[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_EXPRESSION_
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| 18 | #define _BOOST_UBLAS_VECTOR_EXPRESSION_
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| 19 |
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| 20 | #include <boost/numeric/ublas/expression_types.hpp>
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| 21 |
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| 22 |
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| 23 | // Expression templates based on ideas of Todd Veldhuizen and Geoffrey Furnish
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| 24 | // Iterators based on ideas of Jeremy Siek
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| 25 | //
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| 26 | // Classes that model the Vector Expression concept
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| 27 |
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| 28 | namespace boost { namespace numeric { namespace ublas {
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| 29 |
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| 30 | template<class E>
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| 31 | class vector_reference:
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| 32 | public vector_expression<vector_reference<E> > {
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| 33 |
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| 34 | typedef vector_reference<E> self_type;
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| 35 | public:
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| 36 | #ifdef BOOST_UBLAS_ENABLE_PROXY_SHORTCUTS
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| 37 | using vector_expression<vector_reference<E> >::operator ();
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| 38 | #endif
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| 39 | typedef typename E::size_type size_type;
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| 40 | typedef typename E::difference_type difference_type;
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| 41 | typedef typename E::value_type value_type;
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| 42 | typedef typename E::const_reference const_reference;
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| 43 | typedef typename boost::mpl::if_<boost::is_const<E>,
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| 44 | typename E::const_reference,
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| 45 | typename E::reference>::type reference;
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| 46 | typedef E refered_type;
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| 47 | typedef const self_type const_closure_type;
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| 48 | typedef const_closure_type closure_type;
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| 49 | typedef typename E::storage_category storage_category;
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| 50 |
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| 51 | // Construction and destruction
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| 52 | BOOST_UBLAS_INLINE
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| 53 | explicit vector_reference (refered_type &e):
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| 54 | e_ (e) {}
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| 55 |
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| 56 | // Accessors
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| 57 | BOOST_UBLAS_INLINE
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| 58 | size_type size () const {
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| 59 | return expression ().size ();
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| 60 | }
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| 61 |
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| 62 | public:
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| 63 | // Expression accessors - const correct
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| 64 | BOOST_UBLAS_INLINE
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| 65 | const refered_type &expression () const {
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| 66 | return e_;
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| 67 | }
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| 68 | BOOST_UBLAS_INLINE
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| 69 | refered_type &expression () {
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| 70 | return e_;
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| 71 | }
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| 72 |
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| 73 | public:
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| 74 | // Element access
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| 75 | #ifndef BOOST_UBLAS_REFERENCE_CONST_MEMBER
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| 76 | BOOST_UBLAS_INLINE
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| 77 | const_reference operator () (size_type i) const {
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| 78 | return expression () (i);
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| 79 | }
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| 80 | BOOST_UBLAS_INLINE
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| 81 | reference operator () (size_type i) {
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| 82 | return expression () (i);
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| 83 | }
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| 84 |
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| 85 | BOOST_UBLAS_INLINE
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| 86 | const_reference operator [] (size_type i) const {
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| 87 | return expression () [i];
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| 88 | }
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| 89 | BOOST_UBLAS_INLINE
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| 90 | reference operator [] (size_type i) {
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| 91 | return expression () [i];
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| 92 | }
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| 93 | #else
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| 94 | BOOST_UBLAS_INLINE
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| 95 | reference operator () (size_type i) const {
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| 96 | return expression () (i);
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| 97 | }
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| 98 |
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| 99 | BOOST_UBLAS_INLINE
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| 100 | reference operator [] (size_type i) const {
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| 101 | return expression () [i];
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| 102 | }
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| 103 | #endif
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| 104 |
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| 105 | // Assignment
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| 106 | BOOST_UBLAS_INLINE
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| 107 | vector_reference &operator = (const vector_reference &v) {
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| 108 | expression ().operator = (v);
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| 109 | return *this;
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| 110 | }
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| 111 | template<class AE>
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| 112 | BOOST_UBLAS_INLINE
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| 113 | vector_reference &operator = (const vector_expression<AE> &ae) {
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| 114 | expression ().operator = (ae);
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| 115 | return *this;
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| 116 | }
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| 117 | template<class AE>
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| 118 | BOOST_UBLAS_INLINE
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| 119 | vector_reference &assign (const vector_expression<AE> &ae) {
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| 120 | expression ().assign (ae);
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| 121 | return *this;
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| 122 | }
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| 123 | template<class AE>
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| 124 | BOOST_UBLAS_INLINE
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| 125 | vector_reference &operator += (const vector_expression<AE> &ae) {
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| 126 | expression ().operator += (ae);
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| 127 | return *this;
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| 128 | }
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| 129 | template<class AE>
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| 130 | BOOST_UBLAS_INLINE
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| 131 | vector_reference &plus_assign (const vector_expression<AE> &ae) {
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| 132 | expression ().plus_assign (ae);
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| 133 | return *this;
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| 134 | }
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| 135 | template<class AE>
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| 136 | BOOST_UBLAS_INLINE
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| 137 | vector_reference &operator -= (const vector_expression<AE> &ae) {
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| 138 | expression ().operator -= (ae);
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| 139 | return *this;
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| 140 | }
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| 141 | template<class AE>
