[1022] | 1 | /** |
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| 2 | * -*- c++ -*- |
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| 3 | * |
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| 4 | * \file iterator_type.hpp |
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| 5 | * |
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| 6 | * \brief Iterator to a given container type. |
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| 7 | * |
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| 8 | * Copyright (c) 2009, Marco Guazzone |
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| 9 | * |
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| 10 | * Distributed under the Boost Software License, Version 1.0. (See |
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| 11 | * accompanying file LICENSE_1_0.txt or copy at |
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| 12 | * http://www.boost.org/LICENSE_1_0.txt) |
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| 13 | * |
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| 14 | * \author Marco Guazzone, marco.guazzone@gmail.com |
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| 15 | */ |
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| 16 | |
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| 17 | |
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| 18 | #ifndef BOOST_NUMERIC_UBLAS_TRAITS_ITERATOR_TYPE_HPP |
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| 19 | #define BOOST_NUMERIC_UBLAS_TRAITS_ITERATOR_TYPE_HPP |
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| 20 | |
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| 21 | |
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| 22 | #include <boost/numeric/ublas/fwd.hpp> |
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| 23 | #include <boost/numeric/ublas/traits.hpp> |
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| 24 | #include <boost/numeric/ublas/tags.hpp> |
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| 25 | |
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| 26 | |
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| 27 | namespace boost { namespace numeric { namespace ublas { |
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| 28 | |
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| 29 | namespace detail { |
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| 30 | |
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| 31 | /** |
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| 32 | * \brief Auxiliary class for retrieving the iterator to the given |
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| 33 | * matrix expression according its orientation and to the given dimension tag. |
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| 34 | * \tparam MatrixT A model of MatrixExpression. |
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| 35 | * \tparam TagT A dimension tag type (e.g., tag::major). |
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| 36 | * \tparam OrientationT An orientation category type (e.g., row_major_tag). |
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| 37 | */ |
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| 38 | template <typename MatrixT, typename TagT, typename OrientationT> |
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| 39 | struct iterator_type_impl; |
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| 40 | |
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| 41 | |
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| 42 | /// \brief Specialization of \c iterator_type_impl for row-major oriented |
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| 43 | /// matrices and over the major dimension. |
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| 44 | template <typename MatrixT> |
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| 45 | struct iterator_type_impl<MatrixT,tag::major,row_major_tag> |
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| 46 | { |
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| 47 | typedef typename matrix_traits<MatrixT>::iterator1 type; |
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| 48 | }; |
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| 49 | |
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| 50 | |
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| 51 | /// \brief Specialization of \c iterator_type_impl for column-major oriented |
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| 52 | /// matrices and over the major dimension. |
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| 53 | template <typename MatrixT> |
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| 54 | struct iterator_type_impl<MatrixT,tag::major,column_major_tag> |
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| 55 | { |
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| 56 | typedef typename matrix_traits<MatrixT>::iterator2 type; |
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| 57 | }; |
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| 58 | |
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| 59 | |
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| 60 | /// \brief Specialization of \c iterator_type_impl for row-major oriented |
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| 61 | /// matrices and over the minor dimension. |
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| 62 | template <typename MatrixT> |
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| 63 | struct iterator_type_impl<MatrixT,tag::minor,row_major_tag> |
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| 64 | { |
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| 65 | typedef typename matrix_traits<MatrixT>::iterator2 type; |
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| 66 | }; |
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| 67 | |
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| 68 | |
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| 69 | /// \brief Specialization of \c iterator_type_impl for column-major oriented |
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| 70 | /// matrices and over the minor dimension. |
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| 71 | template <typename MatrixT> |
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| 72 | struct iterator_type_impl<MatrixT,tag::minor,column_major_tag> |
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| 73 | { |
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| 74 | typedef typename matrix_traits<MatrixT>::iterator1 type; |
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| 75 | }; |
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| 76 | |
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| 77 | } // Namespace detail |
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| 78 | |
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| 79 | |
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| 80 | /** |
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| 81 | * \brief A iterator for the given container type over the given dimension. |
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| 82 | * \tparam ContainerT A container expression type. |
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| 83 | * \tparam TagT A dimension tag type (e.g., tag::major). |
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| 84 | */ |
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| 85 | template <typename ContainerT, typename TagT=void> |
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| 86 | struct iterator_type; |
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| 87 | |
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| 88 | |
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| 89 | /** |
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| 90 | * \brief Specialization of \c iterator_type for vector expressions. |
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| 91 | * \tparam VectorT A model of VectorExpression type. |
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| 92 | */ |
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| 93 | template <typename VectorT> |
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| 94 | struct iterator_type<VectorT, void> |
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| 95 | { |
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| 96 | typedef typename vector_traits<VectorT>::iterator type; |
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| 97 | }; |
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| 98 | |
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| 99 | |
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| 100 | /** |
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| 101 | * \brief Specialization of \c iterator_type for matrix expressions and |
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| 102 | * over the major dimension. |
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| 103 | * \tparam MatrixT A model of MatrixExpression type. |
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| 104 | */ |
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| 105 | template <typename MatrixT> |
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| 106 | struct iterator_type<MatrixT,tag::major> |
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| 107 | { |
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| 108 | typedef typename detail::iterator_type_impl<MatrixT,tag::major,typename matrix_traits<MatrixT>::orientation_category>::type type; |
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| 109 | }; |
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| 110 | |
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| 111 | |
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| 112 | /** |
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| 113 | * \brief Specialization of \c iterator_type for matrix expressions and |
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| 114 | * over the minor dimension. |
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| 115 | * \tparam MatrixT A model of MatrixExpression type. |
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| 116 | */ |
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| 117 | template <typename MatrixT> |
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| 118 | struct iterator_type<MatrixT,tag::minor> |
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| 119 | { |
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| 120 | typedef typename detail::iterator_type_impl<MatrixT,tag::minor,typename matrix_traits<MatrixT>::orientation_category>::type type; |
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| 121 | }; |
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| 122 | |
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| 123 | }}} // Namespace boost::numeric::ublas |
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| 124 | |
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| 125 | |
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| 126 | #endif // BOOST_NUMERIC_UBLAS_TRAITS_ITERATOR_TYPE_HPP |
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