[857] | 1 | //
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| 2 | // Copyright (c) 2000-2002
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| 3 | // Joerg Walter, Mathias Koch
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| 4 | //
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| 5 | // Permission to use, copy, modify, distribute and sell this software
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| 6 | // and its documentation for any purpose is hereby granted without fee,
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| 7 | // provided that the above copyright notice appear in all copies and
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| 8 | // that both that copyright notice and this permission notice appear
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| 9 | // in supporting documentation. The authors make no representations
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| 10 | // about the suitability of this software for any purpose.
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| 11 | // It is provided "as is" without express or implied warranty.
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| 12 | //
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| 13 | // The authors gratefully acknowledge the support of
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| 14 | // GeNeSys mbH & Co. KG in producing this work.
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| 15 | //
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| 16 |
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| 17 | #ifndef _BOOST_UBLAS_VECTOR_PROXY_
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| 18 | #define _BOOST_UBLAS_VECTOR_PROXY_
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| 19 |
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| 20 | #include <boost/numeric/ublas/vector_expression.hpp>
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| 21 | #include <boost/numeric/ublas/detail/vector_assign.hpp>
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| 22 | #include <boost/numeric/ublas/detail/temporary.hpp>
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| 23 |
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| 24 | // Iterators based on ideas of Jeremy Siek
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| 25 |
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| 26 | namespace boost { namespace numeric { namespace ublas {
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| 27 |
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| 28 | // Vector based range class
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| 29 | template<class V>
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| 30 | class vector_range:
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| 31 | public vector_expression<vector_range<V> > {
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| 32 |
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| 33 | typedef vector_range<V> self_type;
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| 34 | public:
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| 35 | #ifdef BOOST_UBLAS_ENABLE_PROXY_SHORTCUTS
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| 36 | using vector_expression<self_type>::operator ();
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| 37 | #endif
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| 38 | typedef const V const_vector_type;
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| 39 | typedef V vector_type;
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| 40 | typedef typename V::size_type size_type;
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| 41 | typedef typename V::difference_type difference_type;
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| 42 | typedef typename V::value_type value_type;
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| 43 | typedef typename V::const_reference const_reference;
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| 44 | typedef typename boost::mpl::if_<boost::is_const<V>,
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| 45 | typename V::const_reference,
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| 46 | typename V::reference>::type reference;
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| 47 | typedef typename boost::mpl::if_<boost::is_const<V>,
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| 48 | typename V::const_closure_type,
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| 49 | typename V::closure_type>::type vector_closure_type;
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| 50 | typedef basic_range<size_type, difference_type> range_type;
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| 51 | typedef const self_type const_closure_type;
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| 52 | typedef self_type closure_type;
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| 53 | typedef typename storage_restrict_traits<typename V::storage_category,
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| 54 | dense_proxy_tag>::storage_category storage_category;
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| 55 |
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| 56 | // Construction and destruction
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| 57 | BOOST_UBLAS_INLINE
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| 58 | vector_range (vector_type &data, const range_type &r):
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| 59 | data_ (data), r_ (r.preprocess (data.size ())) {
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| 60 | // Early checking of preconditions here.
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| 61 | // BOOST_UBLAS_CHECK (r_.start () <= data_.size () &&
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| 62 | // r_.start () + r_.size () <= data_.size (), bad_index ());
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| 63 | }
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| 64 | BOOST_UBLAS_INLINE
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| 65 | vector_range (const vector_closure_type &data, const range_type &r, bool):
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| 66 | data_ (data), r_ (r.preprocess (data.size ())) {
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| 67 | // Early checking of preconditions here.
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| 68 | // BOOST_UBLAS_CHECK (r_.start () <= data_.size () &&
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| 69 | // r_.start () + r_.size () <= data_.size (), bad_index ());
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| 70 | }
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| 71 |
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| 72 | // Accessors
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| 73 | BOOST_UBLAS_INLINE
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| 74 | size_type start () const {
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| 75 | return r_.start ();
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| 76 | }
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| 77 | BOOST_UBLAS_INLINE
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| 78 | size_type size () const {
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| 79 | return r_.size ();
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| 80 | }
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| 81 |
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| 82 | // Storage accessors
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| 83 | BOOST_UBLAS_INLINE
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| 84 | const vector_closure_type &data () const {
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| 85 | return data_;
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| 86 | }
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| 87 | BOOST_UBLAS_INLINE
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| 88 | vector_closure_type &data () {
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| 89 | return data_;
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| 90 | }
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| 91 |
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| 92 | // Element access
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| 93 | #ifndef BOOST_UBLAS_PROXY_CONST_MEMBER
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| 94 | BOOST_UBLAS_INLINE
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| 95 | const_reference operator () (size_type i) const {
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| 96 | return data_ (r_ (i));
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| 97 | }
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| 98 | BOOST_UBLAS_INLINE
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| 99 | reference operator () (size_type i) {
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| 100 | return data_ (r_ (i));
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| 101 | }
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| 102 |
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| 103 | BOOST_UBLAS_INLINE
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| 104 | const_reference operator [] (size_type i) const {
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| 105 | return (*this) (i);
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| 106 | }
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| 107 | BOOST_UBLAS_INLINE
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| 108 | reference operator [] (size_type i) {
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| 109 | return (*this) (i);
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| 110 | }
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| 111 | #else
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| 112 | BOOST_UBLAS_INLINE
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| 113 | reference operator () (size_type i) const {
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| 114 | return data_ (r_ (i));
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| 115 | }
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| 116 |
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| 117 | BOOST_UBLAS_INLINE
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| 118 | reference operator [] (size_type i) const {
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| 119 | return (*this) (i);
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| 120 | }
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| 121 | #endif
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| 122 |
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| 123 | // ISSUE can this be done in free project function?
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| 124 | // Although a const function can create a non-const proxy to a non-const object
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| 125 | // Critical is that vector_type and data_ (vector_closure_type) are const correct
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| 126 | BOOST_UBLAS_INLINE
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| 127 | vector_range<vector_type> project (const range_type &r) const {
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| 128 | return vector_range<vector_type> (data_, r_.compose (r.preprocess (data_.size ())), false);
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| 129 | }
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| 130 |
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| 131 | // Assignment
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| 132 | BOOST_UBLAS_INLINE
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| 133 | vector_range &operator = (const vector_range &vr) {
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| 134 | // ISSUE need a temporary, proxy can be overlaping alias
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| 135 | vector_assign<scalar_assign> (*this, typename vector_temporary_traits<V>::type (vr));
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| 136 | return *this;
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| 137 | }
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| 138 | BOOST_UBLAS_INLINE
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| 139 | vector_range &assign_temporary (vector_range &vr) {
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| 140 | // assign elements, proxied container remains the same
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| 141 | vector_assign<scalar_assign> (*this, vr);
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| 142 | return *this;
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| 143 | }
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| 144 | template<class AE>
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| 145 | BOOST_UBLAS_INLINE
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| 146 | vector_range &operator = (const vector_expression<AE> &ae) {
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| 147 | vector_assign<scalar_assign> (*this, typename vector_temporary_traits<V>::type (ae));
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| 148 | return *this;
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| 149 | }
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| 150 | template<class AE>
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| 151 | BOOST_UBLAS_INLINE
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| 152 | vector_range &assign (const vector_expression<AE> &ae) {
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| 153 | vector_assign<scalar_assign> (*this, ae);
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| 154 | return *this;
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| 155 | }
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| 156 | template<class AE>
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| 157 | BOOST_UBLAS_INLINE
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| 158 | vector_range &operator += (const vector_expression<AE> &ae) {
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| 159 | vector_assign<scalar_assign> (*this, typename vector_temporary_traits<V>::type (*this + ae));
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| 160 | return *this;
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| 161 | }
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| 162 | template<class AE>
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| 163 | BOOST_UBLAS_INLINE
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| 164 | vector_range &plus_assign (const vector_expression<AE> &ae) {
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| 165 | vector_assign<scalar_plus_assign> (*this, ae);
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| 166 | return *this;
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| 167 | }
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| 168 | template<class AE>
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| 169 | BOOST_UBLAS_INLINE
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| 170 | vector_range &operator -= (const vector_expression<AE> &ae) {
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| 171 | vector_assign<scalar_assign> (*this, typename vector_temporary_traits<V>::type (*this - ae));
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| 172 | return *this;
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| 173 | }
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| 174 | template<class AE>
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| 175 | BOOST_UBLAS_INLINE
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| 176 | vector_range &minus_assign (const vector_expression<AE> &ae) {
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| 177 | vector_assign<scalar_minus_assign> (*this, ae);
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| 178 | return *this;
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| 179 | }
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| 180 | template<class AT>
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| 181 | BOOST_UBLAS_INLINE
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| 182 | vector_range &operator *= (const AT &at) {
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| 183 | vector_assign_scalar<scalar_multiplies_assign> (*this, at);
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| 184 | return *this;
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| 185 | }
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| 186 | template<class AT>
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| 187 | BOOST_UBLAS_INLINE
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| 188 | vector_range &operator /= (const AT &at) {
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| 189 | vector_assign_scalar<scalar_divides_assign> (*this, at);
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| 190 | return *this;
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| 191 | }
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| 192 |
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| 193 | // Closure comparison
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| 194 | BOOST_UBLAS_INLINE
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| 195 | bool same_closure (const vector_range &vr) const {
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| 196 | return (*this).data_.same_closure (vr.data_);
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| 197 | }
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| 198 |
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| 199 | // Comparison
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| 200 | BOOST_UBLAS_INLINE
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| 201 | bool operator == (const vector_range &vr) const {
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| 202 | return (*this).data_ == vr.data_ && r_ == vr.r_;
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| 203 | }
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| 204 |
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| 205 | // Swapping
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| 206 | BOOST_UBLAS_INLINE
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| 207 | void swap (vector_range vr) {
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| 208 | if (this != &vr) {
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| 209 | BOOST_UBLAS_CHECK (size () == vr.size (), bad_size ());
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| 210 | // Sparse ranges may be nonconformant now.