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| 142 | BOOST_UBLAS_INLINE
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| 143 | vector_reference &minus_assign (const vector_expression<AE> &ae) {
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| 144 | expression ().minus_assign (ae);
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| 145 | return *this;
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| 146 | }
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| 147 | template<class AT>
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| 148 | BOOST_UBLAS_INLINE
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| 149 | vector_reference &operator *= (const AT &at) {
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| 150 | expression ().operator *= (at);
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| 151 | return *this;
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| 152 | }
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| 153 | template<class AT>
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| 154 | BOOST_UBLAS_INLINE
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| 155 | vector_reference &operator /= (const AT &at) {
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| 156 | expression ().operator /= (at);
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| 157 | return *this;
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| 158 | }
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| 159 |
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| 160 | // Swapping
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| 161 | BOOST_UBLAS_INLINE
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| 162 | void swap (vector_reference &v) {
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| 163 | expression ().swap (v.expression ());
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| 164 | }
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| 165 |
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| 166 | // Closure comparison
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| 167 | BOOST_UBLAS_INLINE
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| 168 | bool same_closure (const vector_reference &vr) const {
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| 169 | return &(*this).e_ == &vr.e_;
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| 170 | }
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| 171 |
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| 172 | // Iterator types
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| 173 | typedef typename E::const_iterator const_iterator;
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| 174 | typedef typename boost::mpl::if_<boost::is_const<E>,
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| 175 | typename E::const_iterator,
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| 176 | typename E::iterator>::type iterator;
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| 177 |
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| 178 | // Element lookup
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| 179 | BOOST_UBLAS_INLINE
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| 180 | const_iterator find (size_type i) const {
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| 181 | return expression ().find (i);
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| 182 | }
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| 183 | BOOST_UBLAS_INLINE
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| 184 | iterator find (size_type i) {
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| 185 | return expression ().find (i);
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| 186 | }
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| 187 |
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| 188 | // Iterator is the iterator of the referenced expression.
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| 189 |
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| 190 | BOOST_UBLAS_INLINE
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| 191 | const_iterator begin () const {
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| 192 | return expression ().begin ();
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| 193 | }
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| 194 | BOOST_UBLAS_INLINE
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| 195 | const_iterator end () const {
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| 196 | return expression ().end ();
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| 197 | }
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| 198 |
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| 199 | BOOST_UBLAS_INLINE
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| 200 | iterator begin () {
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| 201 | return expression ().begin ();
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| 202 | }
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| 203 | BOOST_UBLAS_INLINE
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| 204 | iterator end () {
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| 205 | return expression ().end ();
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| 206 | }
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| 207 |
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| 208 | // Reverse iterator
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| 209 | typedef reverse_iterator_base<const_iterator> const_reverse_iterator;
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| 210 | typedef reverse_iterator_base<iterator> reverse_iterator;
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| 211 |
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| 212 | BOOST_UBLAS_INLINE
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| 213 | const_reverse_iterator rbegin () const {
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| 214 | return const_reverse_iterator (end ());
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| 215 | }
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| 216 | BOOST_UBLAS_INLINE
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| 217 | const_reverse_iterator rend () const {
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| 218 | return const_reverse_iterator (begin ());
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| 219 | }
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| 220 | BOOST_UBLAS_INLINE
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| 221 | reverse_iterator rbegin () {
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| 222 | return reverse_iterator (end ());
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| 223 | }
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| 224 | BOOST_UBLAS_INLINE
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| 225 | reverse_iterator rend () {
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| 226 | return reverse_iterator (begin ());
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| 227 | }
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| 228 |
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| 229 | private:
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| 230 | refered_type &e_;
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| 231 | };
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| 232 |
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| 233 |
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| 234 | template<class E, class F>
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| 235 | class vector_unary:
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| 236 | public vector_expression<vector_unary<E, F> > {
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| 237 |
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| 238 | typedef F functor_type;
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| 239 | typedef typename boost::mpl::if_<boost::is_same<F, scalar_identity<typename E::value_type> >,
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| 240 | E,
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| 241 | const E>::type expression_type;
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| 242 | typedef typename boost::mpl::if_<boost::is_const<expression_type>,
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| 243 | typename E::const_closure_type,
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| 244 | typename E::closure_type>::type expression_closure_type;
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| 245 | typedef vector_unary<E, F> self_type;
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| 246 | public:
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| 247 | #ifdef BOOST_UBLAS_ENABLE_PROXY_SHORTCUTS
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| 248 | using vector_expression<vector_unary<E, F> >::operator ();
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| 249 | #endif
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| 250 | typedef typename E::size_type size_type;
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| 251 | typedef typename E::difference_type difference_type;
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| 252 | typedef typename F::result_type value_type;
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| 253 | typedef value_type const_reference;
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| 254 | typedef typename boost::mpl::if_<boost::is_same<F, scalar_identity<value_type> >,
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| 255 | typename E::reference,
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| 256 | value_type>::type reference;
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| 257 | typedef const self_type const_closure_type;
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| 258 | typedef self_type closure_type;
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| 259 | typedef unknown_storage_tag storage_category;
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| 260 |
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| 261 | // Construction and destruction
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| 262 | BOOST_UBLAS_INLINE
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| 263 | // May be used as mutable expression.
