deps/boost_1_63_0/boost/range/iterator.hpp

   1 // Boost.Range library
   2 //
   3 //  Copyright Thorsten Ottosen 2003-2004. 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/range/
   9 //
  10
  11 #ifndef BOOST_RANGE_ITERATOR_HPP
  12 #define BOOST_RANGE_ITERATOR_HPP
  13
  14 #if defined(_MSC_VER)
  15 # pragma once
  16 #endif
  17
  18 #include <boost/range/config.hpp>
  19 #include <boost/range/range_fwd.hpp>
  20 #include <boost/range/mutable_iterator.hpp>
  21 #include <boost/range/const_iterator.hpp>
  22 #include <boost/type_traits/is_const.hpp>
  23 #include <boost/type_traits/remove_const.hpp>
  24 #include <boost/mpl/eval_if.hpp>
  25
  26 namespace boost
  27 {
  28
  29 #if BOOST_WORKAROUND(BOOST_MSVC, == 1310)
  30
  31     namespace range_detail_vc7_1
  32     {
  33        template< typename C, typename Sig = void(C) >
  34        struct range_iterator
  35        {
  36            typedef BOOST_RANGE_DEDUCED_TYPENAME
  37                mpl::eval_if_c< is_const<C>::value,
  38                                range_const_iterator< typename remove_const<C>::type >,
  39                                range_mutable_iterator<C> >::type type;
  40        };
  41
  42        template< typename C, typename T >
  43        struct range_iterator< C, void(T[]) >
  44        {
  45            typedef T* type;
  46        };
  47     }
  48
  49     template< typename C, typename Enabler=void >
  50     struct range_iterator
  51     {
  52
  53         typedef BOOST_RANGE_DEDUCED_TYPENAME
  54                range_detail_vc7_1::range_iterator<C>::type type;
  55
  56     };
  57
  58 #else
  59
  60     template< typename C, typename Enabler=void >
  61     struct range_iterator
  62       : mpl::if_c<
  63             is_const<typename remove_reference<C>::type>::value,
  64             range_const_iterator<typename remove_const<typename remove_reference<C>::type>::type>,
  65             range_mutable_iterator<typename remove_reference<C>::type>
  66         >::type
  67     {
  68     };
  69
  70 #endif
  71
  72 } // namespace boost
  73
  74 #endif