source: XIOS/dev/dev_olga/src/extern/boost/include/boost/numeric/ublas/traits/iterator_type.hpp @ 1022

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