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| 264 | explicit vector_unary (expression_type &e):
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| 265 | e_ (e) {}
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| 266 |
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| 267 | // Accessors
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| 268 | BOOST_UBLAS_INLINE
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| 269 | size_type size () const {
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| 270 | return e_.size ();
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| 271 | }
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| 272 |
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| 273 | public:
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| 274 | // Expression accessors
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| 275 | BOOST_UBLAS_INLINE
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| 276 | const expression_closure_type &expression () const {
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| 277 | return e_;
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| 278 | }
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| 279 |
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| 280 | public:
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| 281 | // Element access
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| 282 | BOOST_UBLAS_INLINE
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| 283 | const_reference operator () (size_type i) const {
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| 284 | return functor_type::apply (e_ (i));
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| 285 | }
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| 286 | BOOST_UBLAS_INLINE
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| 287 | reference operator () (size_type i) {
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| 288 | BOOST_STATIC_ASSERT ((boost::is_same<functor_type, scalar_identity<value_type > >::value));
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| 289 | return e_ (i);
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| 290 | }
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| 291 |
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| 292 | BOOST_UBLAS_INLINE
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| 293 | const_reference operator [] (size_type i) const {
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| 294 | return functor_type::apply (e_ [i]);
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| 295 | }
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| 296 | BOOST_UBLAS_INLINE
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| 297 | reference operator [] (size_type i) {
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| 298 | BOOST_STATIC_ASSERT ((boost::is_same<functor_type, scalar_identity<value_type > >::value));
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| 299 | return e_ [i];
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| 300 | }
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| 301 |
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| 302 | // Closure comparison
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| 303 | BOOST_UBLAS_INLINE
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| 304 | bool same_closure (const vector_unary &vu) const {
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| 305 | return (*this).expression ().same_closure (vu.expression ());
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| 306 | }
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| 307 |
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| 308 | // Iterator types
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| 309 | private:
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| 310 | typedef typename E::const_iterator const_subiterator_type;
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| 311 | typedef const value_type *const_pointer;
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| 312 |
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| 313 | public:
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| 314 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
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| 315 | typedef indexed_const_iterator<const_closure_type, typename const_subiterator_type::iterator_category> const_iterator;
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| 316 | typedef const_iterator iterator;
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| 317 | #else
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| 318 | class const_iterator;
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| 319 | typedef const_iterator iterator;
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| 320 | #endif
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| 321 |
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| 322 | // Element lookup
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| 323 | BOOST_UBLAS_INLINE
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| 324 | const_iterator find (size_type i) const {
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| 325 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
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| 326 | const_subiterator_type it (e_.find (i));
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| 327 | return const_iterator (*this, it.index ());
