
  65         return *this; \
  66     } \
  67     /**/
  68
  69 #include BOOST_PP_LOCAL_ITERATE()
  70
  71     private:
  72
  73         ptr_map_inserter& operator=( const ptr_map_inserter& );
  74         PtrMap& m_;
  75     };
  76
  77     template< class PtrMap >
  78     inline ptr_map_inserter< PtrMap, typename PtrMap::mapped_reference >
  79     ptr_map_insert( PtrMap& m )
  80     {
  81         return ptr_map_inserter< PtrMap, typename PtrMap::mapped_reference >( m );
  82     }
  83
  84 #ifndef BOOST_NO_FUNCTION_TEMPLATE_ORDERING
  85
  86     template< class T, class PtrMap >
  87     inline ptr_map_inserter< PtrMap, T >
  88     ptr_map_insert( PtrMap& m )
  89     {
  90         return ptr_map_inserter< PtrMap, T >( m );
  91     }
  92
  93 #endif
  94
  95 } // namespace 'assign'
  96 } // namespace 'boost'
  97
  98 #undef BOOST_ASSIGN_PARAMS1
  99 #undef BOOST_ASSIGN_PARAMS2
 100 #undef BOOST_ASSIGN_PARAMS3
 101 #undef BOOST_ASSIGN_MAX_PARAMETERS
 102
 103 #endif