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| 211 | // std::swap_ranges (begin (), end (), vr.begin ());
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| 212 | vector_swap<scalar_swap> (*this, vr);
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| 213 | }
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| 214 | }
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| 215 | BOOST_UBLAS_INLINE
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| 216 | friend void swap (vector_range vr1, vector_range vr2) {
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| 217 | vr1.swap (vr2);
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| 218 | }
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| 219 |
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| 220 | // Iterator types
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| 221 | private:
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| 222 | typedef typename V::const_iterator const_subiterator_type;
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| 223 | typedef typename boost::mpl::if_<boost::is_const<V>,
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| 224 | typename V::const_iterator,
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| 225 | typename V::iterator>::type subiterator_type;
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| 226 |
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| 227 | public:
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| 228 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
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| 229 | typedef indexed_iterator<vector_range<vector_type>,
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| 230 | typename subiterator_type::iterator_category> iterator;
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| 231 | typedef indexed_const_iterator<vector_range<vector_type>,
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| 232 | typename const_subiterator_type::iterator_category> const_iterator;
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| 233 | #else
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| 234 | class const_iterator;
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| 235 | class iterator;
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| 236 | #endif
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| 237 |
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| 238 | // Element lookup
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| 239 | BOOST_UBLAS_INLINE
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| 240 | const_iterator find (size_type i) const {
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| 241 | const_subiterator_type it (data_.find (start () + i));
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| 242 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
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| 243 | return const_iterator (*this, it.index ());
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| 244 | #else
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| 245 | return const_iterator (*this, it);
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| 246 | #endif
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| 247 | }
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| 248 | BOOST_UBLAS_INLINE
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| 249 | iterator find (size_type i) {
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| 250 | subiterator_type it (data_.find (start () + i));
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| 251 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
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| 252 | return iterator (*this, it.index ());
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| 253 | #else
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| 254 | return iterator (*this, it);
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| 255 | #endif
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| 256 | }
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| 257 |
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| 258 | #ifndef BOOST_UBLAS_USE_INDEXED_ITERATOR
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| 259 | class const_iterator:
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| 260 | public container_const_reference<vector_range>,
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| 261 | public iterator_base_traits<typename const_subiterator_type::iterator_category>::template
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| 262 | iterator_base<const_iterator, value_type>::type {
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| 263 | public:
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| 264 | typedef typename const_subiterator_type::difference_type difference_type;
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| 265 | typedef typename const_subiterator_type::value_type value_type;
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| 266 | typedef typename const_subiterator_type::reference reference;
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| 267 | typedef typename const_subiterator_type::pointer pointer;
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| 268 |
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| 269 | // Construction and destruction
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| 270 | BOOST_UBLAS_INLINE
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| 271 | const_iterator ():
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| 272 | container_const_reference<self_type> (), it_ () {}
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| 273 | BOOST_UBLAS_INLINE
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| 274 | const_iterator (const self_type &vr, const const_subiterator_type &it):
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| 275 | container_const_reference<self_type> (vr), it_ (it) {}
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| 276 | BOOST_UBLAS_INLINE
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| 277 | const_iterator (const iterator &it):
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| 278 | container_const_reference<self_type> (it ()), it_ (it.it_) {}
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| 279 |
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| 280 | // Arithmetic
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| 281 | BOOST_UBLAS_INLINE
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| 282 | const_iterator &operator ++ () {
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| 283 | ++ it_;
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| 284 | return *this;
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| 285 | }
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| 286 | BOOST_UBLAS_INLINE
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| 287 | const_iterator &operator -- () {
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| 288 | -- it_;
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| 289 | return *this;
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| 290 | }
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| 291 | BOOST_UBLAS_INLINE
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| 292 | const_iterator &operator += (difference_type n) {
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| 293 | it_ += n;
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| 294 | return *this;
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| 295 | }
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| 296 | BOOST_UBLAS_INLINE
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| 297 | const_iterator &operator -= (difference_type n) {
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| 298 | it_ -= n;
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| 299 | return *this;
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| 300 | }
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| 301 | BOOST_UBLAS_INLINE
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| 302 | difference_type operator - (const const_iterator &it) const {
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| 303 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
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| 304 | return it_ - it.it_;
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| 305 | }
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| 306 |
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| 307 | // Dereference
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| 308 | BOOST_UBLAS_INLINE
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| 309 | const_reference operator * () const {
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| 310 | BOOST_UBLAS_CHECK (index () < (*this) ().size (), bad_index ());
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| 311 | return *it_;
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| 312 | }
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| 313 |
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| 314 | // Index
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| 315 | BOOST_UBLAS_INLINE
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| 316 | size_type index () const {
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| 317 | return it_.index () - (*this) ().start ();
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| 318 | }
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| 319 |
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| 320 | // Assignment
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| 321 | BOOST_UBLAS_INLINE
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| 322 | const_iterator &operator = (const const_iterator &it) {
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| 323 | container_const_reference<self_type>::assign (&it ());
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| 324 | it_ = it.it_;
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| 325 | return *this;
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| 326 | }
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| 327 |
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| 328 | // Comparison
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| 329 | BOOST_UBLAS_INLINE
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| 330 | bool operator == (const const_iterator &it) const {
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| 331 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
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| 332 | return it_ == it.it_;
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| 333 | }
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| 334 | BOOST_UBLAS_INLINE
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| 335 | bool operator < (const const_iterator &it) const {
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| 336 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
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| 337 | return it_ < it.it_;
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| 338 | }
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| 339 |
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| 340 | private:
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| 341 | const_subiterator_type it_;
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| 342 | };
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| 343 | #endif
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| 344 |
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| 345 | BOOST_UBLAS_INLINE
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| 346 | const_iterator begin () const {
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| 347 | return find (0);
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| 348 | }
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| 349 | BOOST_UBLAS_INLINE
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| 350 | const_iterator end () const {
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| 351 | return find (size ());
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| 352 | }
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| 353 |
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| 354 | #ifndef BOOST_UBLAS_USE_INDEXED_ITERATOR
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| 355 | class iterator:
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| 356 | public container_reference<vector_range>,
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| 357 | public iterator_base_traits<typename subiterator_type::iterator_category>::template
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| 358 | iterator_base<iterator, value_type>::type {
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| 359 | public:
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| 360 | typedef typename subiterator_type::difference_type difference_type;
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| 361 | typedef typename subiterator_type::value_type value_type;
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| 362 | typedef typename subiterator_type::reference reference;
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| 363 | typedef typename subiterator_type::pointer pointer;
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| 364 |
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| 365 | // Construction and destruction