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| 328 | #else
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| 329 | return const_iterator (*this, e_.find (i));
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| 330 | #endif
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| 331 | }
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| 332 |
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| 333 | // Iterator enhances the iterator of the referenced expression
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| 334 | // with the unary functor.
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| 335 |
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| 336 | #ifndef BOOST_UBLAS_USE_INDEXED_ITERATOR
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| 337 | class const_iterator:
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| 338 | public container_const_reference<vector_unary>,
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| 339 | public iterator_base_traits<typename E::const_iterator::iterator_category>::template
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| 340 | iterator_base<const_iterator, value_type>::type {
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| 341 | public:
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| 342 | typedef typename E::const_iterator::iterator_category iterator_category;
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| 343 | typedef typename vector_unary::difference_type difference_type;
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| 344 | typedef typename vector_unary::value_type value_type;
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| 345 | typedef typename vector_unary::const_reference reference;
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| 346 | typedef typename vector_unary::const_pointer pointer;
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| 347 |
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| 348 | // Construction and destruction
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| 349 | BOOST_UBLAS_INLINE
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| 350 | const_iterator ():
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| 351 | container_const_reference<self_type> (), it_ () {}
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| 352 | BOOST_UBLAS_INLINE
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| 353 | const_iterator (const self_type &vu, const const_subiterator_type &it):
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| 354 | container_const_reference<self_type> (vu), it_ (it) {}
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| 355 |
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| 356 | // Arithmetic
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| 357 | BOOST_UBLAS_INLINE
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| 358 | const_iterator &operator ++ () {
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| 359 | ++ it_;
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| 360 | return *this;
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| 361 | }
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| 362 | BOOST_UBLAS_INLINE
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| 363 | const_iterator &operator -- () {
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| 364 | -- it_;
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| 365 | return *this;
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| 366 | }
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| 367 | BOOST_UBLAS_INLINE
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| 368 | const_iterator &operator += (difference_type n) {
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| 369 | it_ += n;
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| 370 | return *this;
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| 371 | }
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| 372 | BOOST_UBLAS_INLINE
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| 373 | const_iterator &operator -= (difference_type n) {
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| 374 | it_ -= n;
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| 375 | return *this;
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| 376 | }
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| 377 | BOOST_UBLAS_INLINE
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| 378 | difference_type operator - (const const_iterator &it) const {
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| 379 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
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| 380 | return it_ - it.it_;
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| 381 | }
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| 382 |
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| 383 | // Dereference
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| 384 | BOOST_UBLAS_INLINE
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| 385 | const_reference operator * () const {
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| 386 | return functor_type::apply (*it_);
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| 387 | }
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| 388 |
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| 389 | // Index
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| 390 | BOOST_UBLAS_INLINE
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| 391 | size_type index () const {
