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annotate DEPENDENCIES/generic/include/boost/fusion/adapted/mpl/mpl_iterator.hpp @ 133:4acb5d8d80b6 tip

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Don't fail environmental check if README.md exists (but .txt and no-suffix don't)
author Chris Cannam
date Tue, 30 Jul 2019 12:25:44 +0100
parents c530137014c0
children
rev   line source
Chris@16 1 /*=============================================================================
Chris@16 2 Copyright (c) 2001-2011 Joel de Guzman
Chris@16 3
Chris@16 4 Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16 5 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16 6 ==============================================================================*/
Chris@16 7 #if !defined(FUSION_MPL_ITERATOR_05052005_0731)
Chris@16 8 #define FUSION_MPL_ITERATOR_05052005_0731
Chris@16 9
Chris@101 10 #include <boost/fusion/support/config.hpp>
Chris@16 11 #include <boost/fusion/support/detail/mpl_iterator_category.hpp>
Chris@16 12 #include <boost/fusion/iterator/iterator_facade.hpp>
Chris@16 13 #include <boost/type_traits/remove_const.hpp>
Chris@16 14 #include <boost/mpl/deref.hpp>
Chris@16 15 #include <boost/mpl/next.hpp>
Chris@16 16 #include <boost/mpl/prior.hpp>
Chris@16 17 #include <boost/mpl/advance.hpp>
Chris@16 18 #include <boost/mpl/distance.hpp>
Chris@16 19
Chris@16 20 namespace boost { namespace fusion
Chris@16 21 {
Chris@16 22 template <typename Iterator_>
Chris@16 23 struct mpl_iterator
Chris@16 24 : iterator_facade<
Chris@16 25 mpl_iterator<Iterator_>
Chris@16 26 , typename detail::mpl_iterator_category<typename Iterator_::category>::type
Chris@16 27 >
Chris@16 28 {
Chris@16 29 typedef typename remove_const<Iterator_>::type iterator_type;
Chris@16 30
Chris@16 31 template <typename Iterator>
Chris@16 32 struct value_of : mpl::deref<typename Iterator::iterator_type> {};
Chris@16 33
Chris@16 34 template <typename Iterator>
Chris@16 35 struct deref
Chris@16 36 {
Chris@16 37 typedef typename mpl::deref<
Chris@16 38 typename Iterator::iterator_type>::type
Chris@16 39 type;
Chris@16 40
Chris@101 41 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16 42 static type
Chris@16 43 call(Iterator)
Chris@16 44 {
Chris@16 45 return type();
Chris@16 46 }
Chris@16 47 };
Chris@16 48
Chris@16 49 template <typename Iterator>
Chris@16 50 struct next
Chris@16 51 {
Chris@16 52 typedef mpl_iterator<
Chris@16 53 typename mpl::next<typename Iterator::iterator_type>::type>
Chris@16 54 type;
Chris@16 55
Chris@101 56 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16 57 static type
Chris@16 58 call(Iterator)
Chris@16 59 {
Chris@16 60 return type();
Chris@16 61 }
Chris@16 62 };
Chris@16 63
Chris@16 64 template <typename Iterator>
Chris@16 65 struct prior
Chris@16 66 {
Chris@16 67 typedef mpl_iterator<
Chris@16 68 typename mpl::prior<typename Iterator::iterator_type>::type>
Chris@16 69 type;
Chris@16 70
Chris@101 71 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16 72 static type
Chris@16 73 call(Iterator)
Chris@16 74 {
Chris@16 75 return type();
Chris@16 76 }
Chris@16 77 };
Chris@16 78
Chris@16 79 template <typename Iterator, typename N>
Chris@16 80 struct advance
Chris@16 81 {
Chris@16 82 typedef mpl_iterator<
Chris@16 83 typename mpl::advance<typename Iterator::iterator_type, N>::type>
Chris@16 84 type;
Chris@16 85
Chris@101 86 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16 87 static type
Chris@16 88 call(Iterator const& /*i*/)
Chris@16 89 {
Chris@16 90 return type();
Chris@16 91 }
Chris@16 92 };
Chris@16 93
Chris@16 94 template <typename I1, typename I2>
Chris@16 95 struct distance :
Chris@16 96 mpl::distance<
Chris@16 97 typename I1::iterator_type
Chris@16 98 , typename I2::iterator_type>
Chris@16 99 {
Chris@16 100 typedef typename
Chris@16 101 mpl::distance<
Chris@16 102 typename I1::iterator_type
Chris@16 103 , typename I2::iterator_type
Chris@16 104 >::type
Chris@16 105 type;
Chris@16 106
Chris@101 107 BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16 108 static type
Chris@16 109 call(I1 const&, I2 const&)
Chris@16 110 {
Chris@16 111 return type();
Chris@16 112 }
Chris@16 113 };
Chris@16 114 };
Chris@16 115 }}
Chris@16 116
Chris@101 117 #ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408
Chris@101 118 namespace std
Chris@101 119 {
Chris@101 120 template <typename Iterator>
Chris@101 121 struct iterator_traits< ::boost::fusion::mpl_iterator<Iterator> >
Chris@101 122 { };
Chris@101 123 }
Chris@16 124 #endif
Chris@16 125
Chris@101 126 #endif
Chris@16 127
Chris@101 128