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| 366 | BOOST_UBLAS_INLINE
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| 367 | iterator ():
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| 368 | container_reference<self_type> (), it_ () {}
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| 369 | BOOST_UBLAS_INLINE
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| 370 | iterator (self_type &vr, const subiterator_type &it):
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| 371 | container_reference<self_type> (vr), it_ (it) {}
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| 372 |
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| 373 | // Arithmetic
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| 374 | BOOST_UBLAS_INLINE
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| 375 | iterator &operator ++ () {
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| 376 | ++ it_;
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| 377 | return *this;
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| 378 | }
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| 379 | BOOST_UBLAS_INLINE
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| 380 | iterator &operator -- () {
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| 381 | -- it_;
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| 382 | return *this;
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| 383 | }
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| 384 | BOOST_UBLAS_INLINE
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| 385 | iterator &operator += (difference_type n) {
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| 386 | it_ += n;
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| 387 | return *this;
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| 388 | }
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| 389 | BOOST_UBLAS_INLINE
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| 390 | iterator &operator -= (difference_type n) {
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| 391 | it_ -= n;
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| 392 | return *this;
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| 393 | }
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| 394 | BOOST_UBLAS_INLINE
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| 395 | difference_type operator - (const iterator &it) const {
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| 396 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
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| 397 | return it_ - it.it_;
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| 398 | }
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| 399 |
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| 400 | // Dereference
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| 401 | BOOST_UBLAS_INLINE
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| 402 | reference operator * () const {
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| 403 | BOOST_UBLAS_CHECK (index () < (*this) ().size (), bad_index ());
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| 404 | return *it_;
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| 405 | }
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| 406 |
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| 407 | // Index
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| 408 | BOOST_UBLAS_INLINE
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| 409 | size_type index () const {
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| 410 | return it_.index () - (*this) ().start ();
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| 411 | }
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| 412 |
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| 413 | // Assignment
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| 414 | BOOST_UBLAS_INLINE
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| 415 | iterator &operator = (const iterator &it) {
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| 416 | container_reference<self_type>::assign (&it ());
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| 417 | it_ = it.it_;
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| 418 | return *this;
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| 419 | }
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| 420 |
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| 421 | // Comparison
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| 422 | BOOST_UBLAS_INLINE
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| 423 | bool operator == (const iterator &it) const {
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| 424 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
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| 425 | return it_ == it.it_;
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| 426 | }
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| 427 | BOOST_UBLAS_INLINE
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| 428 | bool operator < (const iterator &it) const {
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| 429 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
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| 430 | return it_ < it.it_;
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| 431 | }
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| 432 |
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| 433 | private:
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| 434 | subiterator_type it_;
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| 435 |
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| 436 | friend class const_iterator;
|
---|
| 437 | };
|
---|
| 438 | #endif
|
---|
| 439 |
|
---|
| 440 | BOOST_UBLAS_INLINE
|
---|
| 441 | iterator begin () {
|
---|
| 442 | return find (0);
|
---|
| 443 | }
|
---|
| 444 | BOOST_UBLAS_INLINE
|
---|
| 445 | iterator end () {
|
---|
| 446 | return find (size ());
|
---|
| 447 | }
|
---|
| 448 |
|
---|
| 449 | // Reverse iterator
|
---|
| 450 | typedef reverse_iterator_base<const_iterator> const_reverse_iterator;
|
---|
| 451 | typedef reverse_iterator_base<iterator> reverse_iterator;
|
---|
| 452 |
|
---|
| 453 | BOOST_UBLAS_INLINE
|
---|
| 454 | const_reverse_iterator rbegin () const {
|
---|
| 455 | return const_reverse_iterator (end ());
|
---|
| 456 | }
|
---|
| 457 | BOOST_UBLAS_INLINE
|
---|
| 458 | const_reverse_iterator rend () const {
|
---|
| 459 | return const_reverse_iterator (begin ());
|
---|
| 460 | }
|
---|
| 461 | BOOST_UBLAS_INLINE
|
---|
| 462 | reverse_iterator rbegin () {
|
---|
| 463 | return reverse_iterator (end ());
|
---|
| 464 | }
|
---|
| 465 | BOOST_UBLAS_INLINE
|
---|
| 466 | reverse_iterator rend () {
|
---|
| 467 | return reverse_iterator (begin ());
|
---|
| 468 | }
|
---|
| 469 |
|
---|
| 470 | private:
|
---|
| 471 | vector_closure_type data_;
|
---|
| 472 | range_type r_;
|
---|
| 473 | };
|
---|
| 474 |
|
---|
| 475 | // Simple Projections
|
---|
| 476 | template<class V>
|
---|
| 477 | BOOST_UBLAS_INLINE
|
---|
| 478 | vector_range<V> subrange (V &data, typename V::size_type start, typename V::size_type stop) {
|
---|
| 479 | typedef basic_range<typename V::size_type, typename V::difference_type> range_type;
|
---|
| 480 | return vector_range<V> (data, range_type (start, stop));
|
---|
| 481 | }
|
---|
| 482 | template<class V>
|
---|
| 483 | BOOST_UBLAS_INLINE
|
---|
| 484 | vector_range<const V> subrange (const V &data, typename V::size_type start, typename V::size_type stop) {
|
---|
| 485 | typedef basic_range<typename V::size_type, typename V::difference_type> range_type;
|
---|
| 486 | return vector_range<const V> (data, range_type (start, stop));
|
---|
| 487 | }
|
---|
| 488 |
|
---|
| 489 | // Generic Projections
|
---|
| 490 | template<class V>
|
---|
| 491 | BOOST_UBLAS_INLINE
|
---|
| 492 | vector_range<V> project (V &data, typename vector_range<V>::range_type const &r) {
|
---|
| 493 | return vector_range<V> (data, r);
|
---|
| 494 | }
|
---|
| 495 | template<class V>
|
---|
| 496 | BOOST_UBLAS_INLINE
|
---|
| 497 | const vector_range<const V> project (const V &data, typename vector_range<V>::range_type const &r) {
|
---|
| 498 | // ISSUE was: return vector_range<V> (const_cast<V &> (data), r);
|
---|
| 499 | return vector_range<const V> (data, r);
|
---|
| 500 | }
|
---|
| 501 | template<class V>
|
---|
| 502 | BOOST_UBLAS_INLINE
|
---|
| 503 | vector_range<V> project (vector_range<V> &data, const typename vector_range<V>::range_type &r) {
|
---|
| 504 | return data.project (r);
|
---|
| 505 | }
|
---|
| 506 | template<class V>
|
---|
| 507 | BOOST_UBLAS_INLINE
|
---|
| 508 | const vector_range<V> project (const vector_range<V> &data, const typename vector_range<V>::range_type &r) {
|
---|
| 509 | return data.project (r);
|
---|
| 510 | }
|
---|
| 511 |
|
---|
| 512 | // Specialization of temporary_traits
|
---|
| 513 | template <class V>
|
---|
| 514 | struct vector_temporary_traits< vector_range<V> >
|
---|
| 515 | : vector_temporary_traits< V > {} ;
|
---|
| 516 |
|
---|
| 517 |
|
---|
| 518 | // Vector based slice class
|
---|
| 519 | template<class V>
|
---|
| 520 | class vector_slice:
|
---|
| 521 | public vector_expression<vector_slice<V> > {
|
---|
| 522 |
|
---|
| 523 | typedef vector_slice<V> self_type;
|
---|
| 524 | public:
|
---|
| 525 | #ifdef BOOST_UBLAS_ENABLE_PROXY_SHORTCUTS
|
---|
| 526 | using vector_expression<self_type>::operator ();
|
---|
| 527 | #endif
|
---|
| 528 | typedef const V const_vector_type;
|
---|
| 529 | typedef V vector_type;
|
---|
| 530 | typedef typename V::size_type size_type;
|
---|
| 531 | typedef typename V::difference_type difference_type;
|
---|
| 532 | typedef typename V::value_type value_type;
|
---|
| 533 | typedef typename V::const_reference const_reference;
|
---|
| 534 | typedef typename boost::mpl::if_<boost::is_const<V>,
|
---|
| 535 | typename V::const_reference,
|
---|
| 536 | typename V::reference>::type reference;
|
---|
| 537 | typedef typename boost::mpl::if_<boost::is_const<V>,
|
---|
| 538 | typename V::const_closure_type,
|
---|
| 539 | typename V::closure_type>::type vector_closure_type;
|
---|
| 540 | typedef basic_range<size_type, difference_type> range_type;
|
---|
| 541 | typedef basic_slice<size_type, difference_type> slice_type;
|
---|
| 542 | typedef const self_type const_closure_type;
|
---|
| 543 | typedef self_type closure_type;
|
---|
| 544 | typedef typename storage_restrict_traits<typename V::storage_category,
|
---|
| 545 | dense_proxy_tag>::storage_category storage_category;
|
---|
| 546 |
|
---|
| 547 | // Construction and destruction
|
---|
| 548 | BOOST_UBLAS_INLINE
|
---|
| 549 | vector_slice (vector_type &data, const slice_type &s):
|
---|
| 550 | data_ (data), s_ (s.preprocess (data.size ())) {
|
---|
| 551 | // Early checking of preconditions here.
|
---|
| 552 | // BOOST_UBLAS_CHECK (s_.start () <= data_.size () &&
|
---|
| 553 | // s_.start () + s_.stride () * (s_.size () - (s_.size () > 0)) <= data_.size (), bad_index ());
|
---|
| 554 | }
|
---|
| 555 | BOOST_UBLAS_INLINE
|
---|
| 556 | vector_slice (const vector_closure_type &data, const slice_type &s, int):
|
---|
| 557 | data_ (data), s_ (s.preprocess (data.size ())) {
|
---|
| 558 | // Early checking of preconditions here.
|
---|
| 559 | // BOOST_UBLAS_CHECK (s_.start () <= data_.size () &&
|
---|
| 560 | // s_.start () + s_.stride () * (s_.size () - (s_.size () > 0)) <= data_.size (), bad_index ());
|
---|
| 561 | }
|
---|
| 562 |
|
---|
| 563 | // Accessors
|
---|
| 564 | BOOST_UBLAS_INLINE
|
---|
| 565 | size_type start () const {
|
---|
| 566 | return s_.start ();
|
---|
| 567 | }
|
---|
| 568 | BOOST_UBLAS_INLINE
|
---|
| 569 | difference_type stride () const {
|
---|
| 570 | return s_.stride ();
|
---|
| 571 | }
|
---|
| 572 | BOOST_UBLAS_INLINE
|
---|
| 573 | size_type size () const {
|
---|
| 574 | return s_.size ();
|
---|
| 575 | }
|
---|
| 576 |
|
---|
| 577 | // Storage accessors
|
---|
| 578 | BOOST_UBLAS_INLINE
|
---|
| 579 | const vector_closure_type &data () const {
|
---|
| 580 | return data_;
|
---|
| 581 | }
|
---|
| 582 | BOOST_UBLAS_INLINE
|
---|
| 583 | vector_closure_type &data () {
|
---|
| 584 | return data_;
|
---|
| 585 | }
|
---|
| 586 |
|
---|
| 587 | // Element access
|
---|
| 588 | #ifndef BOOST_UBLAS_PROXY_CONST_MEMBER
|
---|
| 589 | BOOST_UBLAS_INLINE
|
---|
| 590 | const_reference operator () (size_type i) const {
|
---|
| 591 | return data_ (s_ (i));
|
---|
| 592 | }
|
---|
| 593 | BOOST_UBLAS_INLINE
|
---|
| 594 | reference operator () (size_type i) {
|
---|
| 595 | return data_ (s_ (i));
|
---|
| 596 | }
|
---|
| 597 |
|
---|
| 598 | BOOST_UBLAS_INLINE
|
---|
| 599 | const_reference operator [] (size_type i) const {
|
---|
| 600 | return (*this) (i);
|
---|
| 601 | }
|
---|
| 602 | BOOST_UBLAS_INLINE
|
---|
| 603 | reference operator [] (size_type i) {
|
---|
| 604 | return (*this) (i);
|
---|
| 605 | }
|
---|
| 606 | #else
|
---|
| 607 | BOOST_UBLAS_INLINE
|
---|
| 608 | reference operator () (size_type i) const {
|
---|
| 609 | return data_ (s_ (i));
|
---|
| 610 | }
|
---|
| 611 |
|
---|
| 612 | BOOST_UBLAS_INLINE
|
---|
| 613 | reference operator [] (size_type i) const {
|
---|
| 614 | return (*this) (i);
|
---|
| 615 | }
|
---|
| 616 | #endif
|
---|
| 617 |
|
---|
| 618 | // ISSUE can this be done in free project function?