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| 392 | return it_.index ();
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| 393 | }
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| 394 |
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| 395 | // Assignment
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| 396 | BOOST_UBLAS_INLINE
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| 397 | const_iterator &operator = (const const_iterator &it) {
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| 398 | container_const_reference<self_type>::assign (&it ());
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| 399 | it_ = it.it_;
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| 400 | return *this;
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| 401 | }
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| 402 |
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| 403 | // Comparison
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| 404 | BOOST_UBLAS_INLINE
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| 405 | bool operator == (const const_iterator &it) const {
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| 406 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
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| 407 | return it_ == it.it_;
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| 408 | }
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| 409 | BOOST_UBLAS_INLINE
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| 410 | bool operator < (const const_iterator &it) const {
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| 411 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
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| 412 | return it_ < it.it_;
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| 413 | }
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| 414 |
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| 415 | private:
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| 416 | const_subiterator_type it_;
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| 417 | };
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| 418 | #endif
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| 419 |
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| 420 | BOOST_UBLAS_INLINE
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| 421 | const_iterator begin () const {
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| 422 | return find (0);
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| 423 | }
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| 424 | BOOST_UBLAS_INLINE
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| 425 | const_iterator end () const {
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| 426 | return find (size ());
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| 427 | }
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| 428 |
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| 429 | // Reverse iterator
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| 430 | typedef reverse_iterator_base<const_iterator> const_reverse_iterator;
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| 431 |
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| 432 | BOOST_UBLAS_INLINE
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| 433 | const_reverse_iterator rbegin () const {
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| 434 | return const_reverse_iterator (end ());
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| 435 | }
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| 436 | BOOST_UBLAS_INLINE
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| 437 | const_reverse_iterator rend () const {
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| 438 | return const_reverse_iterator (begin ());
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| 439 | }
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| 440 |
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| 441 | private:
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| 442 | expression_closure_type e_;
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| 443 | };
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| 444 |
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| 445 | template<class E, class F>
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| 446 | struct vector_unary_traits {
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| 447 | typedef vector_unary<E, F> expression_type;
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| 448 | //FIXME
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| 449 | // #ifndef BOOST_UBLAS_SIMPLE_ET_DEBUG
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| 450 | typedef expression_type result_type;
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| 451 | // #else
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| 452 | // typedef typename E::vector_temporary_type result_type;
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| 453 | // #endif
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| 454 | };
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| 455 |
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| 456 | // (- v) [i] = - v [i]
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| 457 | template<class E>
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| 458 | BOOST_UBLAS_INLINE
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| 459 | typename vector_unary_traits<E, scalar_negate<typename E::value_type> >::result_type
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| 460 | operator - (const vector_expression<E> &e) {
|
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| 461 | typedef typename vector_unary_traits<E, scalar_negate<typename E::value_type> >::expression_type expression_type;
|
---|
| 462 | return expression_type (e ());
|
---|
| 463 | }
|
---|
| 464 |
|
---|
| 465 | // (conj v) [i] = conj (v [i])
|
---|
| 466 | template<class E>
|
---|
| 467 | BOOST_UBLAS_INLINE
|
---|
| 468 | typename vector_unary_traits<E, scalar_conj<typename E::value_type> >::result_type
|
---|
| 469 | conj (const vector_expression<E> &e) {
|
---|
| 470 | typedef typename vector_unary_traits<E, scalar_conj<typename E::value_type> >::expression_type expression_type;
|
---|
| 471 | return expression_type (e ());
|
---|
| 472 | }
|
---|
| 473 |
|
---|
| 474 | // (real v) [i] = real (v [i])
|
---|
| 475 | template<class E>
|
---|
| 476 | BOOST_UBLAS_INLINE
|
---|
| 477 | typename vector_unary_traits<E, scalar_real<typename E::value_type> >::result_type
|
---|
| 478 | real (const vector_expression<E> &e) {
|
---|
| 479 | typedef typename vector_unary_traits<E, scalar_real<typename E::value_type> >::expression_type expression_type;
|
---|
| 480 | return expression_type (e ());
|
---|
| 481 | }
|
---|
| 482 |
|
---|
| 483 | // (imag v) [i] = imag (v [i])
|
---|
| 484 | template<class E>
|
---|
| 485 | BOOST_UBLAS_INLINE
|
---|
| 486 | typename vector_unary_traits<E, scalar_imag<typename E::value_type> >::result_type
|
---|
| 487 | imag (const vector_expression<E> &e) {
|
---|
| 488 | typedef typename vector_unary_traits<E, scalar_imag<typename E::value_type> >::expression_type expression_type;
|
---|
| 489 | return expression_type (e ());
|
---|
| 490 | }
|
---|
| 491 |
|
---|
| 492 | // (trans v) [i] = v [i]
|
---|
| 493 | template<class E>
|
---|
| 494 | BOOST_UBLAS_INLINE
|
---|
| 495 | typename vector_unary_traits<const E, scalar_identity<typename E::value_type> >::result_type
|
---|
| 496 | trans (const vector_expression<E> &e) {
|
---|
| 497 | typedef typename vector_unary_traits<const E, scalar_identity<typename E::value_type> >::expression_type expression_type;
|
---|
| 498 | return expression_type (e ());
|
---|
| 499 | }
|
---|
| 500 | template<class E>
|
---|
| 501 | BOOST_UBLAS_INLINE
|
---|
| 502 | typename vector_unary_traits<E, scalar_identity<typename E::value_type> >::result_type
|
---|
| 503 | trans (vector_expression<E> &e) {
|
---|
| 504 | typedef typename vector_unary_traits<E, scalar_identity<typename E::value_type> >::expression_type expression_type;
|
---|
| 505 | return expression_type (e ());
|
---|
| 506 | }
|
---|
| 507 |
|
---|
| 508 | // (herm v) [i] = conj (v [i])
|
---|
| 509 | template<class E>
|
---|
| 510 | BOOST_UBLAS_INLINE
|
---|
| 511 | typename vector_unary_traits<E, scalar_conj<typename E::value_type> >::result_type
|
---|
| 512 | herm (const vector_expression<E> &e) {
|
---|
| 513 | typedef typename vector_unary_traits<E, scalar_conj<typename E::value_type> >::expression_type expression_type;
|
---|
| 514 | return expression_type (e ());
|
---|
| 515 | }
|
---|
| 516 |
|
---|
| 517 | template<class E1, class E2, class F>
|
---|
| 518 | class vector_binary:
|
---|
| 519 | public vector_expression<vector_binary<E1, E2, F> > {
|
---|
| 520 |
|
---|
| 521 | typedef E1 expression1_type;
|
---|
| 522 | typedef E2 expression2_type;
|
---|
| 523 | typedef F functor_type;
|
---|
| 524 | typedef typename E1::const_closure_type expression1_closure_type;
|
---|
| 525 | typedef typename E2::const_closure_type expression2_closure_type;
|
---|
| 526 | typedef vector_binary<E1, E2, F> self_type;
|
---|
| 527 | public:
|
---|
| 528 | #ifdef BOOST_UBLAS_ENABLE_PROXY_SHORTCUTS
|
---|
| 529 | using vector_expression<vector_binary<E1, E2, F> >::operator ();
|
---|
| 530 | #endif
|
---|
| 531 | typedef typename promote_traits<typename E1::size_type, typename E2::size_type>::promote_type size_type;
|
---|
| 532 | typedef typename promote_traits<typename E1::difference_type, typename E2::difference_type>::promote_type difference_type;
|
---|
| 533 | typedef typename F::result_type value_type;
|
---|
| 534 | typedef value_type const_reference;
|
---|
| 535 | typedef const_reference reference;
|
---|
| 536 | typedef const self_type const_closure_type;
|
---|
| 537 | typedef const_closure_type closure_type;
|
---|
| 538 | typedef unknown_storage_tag storage_category;
|
---|
| 539 |
|
---|
| 540 | // Construction and destruction
|
---|
| 541 | BOOST_UBLAS_INLINE
|
---|
| 542 | vector_binary (const expression1_type &e1, const expression2_type &e2):
|
---|
| 543 | e1_ (e1), e2_ (e2) {}
|
---|
| 544 |
|
---|
| 545 | // Accessors
|
---|
| 546 | BOOST_UBLAS_INLINE
|
---|
| 547 | size_type size () const {
|
---|
| 548 | return BOOST_UBLAS_SAME (e1_.size (), e2_.size ());
|
---|
| 549 | }
|
---|
| 550 |
|
---|
| 551 | private:
|
---|
| 552 | // Accessors
|
---|
| 553 | BOOST_UBLAS_INLINE
|
---|
| 554 | const expression1_closure_type &expression1 () const {
|
---|
| 555 | return e1_;
|
---|
| 556 | }
|
---|
| 557 | BOOST_UBLAS_INLINE
|
---|
| 558 | const expression2_closure_type &expression2 () const {
|
---|
| 559 | return e2_;
|
---|
| 560 | }
|
---|
| 561 |
|
---|
| 562 | public:
|
---|
| 563 | // Element access
|
---|
| 564 | BOOST_UBLAS_INLINE
|
---|
| 565 | const_reference operator () (size_type i) const {
|
---|
| 566 | return functor_type::apply (e1_ (i), e2_ (i));
|
---|
| 567 | }
|
---|