|
---|
| 619 | // Although a const function can create a non-const proxy to a non-const object
|
---|
| 620 | // Critical is that vector_type and data_ (vector_closure_type) are const correct
|
---|
| 621 | BOOST_UBLAS_INLINE
|
---|
| 622 | vector_slice<vector_type> project (const range_type &r) const {
|
---|
| 623 | return vector_slice<vector_type> (data_, s_.compose (r.preprocess (data_.size ())), false);
|
---|
| 624 | }
|
---|
| 625 | BOOST_UBLAS_INLINE
|
---|
| 626 | vector_slice<vector_type> project (const slice_type &s) const {
|
---|
| 627 | return vector_slice<vector_type> (data_, s_.compose (s.preprocess (data_.size ())), false);
|
---|
| 628 | }
|
---|
| 629 |
|
---|
| 630 | // Assignment
|
---|
| 631 | BOOST_UBLAS_INLINE
|
---|
| 632 | vector_slice &operator = (const vector_slice &vs) {
|
---|
| 633 | // ISSUE need a temporary, proxy can be overlaping alias
|
---|
| 634 | vector_assign<scalar_assign> (*this, typename vector_temporary_traits<V>::type (vs));
|
---|
| 635 | return *this;
|
---|
| 636 | }
|
---|
| 637 | BOOST_UBLAS_INLINE
|
---|
| 638 | vector_slice &assign_temporary (vector_slice &vs) {
|
---|
| 639 | // assign elements, proxied container remains the same
|
---|
| 640 | vector_assign<scalar_assign> (*this, vs);
|
---|
| 641 | return *this;
|
---|
| 642 | }
|
---|
| 643 | template<class AE>
|
---|
| 644 | BOOST_UBLAS_INLINE
|
---|
| 645 | vector_slice &operator = (const vector_expression<AE> &ae) {
|
---|
| 646 | vector_assign<scalar_assign> (*this, typename vector_temporary_traits<V>::type (ae));
|
---|
| 647 | return *this;
|
---|
| 648 | }
|
---|
| 649 | template<class AE>
|
---|
| 650 | BOOST_UBLAS_INLINE
|
---|
| 651 | vector_slice &assign (const vector_expression<AE> &ae) {
|
---|
| 652 | vector_assign<scalar_assign> (*this, ae);
|
---|
| 653 | return *this;
|
---|
| 654 | }
|
---|
| 655 | template<class AE>
|
---|
| 656 | BOOST_UBLAS_INLINE
|
---|
| 657 | vector_slice &operator += (const vector_expression<AE> &ae) {
|
---|
| 658 | vector_assign<scalar_assign> (*this, typename vector_temporary_traits<V>::type (*this + ae));
|
---|
| 659 | return *this;
|
---|
| 660 | }
|
---|
| 661 | template<class AE>
|
---|
| 662 | BOOST_UBLAS_INLINE
|
---|
| 663 | vector_slice &plus_assign (const vector_expression<AE> &ae) {
|
---|
| 664 | vector_assign<scalar_plus_assign> (*this, ae);
|
---|
| 665 | return *this;
|
---|
| 666 | }
|
---|
| 667 | template<class AE>
|
---|
| 668 | BOOST_UBLAS_INLINE
|
---|
| 669 | vector_slice &operator -= (const vector_expression<AE> &ae) {
|
---|
| 670 | vector_assign<scalar_assign> (*this, typename vector_temporary_traits<V>::type (*this - ae));
|
---|
| 671 | return *this;
|
---|
| 672 | }
|
---|
| 673 | template<class AE>
|
---|
| 674 | BOOST_UBLAS_INLINE
|
---|
| 675 | vector_slice &minus_assign (const vector_expression<AE> &ae) {
|
---|
| 676 | vector_assign<scalar_minus_assign> (*this, ae);
|
---|
| 677 | return *this;
|
---|
| 678 | }
|
---|
| 679 | template<class AT>
|
---|
| 680 | BOOST_UBLAS_INLINE
|
---|
| 681 | vector_slice &operator *= (const AT &at) {
|
---|
| 682 | vector_assign_scalar<scalar_multiplies_assign> (*this, at);
|
---|
| 683 | return *this;
|
---|
| 684 | }
|
---|
| 685 | template<class AT>
|
---|
| 686 | BOOST_UBLAS_INLINE
|
---|
| 687 | vector_slice &operator /= (const AT &at) {
|
---|
| 688 | vector_assign_scalar<scalar_divides_assign> (*this, at);
|
---|
| 689 | return *this;
|
---|
| 690 | }
|
---|
| 691 |
|
---|
| 692 | // Closure comparison
|
---|
| 693 | BOOST_UBLAS_INLINE
|
---|
| 694 | bool same_closure (const vector_slice &vr) const {
|
---|
| 695 | return (*this).data_.same_closure (vr.data_);
|
---|
| 696 | }
|
---|
| 697 |
|
---|
| 698 | // Comparison
|
---|
| 699 | BOOST_UBLAS_INLINE
|
---|
| 700 | bool operator == (const vector_slice &vs) const {
|
---|
| 701 | return (*this).data_ == vs.data_ && s_ == vs.s_;
|
---|
| 702 | }
|
---|
| 703 |
|
---|
| 704 | // Swapping
|
---|
| 705 | BOOST_UBLAS_INLINE
|
---|
| 706 | void swap (vector_slice vs) {
|
---|
| 707 | if (this != &vs) {
|
---|
| 708 | BOOST_UBLAS_CHECK (size () == vs.size (), bad_size ());
|
---|
| 709 | // Sparse ranges may be nonconformant now.
|
---|
| 710 | // std::swap_ranges (begin (), end (), vs.begin ());
|
---|
| 711 | vector_swap<scalar_swap> (*this, vs);
|
---|
| 712 | }
|
---|
| 713 | }
|
---|
| 714 | BOOST_UBLAS_INLINE
|
---|
| 715 | friend void swap (vector_slice vs1, vector_slice vs2) {
|
---|
| 716 | vs1.swap (vs2);
|
---|
| 717 | }
|
---|
| 718 |
|
---|
| 719 | // Iterator types
|
---|
| 720 | private:
|
---|
| 721 | // Use slice as an index - FIXME this fails for packed assignment
|
---|
| 722 | typedef typename slice_type::const_iterator const_subiterator_type;
|
---|
| 723 | typedef typename slice_type::const_iterator subiterator_type;
|
---|
| 724 |
|
---|
| 725 | public:
|
---|
| 726 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 727 | typedef indexed_iterator<vector_slice<vector_type>,
|
---|
| 728 | typename vector_type::iterator::iterator_category> iterator;
|
---|
| 729 | typedef indexed_const_iterator<vector_slice<vector_type>,
|
---|
| 730 | typename vector_type::const_iterator::iterator_category> const_iterator;
|
---|
| 731 | #else
|
---|
| 732 | class const_iterator;
|
---|
| 733 | class iterator;
|
---|
| 734 | #endif
|
---|
| 735 |
|
---|
| 736 | // Element lookup
|
---|
| 737 | BOOST_UBLAS_INLINE
|
---|
| 738 | const_iterator find (size_type i) const {
|
---|
| 739 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 740 | return const_iterator (*this, i);
|
---|
| 741 | #else
|
---|
| 742 | return const_iterator (*this, s_.begin () + i);
|
---|
| 743 | #endif
|
---|
| 744 | }
|
---|
| 745 | BOOST_UBLAS_INLINE
|
---|
| 746 | iterator find (size_type i) {
|
---|
| 747 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 748 | return iterator (*this, i);
|
---|
| 749 | #else
|
---|
| 750 | return iterator (*this, s_.begin () + i);
|
---|
| 751 | #endif
|
---|
| 752 | }
|
---|
| 753 |
|
---|
| 754 | #ifndef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 755 | class const_iterator:
|
---|
| 756 | public container_const_reference<vector_slice>,
|
---|
| 757 | public iterator_base_traits<typename V::const_iterator::iterator_category>::template
|
---|
| 758 | iterator_base<const_iterator, value_type>::type {
|
---|
| 759 | public:
|
---|
| 760 | typedef typename V::const_iterator::difference_type difference_type;
|
---|
| 761 | typedef typename V::const_iterator::value_type value_type;
|
---|
| 762 | typedef typename V::const_reference reference; //FIXME due to indexing access
|
---|
| 763 | typedef typename V::const_iterator::pointer pointer;
|
---|
| 764 |
|
---|
| 765 | // Construction and destruction
|
---|
| 766 | BOOST_UBLAS_INLINE
|
---|
| 767 | const_iterator ():
|
---|
| 768 | container_const_reference<self_type> (), it_ () {}
|
---|
| 769 | BOOST_UBLAS_INLINE
|
---|
| 770 | const_iterator (const self_type &vs, const const_subiterator_type &it):
|
---|
| 771 | container_const_reference<self_type> (vs), it_ (it) {}
|
---|
| 772 | BOOST_UBLAS_INLINE
|
---|
| 773 | const_iterator (const iterator &it):
|
---|
| 774 | container_const_reference<self_type> (it ()), it_ (it.it_) {}
|
---|
| 775 |
|
---|
| 776 | // Arithmetic
|
---|
| 777 | BOOST_UBLAS_INLINE
|
---|
| 778 | const_iterator &operator ++ () {
|
---|
| 779 | ++ it_;
|
---|
| 780 | return *this;
|
---|
| 781 | }
|
---|
| 782 | BOOST_UBLAS_INLINE
|
---|
| 783 | const_iterator &operator -- () {
|
---|
| 784 | -- it_;
|
---|
| 785 | return *this;
|
---|
| 786 | }
|
---|
| 787 | BOOST_UBLAS_INLINE
|
---|
| 788 | const_iterator &operator += (difference_type n) {
|
---|
| 789 | it_ += n;
|
---|
| 790 | return *this;
|
---|
| 791 | }
|
---|
| 792 | BOOST_UBLAS_INLINE
|
---|
| 793 | const_iterator &operator -= (difference_type n) {
|
---|
| 794 | it_ -= n;
|
---|
| 795 | return *this;
|
---|
| 796 | }
|
---|
| 797 | BOOST_UBLAS_INLINE
|
---|
| 798 | difference_type operator - (const const_iterator &it) const {
|
---|
| 799 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 800 | return it_ - it.it_;
|
---|
| 801 | }
|
---|
| 802 |
|
---|
| 803 | // Dereference
|
---|
| 804 | BOOST_UBLAS_INLINE
|
---|
| 805 | const_reference operator * () const {
|
---|
| 806 | // FIXME replace find with at_element
|
---|
| 807 | BOOST_UBLAS_CHECK (index () < (*this) ().size (), bad_index ());
|
---|
| 808 | return (*this) ().data_ (*it_);
|
---|
| 809 | }
|
---|
| 810 |
|
---|
| 811 | // Index
|
---|
| 812 | BOOST_UBLAS_INLINE
|
---|
| 813 | size_type index () const {
|
---|
| 814 | return it_.index ();
|
---|
| 815 | }
|
---|