| 568 |
|
---|
| 569 | BOOST_UBLAS_INLINE
|
---|
| 570 | const_reference operator [] (size_type i) const {
|
---|
| 571 | return functor_type::apply (e1_ [i], e2_ [i]);
|
---|
| 572 | }
|
---|
| 573 |
|
---|
| 574 | // Closure comparison
|
---|
| 575 | BOOST_UBLAS_INLINE
|
---|
| 576 | bool same_closure (const vector_binary &vb) const {
|
---|
| 577 | return (*this).expression1 ().same_closure (vb.expression1 ()) &&
|
---|
| 578 | (*this).expression2 ().same_closure (vb.expression2 ());
|
---|
| 579 | }
|
---|
| 580 |
|
---|
| 581 | // Iterator types
|
---|
| 582 | private:
|
---|
| 583 | typedef typename E1::const_iterator const_subiterator1_type;
|
---|
| 584 | typedef typename E2::const_iterator const_subiterator2_type;
|
---|
| 585 | typedef const value_type *const_pointer;
|
---|
| 586 |
|
---|
| 587 | public:
|
---|
| 588 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 589 | typedef typename iterator_restrict_traits<typename const_subiterator1_type::iterator_category,
|
---|
| 590 | typename const_subiterator2_type::iterator_category>::iterator_category iterator_category;
|
---|
| 591 | typedef indexed_const_iterator<const_closure_type, iterator_category> const_iterator;
|
---|
| 592 | typedef const_iterator iterator;
|
---|
| 593 | #else
|
---|
| 594 | class const_iterator;
|
---|
| 595 | typedef const_iterator iterator;
|
---|
| 596 | #endif
|
---|
| 597 |
|
---|
| 598 | // Element lookup
|
---|
| 599 | BOOST_UBLAS_INLINE
|
---|
| 600 | const_iterator find (size_type i) const {
|
---|
| 601 | const_subiterator1_type it1 (e1_.find (i));
|
---|
| 602 | const_subiterator1_type it1_end (e1_.find (size ()));
|
---|
| 603 | const_subiterator2_type it2 (e2_.find (i));
|
---|
| 604 | const_subiterator2_type it2_end (e2_.find (size ()));
|
---|
| 605 | i = (std::min) (it1 != it1_end ? it1.index () : size (),
|
---|
| 606 | it2 != it2_end ? it2.index () : size ());
|
---|
| 607 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 608 | return const_iterator (*this, i);
|
---|
| 609 | #else
|
---|
| 610 | return const_iterator (*this, i, it1, it1_end, it2, it2_end);
|
---|
| 611 | #endif
|
---|
| 612 | }
|
---|
| 613 |
|
---|
| 614 | // Iterator merges the iterators of the referenced expressions and
|
---|
| 615 | // enhances them with the binary functor.
|
---|
| 616 |
|
---|
| 617 | #ifndef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 618 | class const_iterator:
|
---|
| 619 | public container_const_reference<vector_binary>,
|
---|
| 620 | public iterator_base_traits<typename iterator_restrict_traits<typename E1::const_iterator::iterator_category,
|
---|
| 621 | typename E2::const_iterator::iterator_category>::iterator_category>::template
|
---|
| 622 | iterator_base<const_iterator, value_type>::type {
|
---|
| 623 | public:
|
---|
| 624 | typedef typename iterator_restrict_traits<typename E1::const_iterator::iterator_category,
|
---|
| 625 | typename E2::const_iterator::iterator_category>::iterator_category iterator_category;
|
---|
| 626 | typedef typename vector_binary::difference_type difference_type;
|
---|
| 627 | typedef typename vector_binary::value_type value_type;
|
---|
| 628 | typedef typename vector_binary::const_reference reference;
|
---|
| 629 | typedef typename vector_binary::const_pointer pointer;
|
---|
| 630 |
|
---|
| 631 | // Construction and destruction
|
---|
| 632 | BOOST_UBLAS_INLINE
|
---|
| 633 | const_iterator ():
|
---|
| 634 | container_const_reference<self_type> (), i_ (), it1_ (), it1_end_ (), it2_ (), it2_end_ () {}
|
---|
| 635 | BOOST_UBLAS_INLINE
|
---|
| 636 | const_iterator (const self_type &vb, size_type i,
|
---|
| 637 | const const_subiterator1_type &it1, const const_subiterator1_type &it1_end,
|
---|
| 638 | const const_subiterator2_type &it2, const const_subiterator2_type &it2_end):
|
---|
| 639 | container_const_reference<self_type> (vb), i_ (i), it1_ (it1), it1_end_ (it1_end), it2_ (it2), it2_end_ (it2_end) {}
|
---|
| 640 |
|
---|
| 641 | // Dense specializations
|
---|
| 642 | BOOST_UBLAS_INLINE
|
---|
| 643 | void increment (dense_random_access_iterator_tag) {
|
---|
| 644 | ++ i_, ++ it1_, ++ it2_;
|
---|
| 645 | }
|
---|
| 646 | BOOST_UBLAS_INLINE
|
---|
| 647 | void decrement (dense_random_access_iterator_tag) {
|
---|
| 648 | -- i_, -- it1_, -- it2_;
|
---|
| 649 | }
|
---|
| 650 | BOOST_UBLAS_INLINE
|
---|
| 651 | value_type dereference (dense_random_access_iterator_tag) const {
|
---|
| 652 | return functor_type::apply (*it1_, *it2_);
|
---|
| 653 | }
|
---|
| 654 |
|
---|
| 655 | // Packed specializations
|
---|
| 656 | BOOST_UBLAS_INLINE
|
---|
| 657 | void increment (packed_random_access_iterator_tag) {
|
---|
| 658 | if (it1_ != it1_end_)
|
---|
| 659 | if (it1_.index () <= i_)
|
---|
| 660 | ++ it1_;
|
---|
| 661 | if (it2_ != it2_end_)
|
---|
| 662 | if (it2_.index () <= i_)
|
---|
| 663 | ++ it2_;
|
---|
| 664 | ++ i_;
|
---|
| 665 | }
|
---|
| 666 | BOOST_UBLAS_INLINE
|
---|
| 667 | void decrement (packed_random_access_iterator_tag) {
|
---|
| 668 | if (it1_ != it1_end_)
|
---|
| 669 | if (i_ <= it1_.index ())
|
---|
| 670 | -- it1_;
|
---|
| 671 | if (it2_ != it2_end_)
|
---|
| 672 | if (i_ <= it2_.index ())
|
---|
| 673 | -- it2_;
|
---|
| 674 | -- i_;
|
---|
| 675 | }
|
---|
| 676 | BOOST_UBLAS_INLINE
|
---|
| 677 | value_type dereference (packed_random_access_iterator_tag) const {
|
---|
| 678 | value_type t1 = value_type/*zero*/();
|
---|
| 679 | if (it1_ != it1_end_)
|
---|
| 680 | if (it1_.index () == i_)
|
---|
| 681 | t1 = *it1_;
|
---|