| 816 |
|
---|
| 817 | // Assignment
|
---|
| 818 | BOOST_UBLAS_INLINE
|
---|
| 819 | const_iterator &operator = (const const_iterator &it) {
|
---|
| 820 | container_const_reference<self_type>::assign (&it ());
|
---|
| 821 | it_ = it.it_;
|
---|
| 822 | return *this;
|
---|
| 823 | }
|
---|
| 824 |
|
---|
| 825 | // Comparison
|
---|
| 826 | BOOST_UBLAS_INLINE
|
---|
| 827 | bool operator == (const const_iterator &it) const {
|
---|
| 828 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 829 | return it_ == it.it_;
|
---|
| 830 | }
|
---|
| 831 | BOOST_UBLAS_INLINE
|
---|
| 832 | bool operator < (const const_iterator &it) const {
|
---|
| 833 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 834 | return it_ < it.it_;
|
---|
| 835 | }
|
---|
| 836 |
|
---|
| 837 | private:
|
---|
| 838 | const_subiterator_type it_;
|
---|
| 839 | };
|
---|
| 840 | #endif
|
---|
| 841 |
|
---|
| 842 | BOOST_UBLAS_INLINE
|
---|
| 843 | const_iterator begin () const {
|
---|
| 844 | return find (0);
|
---|
| 845 | }
|
---|
| 846 | BOOST_UBLAS_INLINE
|
---|
| 847 | const_iterator end () const {
|
---|
| 848 | return find (size ());
|
---|
| 849 | }
|
---|
| 850 |
|
---|
| 851 | #ifndef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 852 | class iterator:
|
---|
| 853 | public container_reference<vector_slice>,
|
---|
| 854 | public iterator_base_traits<typename V::iterator::iterator_category>::template
|
---|
| 855 | iterator_base<iterator, value_type>::type {
|
---|
| 856 | public:
|
---|
| 857 | typedef typename V::iterator::difference_type difference_type;
|
---|
| 858 | typedef typename V::iterator::value_type value_type;
|
---|
| 859 | typedef typename V::reference reference; //FIXME due to indexing access
|
---|
| 860 | typedef typename V::iterator::pointer pointer;
|
---|
| 861 |
|
---|
| 862 | // Construction and destruction
|
---|
| 863 | BOOST_UBLAS_INLINE
|
---|
| 864 | iterator ():
|
---|
| 865 | container_reference<self_type> (), it_ () {}
|
---|
| 866 | BOOST_UBLAS_INLINE
|
---|
| 867 | iterator (self_type &vs, const subiterator_type &it):
|
---|
| 868 | container_reference<self_type> (vs), it_ (it) {}
|
---|
| 869 |
|
---|
| 870 | // Arithmetic
|
---|
| 871 | BOOST_UBLAS_INLINE
|
---|
| 872 | iterator &operator ++ () {
|
---|
| 873 | ++ it_;
|
---|
| 874 | return *this;
|
---|
| 875 | }
|
---|
| 876 | BOOST_UBLAS_INLINE
|
---|
| 877 | iterator &operator -- () {
|
---|
| 878 | -- it_;
|
---|
| 879 | return *this;
|
---|
| 880 | }
|
---|
| 881 | BOOST_UBLAS_INLINE
|
---|
| 882 | iterator &operator += (difference_type n) {
|
---|
| 883 | it_ += n;
|
---|
| 884 | return *this;
|
---|
| 885 | }
|
---|
| 886 | BOOST_UBLAS_INLINE
|
---|
| 887 | iterator &operator -= (difference_type n) {
|
---|
| 888 | it_ -= n;
|
---|
| 889 | return *this;
|
---|
| 890 | }
|
---|
| 891 | BOOST_UBLAS_INLINE
|
---|
| 892 | difference_type operator - (const iterator &it) const {
|
---|
| 893 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 894 | return it_ - it.it_;
|
---|
| 895 | }
|
---|
| 896 |
|
---|
| 897 | // Dereference
|
---|
| 898 | BOOST_UBLAS_INLINE
|
---|
| 899 | reference operator * () const {
|
---|
| 900 | // FIXME replace find with at_element
|
---|
| 901 | BOOST_UBLAS_CHECK (index () < (*this) ().size (), bad_index ());
|
---|
| 902 | return (*this) ().data_ (*it_);
|
---|
| 903 | }
|
---|
| 904 |
|
---|
| 905 | // Index
|
---|
| 906 | BOOST_UBLAS_INLINE
|
---|
| 907 | size_type index () const {
|
---|
| 908 | return it_.index ();
|
---|
| 909 | }
|
---|
| 910 |
|
---|
| 911 | // Assignment
|
---|
| 912 | BOOST_UBLAS_INLINE
|
---|
| 913 | iterator &operator = (const iterator &it) {
|
---|
| 914 | container_reference<self_type>::assign (&it ());
|
---|
| 915 | it_ = it.it_;
|
---|
| 916 | return *this;
|
---|
| 917 | }
|
---|
| 918 |
|
---|
| 919 | // Comparison
|
---|
| 920 | BOOST_UBLAS_INLINE
|
---|
| 921 | bool operator == (const iterator &it) const {
|
---|
| 922 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 923 | return it_ == it.it_;
|
---|
| 924 | }
|
---|
| 925 | BOOST_UBLAS_INLINE
|
---|
| 926 | bool operator < (const iterator &it) const {
|
---|
| 927 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 928 | return it_ < it.it_;
|
---|
| 929 | }
|
---|
| 930 |
|
---|
| 931 | private:
|
---|
| 932 | subiterator_type it_;
|
---|
| 933 |
|
---|
| 934 | friend class const_iterator;
|
---|
| 935 | };
|
---|
| 936 | #endif
|
---|
| 937 |
|
---|
| 938 | BOOST_UBLAS_INLINE
|
---|
| 939 | iterator begin () {
|
---|
| 940 | return find (0);
|
---|
| 941 | }
|
---|
| 942 | BOOST_UBLAS_INLINE
|
---|
| 943 | iterator end () {
|
---|
| 944 | return find (size ());
|
---|
| 945 | }
|
---|
| 946 |
|
---|
| 947 | // Reverse iterator
|
---|
| 948 | typedef reverse_iterator_base<const_iterator> const_reverse_iterator;
|
---|
| 949 | typedef reverse_iterator_base<iterator> reverse_iterator;
|
---|
| 950 |
|
---|
| 951 | BOOST_UBLAS_INLINE
|
---|
| 952 | const_reverse_iterator rbegin () const {
|
---|
| 953 | return const_reverse_iterator (end ());
|
---|
| 954 | }
|
---|
| 955 | BOOST_UBLAS_INLINE
|
---|
| 956 | const_reverse_iterator rend () const {
|
---|
| 957 | return const_reverse_iterator (begin ());
|
---|
| 958 | }
|
---|
| 959 | BOOST_UBLAS_INLINE
|
---|
| 960 | reverse_iterator rbegin () {
|
---|
| 961 | return reverse_iterator (end ());
|
---|
| 962 | }
|
---|
| 963 | BOOST_UBLAS_INLINE
|
---|
| 964 | reverse_iterator rend () {
|
---|
| 965 | return reverse_iterator (begin ());
|
---|
| 966 | }
|
---|
| 967 |
|
---|
| 968 | private:
|
---|
| 969 | vector_closure_type data_;
|
---|
| 970 | slice_type s_;
|
---|
| 971 | };
|
---|
| 972 |
|
---|
| 973 | // Simple Projections
|
---|
| 974 | template<class V>
|
---|
| 975 | BOOST_UBLAS_INLINE
|
---|
| 976 | vector_slice<V> subslice (V &data, typename V::size_type start, typename V::difference_type stride, typename V::size_type size) {
|
---|
| 977 | typedef basic_slice<typename V::size_type, typename V::difference_type> slice_type;
|
---|
| 978 | return vector_slice<V> (data, slice_type (start, stride, size));
|
---|
| 979 | }
|
---|
| 980 | template<class V>
|
---|
| 981 | BOOST_UBLAS_INLINE
|
---|
| 982 | vector_slice<const V> subslice (const V &data, typename V::size_type start, typename V::difference_type stride, typename V::size_type size) {
|
---|
| 983 | typedef basic_slice<typename V::size_type, typename V::difference_type> slice_type;
|
---|
| 984 | return vector_slice<const V> (data, slice_type (start, stride, size));
|
---|
| 985 | }
|
---|
| 986 |
|
---|
| 987 | // Generic Projections
|
---|
| 988 | template<class V>
|
---|
| 989 | BOOST_UBLAS_INLINE
|
---|
| 990 | vector_slice<V> project (V &data, const typename vector_slice<V>::slice_type &s) {
|
---|
| 991 | return vector_slice<V> (data, s);
|
---|
| 992 | }
|
---|
| 993 | template<class V>
|
---|
| 994 | BOOST_UBLAS_INLINE
|
---|
| 995 | const vector_slice<const V> project (const V &data, const typename vector_slice<V>::slice_type &s) {
|
---|
| 996 | // ISSUE was: return vector_slice<V> (const_cast<V &> (data), s);
|
---|
| 997 | return vector_slice<const V> (data, s);
|
---|
| 998 | }
|
---|
| 999 | template<class V>
|
---|
| 1000 | BOOST_UBLAS_INLINE
|
---|
| 1001 | vector_slice<V> project (vector_slice<V> &data, const typename vector_slice<V>::slice_type &s) {
|
---|
| 1002 | return data.project (s);
|
---|
| 1003 | }
|
---|
| 1004 | template<class V>
|
---|
| 1005 | BOOST_UBLAS_INLINE
|
---|
| 1006 | const vector_slice<V> project (const vector_slice<V> &data, const typename vector_slice<V>::slice_type &s) {
|
---|
| 1007 | return data.project (s);
|
---|
| 1008 | }
|
---|
| 1009 | // ISSUE in the following two functions it would be logical to use vector_slice<V>::range_type but this confuses VC7.1 and 8.0
|
---|
| 1010 | template<class V>
|
---|
| 1011 | BOOST_UBLAS_INLINE
|
---|
| 1012 | vector_slice<V> project (vector_slice<V> &data, const typename vector_range<V>::range_type &r) {
|
---|
| 1013 | return data.project (r);
|
---|
| 1014 | }
|
---|
| 1015 | template<class V>
|
---|
| 1016 | BOOST_UBLAS_INLINE
|
---|
| 1017 | const vector_slice<V> project (const vector_slice<V> &data, const typename vector_range<V>::range_type &r) {
|
---|
| 1018 | return data.project (r);
|
---|
| 1019 | }
|
---|
| 1020 |
|
---|
| 1021 | // Specialization of temporary_traits
|
---|
| 1022 | template <class V>
|
---|
| 1023 | struct vector_temporary_traits< vector_slice<V> >
|
---|
| 1024 | : vector_temporary_traits< V > {} ;
|
---|
| 1025 |
|
---|
| 1026 |
|
---|
| 1027 | // Vector based indirection class
|
---|
| 1028 | // Contributed by Toon Knapen.
|
---|
| 1029 | // Extended and optimized by Kresimir Fresl.
|
---|
| 1030 | template<class V, class IA>
|
---|
| 1031 | class vector_indirect:
|
---|
| 1032 | public vector_expression<vector_indirect<V, IA> > {
|
---|
| 1033 |
|
---|
| 1034 | typedef vector_indirect<V, IA> self_type;
|
---|
| 1035 | public:
|
---|
| 1036 | #ifdef BOOST_UBLAS_ENABLE_PROXY_SHORTCUTS
|
---|
| 1037 | using vector_expression<self_type>::operator ();
|
---|
| 1038 | #endif
|
---|
| 1039 | typedef const V const_vector_type;
|
---|
| 1040 | typedef V vector_type;
|
---|
| 1041 | typedef const IA const_indirect_array_type;
|
---|
| 1042 | typedef IA indirect_array_type;
|
---|
| 1043 | typedef typename V::size_type size_type;
|
---|
| 1044 | typedef typename V::difference_type difference_type;
|
---|
| 1045 | typedef typename V::value_type value_type;
|
---|
| 1046 | typedef typename V::const_reference const_reference;
|
---|
| 1047 | typedef typename boost::mpl::if_<boost::is_const<V>,
|
---|
| 1048 | typename V::const_reference,
|
---|
| 1049 | typename V::reference>::type reference;
|
---|
| 1050 | typedef typename boost::mpl::if_<boost::is_const<V>,
|
---|
| 1051 | typename V::const_closure_type,
|
---|
| 1052 | typename V::closure_type>::type vector_closure_type;
|
---|
| 1053 | typedef basic_range<size_type, difference_type> range_type;
|
---|
| 1054 | typedef basic_slice<size_type, difference_type> slice_type;
|
---|
| 1055 | typedef const self_type const_closure_type;
|
---|
| 1056 | typedef self_type closure_type;
|
---|
| 1057 | typedef typename storage_restrict_traits<typename V::storage_category,
|
---|
| 1058 | dense_proxy_tag>::storage_category storage_category;
|
---|
| 1059 |
|
---|
| 1060 | // Construction and destruction
|
---|
| 1061 | BOOST_UBLAS_INLINE
|
---|
| 1062 | vector_indirect (vector_type &data, size_type size):
|
---|
| 1063 | data_ (data), ia_ (size) {}
|
---|
| 1064 | BOOST_UBLAS_INLINE
|
---|
| 1065 | vector_indirect (vector_type &data, const indirect_array_type &ia):
|
---|
| 1066 | data_ (data), ia_ (ia.preprocess (data.size ())) {}
|
---|
| 1067 | BOOST_UBLAS_INLINE
|
---|
| 1068 | vector_indirect (const vector_closure_type &data, const indirect_array_type &ia, int):
|
---|
| 1069 | data_ (data), ia_ (ia.preprocess (data.size ())) {}
|
---|
| 1070 |
|
---|
| 1071 | // Accessors
|
---|
| 1072 | BOOST_UBLAS_INLINE
|
---|
| 1073 | size_type size () const {
|
---|
| 1074 | return ia_.size ();
|
---|
| 1075 | }
|
---|
| 1076 | BOOST_UBLAS_INLINE
|
---|
| 1077 | const_indirect_array_type &indirect () const {
|
---|
| 1078 | return ia_;
|
---|
| 1079 | }
|
---|
| 1080 | BOOST_UBLAS_INLINE
|
---|
| 1081 | indirect_array_type &indirect () {
|
---|
| 1082 | return ia_;
|
---|
| 1083 | }
|
---|
| 1084 |
|
---|
| 1085 | // Storage accessors
|
---|
| 1086 | BOOST_UBLAS_INLINE
|
---|
| 1087 | const vector_closure_type &data () const {
|
---|
| 1088 | return data_;
|
---|
| 1089 | }
|
---|
| 1090 | BOOST_UBLAS_INLINE
|
---|
| 1091 | vector_closure_type &data () {
|
---|
| 1092 | return data_;
|
---|
| 1093 | }
|
---|
| 1094 |
|
---|
| 1095 | // Element access
|
---|
| 1096 | #ifndef BOOST_UBLAS_PROXY_CONST_MEMBER
|
---|
| 1097 | BOOST_UBLAS_INLINE
|
---|
| 1098 | const_reference operator () (size_type i) const {
|
---|
| 1099 | return data_ (ia_ (i));
|
---|
| 1100 | }
|
---|
| 1101 | BOOST_UBLAS_INLINE
|
---|
| 1102 | reference operator () (size_type i) {
|
---|
| 1103 | return data_ (ia_ (i));
|
---|
| 1104 | }
|
---|
| 1105 |
|
---|
| 1106 | BOOST_UBLAS_INLINE
|
---|
| 1107 | const_reference operator [] (size_type i) const {
|
---|
| 1108 | return (*this) (i);
|
---|
| 1109 | }
|
---|
| 1110 | BOOST_UBLAS_INLINE
|
---|
| 1111 | reference operator [] (size_type i) {
|
---|
| 1112 | return (*this) (i);
|
---|
| 1113 | }
|
---|
| 1114 | #else
|
---|
| 1115 | BOOST_UBLAS_INLINE
|
---|
| 1116 | reference operator () (size_type i) const {
|
---|
| 1117 | return data_ (ia_ (i));
|
---|
| 1118 | }
|
---|
| 1119 |
|
---|
| 1120 | BOOST_UBLAS_INLINE
|
---|
| 1121 | reference operator [] (size_type i) const {
|
---|
| 1122 | return (*this) (i);
|
---|
| 1123 | }
|
---|
| 1124 | #endif
|
---|
| 1125 |
|
---|
| 1126 | // ISSUE can this be done in free project function?
|
---|
| 1127 | // Although a const function can create a non-const proxy to a non-const object
|
---|
| 1128 | // Critical is that vector_type and data_ (vector_closure_type) are const correct
|
---|
| 1129 | BOOST_UBLAS_INLINE
|
---|
| 1130 | vector_indirect<vector_type, indirect_array_type> project (const range_type &r) const {
|
---|
| 1131 | return vector_indirect<vector_type, indirect_array_type> (data_, ia_.compose (r.preprocess (data_.size ())), 0);
|
---|
| 1132 | }
|
---|
| 1133 | BOOST_UBLAS_INLINE
|
---|
| 1134 | vector_indirect<vector_type, indirect_array_type> project (const slice_type &s) const {
|
---|
| 1135 | return vector_indirect<vector_type, indirect_array_type> (data_, ia_.compose (s.preprocess (data_.size ())), 0);
|
---|
| 1136 | }
|
---|
| 1137 | BOOST_UBLAS_INLINE
|
---|
| 1138 | vector_indirect<vector_type, indirect_array_type> project (const indirect_array_type &ia) const {
|
---|
| 1139 | return vector_indirect<vector_type, indirect_array_type> (data_, ia_.compose (ia.preprocess (data_.size ())), 0);
|
---|
| 1140 | }
|
---|
| 1141 |
|
---|
| 1142 | // Assignment
|
---|
| 1143 | BOOST_UBLAS_INLINE
|
---|
| 1144 | vector_indirect &operator = (const vector_indirect &vi) {
|
---|
| 1145 | // ISSUE need a temporary, proxy can be overlaping alias
|
---|
| 1146 | vector_assign<scalar_assign> (*this, typename vector_temporary_traits<V>::type (vi));
|
---|
| 1147 | return *this;
|
---|
| 1148 | }
|
---|
| 1149 | BOOST_UBLAS_INLINE
|
---|
| 1150 | vector_indirect &assign_temporary (vector_indirect &vi) {
|
---|
| 1151 | // assign elements, proxied container remains the same
|
---|
| 1152 | vector_assign<scalar_assign> (*this, vi);
|
---|
| 1153 | return *this;
|
---|
| 1154 | }
|
---|
| 1155 | template<class AE>
|
---|
| 1156 | BOOST_UBLAS_INLINE
|
---|
| 1157 | vector_indirect &operator = (const vector_expression<AE> &ae) {
|
---|
| 1158 | vector_assign<scalar_assign> (*this, typename vector_temporary_traits<V>::type (ae));
|
---|
| 1159 | return *this;
|
---|
| 1160 | }
|
---|
| 1161 | template<class AE>
|
---|
| 1162 | BOOST_UBLAS_INLINE
|
---|
| 1163 | vector_indirect &assign (const vector_expression<AE> &ae) {
|
---|
| 1164 | vector_assign<scalar_assign> (*this, ae);
|
---|
| 1165 | return *this;
|
---|
| 1166 | }
|
---|
| 1167 | template<class AE>
|
---|
| 1168 | BOOST_UBLAS_INLINE
|
---|
| 1169 | vector_indirect &operator += (const vector_expression<AE> &ae) {
|
---|
| 1170 | vector_assign<scalar_assign> (*this, typename vector_temporary_traits<V>::type (*this + ae));
|
---|
| 1171 | return *this;
|
---|
| 1172 | }
|
---|
| 1173 | template<class AE>
|
---|
| 1174 | BOOST_UBLAS_INLINE
|
---|
| 1175 | vector_indirect &plus_assign (const vector_expression<AE> &ae) {
|
---|
| 1176 | vector_assign<scalar_plus_assign> (*this, ae);
|
---|
| 1177 | return *this;
|
---|
| 1178 | }
|
---|
| 1179 | template<class AE>
|
---|
| 1180 | BOOST_UBLAS_INLINE
|
---|
| 1181 | vector_indirect &operator -= (const vector_expression<AE> &ae) {
|
---|
| 1182 | vector_assign<scalar_assign> (*this, typename vector_temporary_traits<V>::type (*this - ae));
|
---|
| 1183 | return *this;
|
---|
| 1184 | }
|
---|
| 1185 | template<class AE>
|
---|
| 1186 | BOOST_UBLAS_INLINE
|
---|
| 1187 | vector_indirect &minus_assign (const vector_expression<AE> &ae) {
|
---|
| 1188 | vector_assign<scalar_minus_assign> (*this, ae);
|
---|
| 1189 | return *this;
|
---|
| 1190 | }
|
---|
| 1191 | template<class AT>
|
---|
| 1192 | BOOST_UBLAS_INLINE
|
---|
| 1193 | vector_indirect &operator *= (const AT &at) {
|
---|
| 1194 | vector_assign_scalar<scalar_multiplies_assign> (*this, at);
|
---|
| 1195 | return *this;
|
---|
| 1196 | }
|
---|
| 1197 | template<class AT>
|
---|
| 1198 | BOOST_UBLAS_INLINE
|
---|
| 1199 | vector_indirect &operator /= (const AT &at) {
|
---|
| 1200 | vector_assign_scalar<scalar_divides_assign> (*this, at);
|
---|
| 1201 | return *this;
|
---|
| 1202 | }
|
---|
| 1203 |
|
---|
| 1204 | // Closure comparison
|
---|
| 1205 | BOOST_UBLAS_INLINE
|
---|
| 1206 | bool same_closure (const vector_indirect &vr) const {
|
---|
| 1207 | return true;
|
---|
| 1208 | }
|
---|
| 1209 |
|
---|
| 1210 | // Comparison
|
---|
| 1211 | BOOST_UBLAS_INLINE
|
---|
| 1212 | bool operator == (const vector_indirect &vi) const {
|
---|
| 1213 | return (*this).data_ == vi.data_ && ia_ == vi.ia_;
|
---|
| 1214 | }
|
---|
| 1215 |
|
---|
| 1216 | // Swapping
|
---|
| 1217 | BOOST_UBLAS_INLINE
|
---|
| 1218 | void swap (vector_indirect vi) {
|
---|
| 1219 | if (this != &vi) {
|
---|
| 1220 | BOOST_UBLAS_CHECK (size () == vi.size (), bad_size ());
|
---|
| 1221 | // Sparse ranges may be nonconformant now.
|
---|
| 1222 | // std::swap_ranges (begin (), end (), vi.begin ());
|
---|
| 1223 | vector_swap<scalar_swap> (*this, vi);
|
---|
| 1224 | }
|
---|
| 1225 | }
|
---|
| 1226 | BOOST_UBLAS_INLINE
|
---|
| 1227 | friend void swap (vector_indirect vi1, vector_indirect vi2) {
|
---|
| 1228 | vi1.swap (vi2);
|
---|
| 1229 | }
|
---|
| 1230 |
|
---|
| 1231 | // Iterator types
|
---|
| 1232 | private:
|
---|
| 1233 | // Use indirect array as an index - FIXME this fails for packed assignment
|
---|
| 1234 | typedef typename IA::const_iterator const_subiterator_type;
|
---|
| 1235 | typedef typename IA::const_iterator subiterator_type;
|
---|
| 1236 |
|
---|
| 1237 | public:
|
---|
| 1238 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 1239 | typedef indexed_iterator<vector_indirect<vector_type, indirect_array_type>,
|
---|
| 1240 | typename vector_type::iterator::iterator_category> iterator;
|
---|
| 1241 | typedef indexed_const_iterator<vector_indirect<vector_type, indirect_array_type>,
|
---|
| 1242 | typename vector_type::const_iterator::iterator_category> const_iterator;
|
---|
| 1243 | #else
|
---|
| 1244 | class const_iterator;
|
---|
| 1245 | class iterator;
|
---|
| 1246 | #endif
|
---|
| 1247 | // Element lookup
|
---|
| 1248 | BOOST_UBLAS_INLINE
|
---|
| 1249 | const_iterator find (size_type i) const {
|
---|
| 1250 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 1251 | return const_iterator (*this, i);
|
---|
| 1252 | #else
|
---|
| 1253 | return const_iterator (*this, ia_.begin () + i);
|
---|
| 1254 | #endif
|
---|
| 1255 | }
|
---|
| 1256 | BOOST_UBLAS_INLINE
|
---|
| 1257 | iterator find (size_type i) {
|
---|
| 1258 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 1259 | return iterator (*this, i);
|
---|
| 1260 | #else
|
---|
| 1261 | return iterator (*this, ia_.begin () + i);
|
---|
| 1262 | #endif
|
---|
| 1263 | }
|
---|
| 1264 |
|
---|
| 1265 | // Iterators simply are indices.
|
---|
| 1266 |
|
---|
| 1267 | #ifndef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 1268 | class const_iterator:
|
---|
| 1269 | public container_const_reference<vector_indirect>,
|
---|
| 1270 | public iterator_base_traits<typename V::const_iterator::iterator_category>::template
|
---|
| 1271 | iterator_base<const_iterator, value_type>::type {
|
---|
| 1272 | public:
|
---|
| 1273 | typedef typename V::const_iterator::difference_type difference_type;
|
---|
| 1274 | typedef typename V::const_iterator::value_type value_type;
|
---|
| 1275 | typedef typename V::const_reference reference; //FIXME due to indexing access
|
---|
| 1276 | typedef typename V::const_iterator::pointer pointer;
|
---|
| 1277 |
|
---|
| 1278 | // Construction and destruction
|
---|
| 1279 | BOOST_UBLAS_INLINE
|
---|
| 1280 | const_iterator ():
|
---|
| 1281 | container_const_reference<self_type> (), it_ () {}
|
---|
| 1282 | BOOST_UBLAS_INLINE
|
---|
| 1283 | const_iterator (const self_type &vi, const const_subiterator_type &it):
|
---|
| 1284 | container_const_reference<self_type> (vi), it_ (it) {}
|
---|
| 1285 | BOOST_UBLAS_INLINE
|
---|
| 1286 | const_iterator (const iterator &it):
|
---|
| 1287 | container_const_reference<self_type> (it ()), it_ (it.it_) {}
|
---|
| 1288 |
|
---|
| 1289 | // Arithmetic
|
---|
| 1290 | BOOST_UBLAS_INLINE
|
---|
| 1291 | const_iterator &operator ++ () {
|
---|
| 1292 | ++ it_;
|
---|
| 1293 | return *this;
|
---|
| 1294 | }
|
---|
| 1295 | BOOST_UBLAS_INLINE
|
---|
| 1296 | const_iterator &operator -- () {
|
---|
| 1297 | -- it_;
|
---|
| 1298 | return *this;
|
---|
| 1299 | }
|
---|
| 1300 | BOOST_UBLAS_INLINE
|
---|
| 1301 | const_iterator &operator += (difference_type n) {
|
---|
| 1302 | it_ += n;
|
---|
| 1303 | return *this;
|
---|
| 1304 | }
|
---|
| 1305 | BOOST_UBLAS_INLINE
|
---|
| 1306 | const_iterator &operator -= (difference_type n) {
|
---|
| 1307 | it_ -= n;
|
---|
| 1308 | return *this;
|
---|
| 1309 | }
|
---|
| 1310 | BOOST_UBLAS_INLINE
|
---|
| 1311 | difference_type operator - (const const_iterator &it) const {
|
---|
| 1312 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 1313 | return it_ - it.it_;
|
---|
| 1314 | }
|
---|
| 1315 |
|
---|
| 1316 | // Dereference
|
---|
| 1317 | BOOST_UBLAS_INLINE
|
---|
| 1318 | const_reference operator * () const {
|
---|
| 1319 | // FIXME replace find with at_element
|
---|
| 1320 | BOOST_UBLAS_CHECK (index () < (*this) ().size (), bad_index ());
|
---|
| 1321 | return (*this) ().data_ (*it_);
|
---|
| 1322 | }
|
---|
| 1323 |
|
---|
| 1324 | // Index
|
---|
| 1325 | BOOST_UBLAS_INLINE
|
---|
| 1326 | size_type index () const {
|
---|
| 1327 | return it_.index ();
|
---|
| 1328 | }
|
---|
| 1329 |
|
---|
| 1330 | // Assignment
|
---|
| 1331 | BOOST_UBLAS_INLINE
|
---|
| 1332 | const_iterator &operator = (const const_iterator &it) {
|
---|
| 1333 | container_const_reference<self_type>::assign (&it ());
|
---|
| 1334 | it_ = it.it_;
|
---|
| 1335 | return *this;
|
---|
| 1336 | }
|
---|
| 1337 |
|
---|
| 1338 | // Comparison
|
---|
| 1339 | BOOST_UBLAS_INLINE
|
---|
| 1340 | bool operator == (const const_iterator &it) const {
|
---|
| 1341 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 1342 | return it_ == it.it_;
|
---|
| 1343 | }
|
---|
| 1344 | BOOST_UBLAS_INLINE
|
---|
| 1345 | bool operator < (const const_iterator &it) const {
|
---|
| 1346 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 1347 | return it_ < it.it_;
|
---|
| 1348 | }
|
---|
| 1349 |
|
---|
| 1350 | private:
|
---|
| 1351 | const_subiterator_type it_;
|
---|
| 1352 | };
|
---|
| 1353 | #endif
|
---|
| 1354 |
|
---|
| 1355 | BOOST_UBLAS_INLINE
|
---|
| 1356 | const_iterator begin () const {
|
---|
| 1357 | return find (0);
|
---|
| 1358 | }
|
---|
| 1359 | BOOST_UBLAS_INLINE
|
---|
| 1360 | const_iterator end () const {
|
---|
| 1361 | return find (size ());
|
---|
| 1362 | }
|
---|
| 1363 |
|
---|
| 1364 | #ifndef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 1365 | class iterator:
|
---|
| 1366 | public container_reference<vector_indirect>,
|
---|
| 1367 | public iterator_base_traits<typename V::iterator::iterator_category>::template
|
---|
| 1368 | iterator_base<iterator, value_type>::type {
|
---|
| 1369 | public:
|
---|
| 1370 | typedef typename V::iterator::difference_type difference_type;
|
---|
| 1371 | typedef typename V::iterator::value_type value_type;
|
---|
| 1372 | typedef typename V::reference reference; //FIXME due to indexing access
|
---|
| 1373 | typedef typename V::iterator::pointer pointer;
|
---|
| 1374 |
|
---|
| 1375 | // Construction and destruction
|
---|
| 1376 | BOOST_UBLAS_INLINE
|
---|
| 1377 | iterator ():
|
---|
| 1378 | container_reference<self_type> (), it_ () {}
|
---|
| 1379 | BOOST_UBLAS_INLINE
|
---|
| 1380 | iterator (self_type &vi, const subiterator_type &it):
|
---|
| 1381 | container_reference<self_type> (vi), it_ (it) {}
|
---|
| 1382 |
|
---|
| 1383 | // Arithmetic
|
---|
| 1384 | BOOST_UBLAS_INLINE
|
---|
| 1385 | iterator &operator ++ () {
|
---|
| 1386 | ++ it_;
|
---|
| 1387 | return *this;
|
---|
| 1388 | }
|
---|
| 1389 | BOOST_UBLAS_INLINE
|
---|
| 1390 | iterator &operator -- () {
|
---|
| 1391 | -- it_;
|
---|
| 1392 | return *this;
|
---|
| 1393 | }
|
---|
| 1394 | BOOST_UBLAS_INLINE
|
---|
| 1395 | iterator &operator += (difference_type n) {
|
---|
| 1396 | it_ += n;
|
---|
| 1397 | return *this;
|
---|
| 1398 | }
|
---|
| 1399 | BOOST_UBLAS_INLINE
|
---|
| 1400 | iterator &operator -= (difference_type n) {
|
---|
| 1401 | it_ -= n;
|
---|
| 1402 | return *this;
|
---|
| 1403 | }
|
---|
| 1404 | BOOST_UBLAS_INLINE
|
---|
| 1405 | difference_type operator - (const iterator &it) const {
|
---|
| 1406 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 1407 | return it_ - it.it_;
|
---|
| 1408 | }
|
---|
| 1409 |
|
---|
| 1410 | // Dereference
|
---|
| 1411 | BOOST_UBLAS_INLINE
|
---|
| 1412 | reference operator * () const {
|
---|
| 1413 | // FIXME replace find with at_element
|
---|
| 1414 | BOOST_UBLAS_CHECK (index () < (*this) ().size (), bad_index ());
|
---|
| 1415 | return (*this) ().data_ (*it_);
|
---|
| 1416 | }
|
---|
| 1417 |
|
---|
| 1418 | // Index
|
---|
| 1419 | BOOST_UBLAS_INLINE
|
---|
| 1420 | size_type index () const {
|
---|
| 1421 | return it_.index ();
|
---|
| 1422 | }
|
---|
| 1423 |
|
---|
| 1424 | // Assignment
|
---|
| 1425 | BOOST_UBLAS_INLINE
|
---|
| 1426 | iterator &operator = (const iterator &it) {
|
---|
| 1427 | container_reference<self_type>::assign (&it ());
|
---|
| 1428 | it_ = it.it_;
|
---|
| 1429 | return *this;
|
---|
| 1430 | }
|
---|
| 1431 |
|
---|
| 1432 | // Comparison
|
---|
| 1433 | BOOST_UBLAS_INLINE
|
---|
| 1434 | bool operator == (const iterator &it) const {
|
---|
| 1435 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 1436 | return it_ == it.it_;
|
---|
| 1437 | }
|
---|
| 1438 | BOOST_UBLAS_INLINE
|
---|
| 1439 | bool operator < (const iterator &it) const {
|
---|
| 1440 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 1441 | return it_ < it.it_;
|
---|
| 1442 | }
|
---|
| 1443 |
|
---|
| 1444 | private:
|
---|
| 1445 | subiterator_type it_;
|
---|
| 1446 |
|
---|
| 1447 | friend class const_iterator;
|
---|
| 1448 | };
|
---|
| 1449 | #endif
|
---|
| 1450 |
|
---|
| 1451 | BOOST_UBLAS_INLINE
|
---|
| 1452 | iterator begin () {
|
---|
| 1453 | return find (0);
|
---|
| 1454 | }
|
---|
| 1455 | BOOST_UBLAS_INLINE
|
---|
| 1456 | iterator end () {
|
---|
| 1457 | return find (size ());
|
---|
| 1458 | }
|
---|
| 1459 |
|
---|
| 1460 | // Reverse iterator
|
---|
| 1461 | typedef reverse_iterator_base<const_iterator> const_reverse_iterator;
|
---|
| 1462 | typedef reverse_iterator_base<iterator> reverse_iterator;
|
---|
| 1463 |
|
---|
| 1464 | BOOST_UBLAS_INLINE
|
---|
| 1465 | const_reverse_iterator rbegin () const {
|
---|
| 1466 | return const_reverse_iterator (end ());
|
---|
| 1467 | }
|
---|
| 1468 | BOOST_UBLAS_INLINE
|
---|
| 1469 | const_reverse_iterator rend () const {
|
---|
| 1470 | return const_reverse_iterator (begin ());
|
---|
| 1471 | }
|
---|
| 1472 | BOOST_UBLAS_INLINE
|
---|
| 1473 | reverse_iterator rbegin () {
|
---|
| 1474 | return reverse_iterator (end ());
|
---|
| 1475 | }
|
---|
| 1476 | BOOST_UBLAS_INLINE
|
---|
| 1477 | reverse_iterator rend () {
|
---|
| 1478 | return reverse_iterator (begin ());
|
---|
| 1479 | }
|
---|
| 1480 |
|
---|
| 1481 | private:
|
---|
| 1482 | vector_closure_type data_;
|
---|
| 1483 | indirect_array_type ia_;
|
---|
| 1484 | };
|
---|
| 1485 |
|
---|
| 1486 | // Projections
|
---|
| 1487 | template<class V, class A>
|
---|
| 1488 | BOOST_UBLAS_INLINE
|
---|
| 1489 | vector_indirect<V, indirect_array<A> > project (V &data, const indirect_array<A> &ia) {
|
---|
| 1490 | return vector_indirect<V, indirect_array<A> > (data, ia);
|
---|
| 1491 | }
|
---|
| 1492 | template<class V, class A>
|
---|
| 1493 | BOOST_UBLAS_INLINE
|
---|
| 1494 | const vector_indirect<const V, indirect_array<A> > project (const V &data, const indirect_array<A> &ia) {
|
---|
| 1495 | // ISSUE was: return vector_indirect<V, indirect_array<A> > (const_cast<V &> (data), ia)
|
---|
| 1496 | return vector_indirect<const V, indirect_array<A> > (data, ia);
|
---|
| 1497 | }
|
---|
| 1498 | template<class V, class IA>
|
---|
| 1499 | BOOST_UBLAS_INLINE
|
---|
| 1500 | vector_indirect<V, IA> project (vector_indirect<V, IA> &data, const typename vector_indirect<V, IA>::range_type &r) {
|
---|
| 1501 | return data.project (r);
|
---|
| 1502 | }
|
---|
| 1503 | template<class V, class IA>
|
---|
| 1504 | BOOST_UBLAS_INLINE
|
---|
| 1505 | const vector_indirect<V, IA> project (const vector_indirect<V, IA> &data, const typename vector_indirect<V, IA>::range_type &r) {
|
---|
| 1506 | return data.project (r);
|
---|
| 1507 | }
|
---|
| 1508 | template<class V, class IA>
|
---|
| 1509 | BOOST_UBLAS_INLINE
|
---|
| 1510 | vector_indirect<V, IA> project (vector_indirect<V, IA> &data, const typename vector_indirect<V, IA>::slice_type &s) {
|
---|
| 1511 | return data.project (s);
|
---|
| 1512 | }
|
---|
| 1513 | template<class V, class IA>
|
---|
| 1514 | BOOST_UBLAS_INLINE
|
---|
| 1515 | const vector_indirect<V, IA> project (const vector_indirect<V, IA> &data, const typename vector_indirect<V, IA>::slice_type &s) {
|
---|
| 1516 | return data.project (s);
|
---|
| 1517 | }
|
---|
| 1518 | template<class V, class A>
|
---|
| 1519 | BOOST_UBLAS_INLINE
|
---|
| 1520 | vector_indirect<V, indirect_array<A> > project (vector_indirect<V, indirect_array<A> > &data, const indirect_array<A> &ia) {
|
---|
| 1521 | return data.project (ia);
|
---|
| 1522 | }
|
---|
| 1523 | template<class V, class A>
|
---|
| 1524 | BOOST_UBLAS_INLINE
|
---|
| 1525 | const vector_indirect<V, indirect_array<A> > project (const vector_indirect<V, indirect_array<A> > &data, const indirect_array<A> &ia) {
|
---|
| 1526 | return data.project (ia);
|
---|
| 1527 | }
|
---|
| 1528 |
|
---|
| 1529 | // Specialization of temporary_traits
|
---|
| 1530 | template <class V>
|
---|
| 1531 | struct vector_temporary_traits< vector_indirect<V> >
|
---|
| 1532 | : vector_temporary_traits< V > {} ;
|
---|
| 1533 |
|
---|
| 1534 | }}}
|
---|
| 1535 |
|
---|
| 1536 | #endif
|
---|