| 682 | value_type t2 = value_type/*zero*/();
|
---|
| 683 | if (it2_ != it2_end_)
|
---|
| 684 | if (it2_.index () == i_)
|
---|
| 685 | t2 = *it2_;
|
---|
| 686 | return functor_type::apply (t1, t2);
|
---|
| 687 | }
|
---|
| 688 |
|
---|
| 689 | // Sparse specializations
|
---|
| 690 | BOOST_UBLAS_INLINE
|
---|
| 691 | void increment (sparse_bidirectional_iterator_tag) {
|
---|
| 692 | size_type index1 = (*this) ().size ();
|
---|
| 693 | if (it1_ != it1_end_) {
|
---|
| 694 | if (it1_.index () <= i_)
|
---|
| 695 | ++ it1_;
|
---|
| 696 | if (it1_ != it1_end_)
|
---|
| 697 | index1 = it1_.index ();
|
---|
| 698 | }
|
---|
| 699 | size_type index2 = (*this) ().size ();
|
---|
| 700 | if (it2_ != it2_end_) {
|
---|
| 701 | if (it2_.index () <= i_)
|
---|
| 702 | ++ it2_;
|
---|
| 703 | if (it2_ != it2_end_)
|
---|
| 704 | index2 = it2_.index ();
|
---|
| 705 | }
|
---|
| 706 | i_ = (std::min) (index1, index2);
|
---|
| 707 | }
|
---|
| 708 | BOOST_UBLAS_INLINE
|
---|
| 709 | void decrement (sparse_bidirectional_iterator_tag) {
|
---|
| 710 | size_type index1 = (*this) ().size ();
|
---|
| 711 | if (it1_ != it1_end_) {
|
---|
| 712 | if (i_ <= it1_.index ())
|
---|
| 713 | -- it1_;
|
---|
| 714 | if (it1_ != it1_end_)
|
---|
| 715 | index1 = it1_.index ();
|
---|
| 716 | }
|
---|
| 717 | size_type index2 = (*this) ().size ();
|
---|
| 718 | if (it2_ != it2_end_) {
|
---|
| 719 | if (i_ <= it2_.index ())
|
---|
| 720 | -- it2_;
|
---|
| 721 | if (it2_ != it2_end_)
|
---|
| 722 | index2 = it2_.index ();
|
---|
| 723 | }
|
---|
| 724 | i_ = (std::max) (index1, index2);
|
---|
| 725 | }
|
---|
| 726 | BOOST_UBLAS_INLINE
|
---|
| 727 | value_type dereference (sparse_bidirectional_iterator_tag) const {
|
---|
| 728 | value_type t1 = value_type/*zero*/();
|
---|
| 729 | if (it1_ != it1_end_)
|
---|
| 730 | if (it1_.index () == i_)
|
---|
| 731 | t1 = *it1_;
|
---|
| 732 | value_type t2 = value_type/*zero*/();
|
---|
| 733 | if (it2_ != it2_end_)
|
---|
| 734 | if (it2_.index () == i_)
|
---|
| 735 | t2 = *it2_;
|
---|
| 736 | return functor_type::apply (t1, t2);
|
---|
| 737 | }
|
---|
| 738 |
|
---|
| 739 | // Arithmetic
|
---|
| 740 | BOOST_UBLAS_INLINE
|
---|
| 741 | const_iterator &operator ++ () {
|
---|
| 742 | increment (iterator_category ());
|
---|
| 743 | return *this;
|
---|
| 744 | }
|
---|
| 745 | BOOST_UBLAS_INLINE
|
---|
| 746 | const_iterator &operator -- () {
|
---|
| 747 | decrement (iterator_category ());
|
---|
| 748 | return *this;
|
---|
| 749 | }
|
---|
| 750 | BOOST_UBLAS_INLINE
|
---|
| 751 | const_iterator &operator += (difference_type n) {
|
---|
| 752 | i_ += n, it1_ += n, it2_ += n;
|
---|
| 753 | return *this;
|
---|
| 754 | }
|
---|
| 755 | BOOST_UBLAS_INLINE
|
---|
| 756 | const_iterator &operator -= (difference_type n) {
|
---|
| 757 | i_ -= n, it1_ -= n, it2_ -= n;
|
---|
| 758 | return *this;
|
---|
| 759 | }
|
---|
| 760 | BOOST_UBLAS_INLINE
|
---|
| 761 | difference_type operator - (const const_iterator &it) const {
|
---|
| 762 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 763 | return index () - it.index ();
|
---|
| 764 | }
|
---|
| 765 |
|
---|
| 766 | // Dereference
|
---|
| 767 | BOOST_UBLAS_INLINE
|
---|
| 768 | const_reference operator * () const {
|
---|
| 769 | return dereference (iterator_category ());
|
---|
| 770 | }
|
---|
| 771 |
|
---|
| 772 | // Index
|
---|
| 773 | BOOST_UBLAS_INLINE
|
---|
| 774 | size_type index () const {
|
---|
| 775 | return i_;
|
---|
| 776 | }
|
---|
| 777 |
|
---|
| 778 | // Assignment
|
---|
| 779 | BOOST_UBLAS_INLINE
|
---|
| 780 | const_iterator &operator = (const const_iterator &it) {
|
---|
| 781 | container_const_reference<self_type>::assign (&it ());
|
---|
| 782 | i_ = it.i_;
|
---|
| 783 | it1_ = it.it1_;
|
---|
| 784 | it1_end_ = it.it1_end_;
|
---|
| 785 | it2_ = it.it2_;
|
---|
| 786 | it2_end_ = it.it2_end_;
|
---|
| 787 | return *this;
|
---|
| 788 | }
|
---|
| 789 |
|
---|
| 790 | // Comparison
|
---|
| 791 | BOOST_UBLAS_INLINE
|
---|
| 792 | bool operator == (const const_iterator &it) const {
|
---|
| 793 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 794 | return index () == it.index ();
|
---|
| 795 | }
|
---|
| 796 | BOOST_UBLAS_INLINE
|
---|
| 797 | bool operator < (const const_iterator &it) const {
|
---|
| 798 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 799 | return index () < it.index ();
|
---|
| 800 | }
|
---|
| 801 |
|
---|
| 802 | private:
|
---|
| 803 | size_type i_;
|
---|
| 804 | const_subiterator1_type it1_;
|
---|
| 805 | const_subiterator1_type it1_end_;
|
---|
| 806 | const_subiterator2_type it2_;
|
---|
| 807 | const_subiterator2_type it2_end_;
|
---|
| 808 | };
|
---|
| 809 | #endif
|
---|
| 810 |
|
---|
| 811 | BOOST_UBLAS_INLINE
|
---|
| 812 | const_iterator begin () const {
|
---|
| 813 | return find (0);
|
---|
| 814 | }
|
---|
| 815 | BOOST_UBLAS_INLINE
|
---|
| 816 | const_iterator end () const {
|
---|
| 817 | return find (size ());
|
---|
| 818 | }
|
---|
| 819 |
|
---|
| 820 | // Reverse iterator
|
---|
| 821 | typedef reverse_iterator_base<const_iterator> const_reverse_iterator;
|
---|
| 822 |
|
---|
| 823 | BOOST_UBLAS_INLINE
|
---|
| 824 | const_reverse_iterator rbegin () const {
|
---|
| 825 | return const_reverse_iterator (end ());
|
---|
| 826 | }
|
---|
| 827 | BOOST_UBLAS_INLINE
|
---|
| 828 | const_reverse_iterator rend () const {
|
---|
| 829 | return const_reverse_iterator (begin ());
|
---|
| 830 | }
|
---|
| 831 |
|
---|
| 832 | private:
|
---|
| 833 | expression1_closure_type e1_;
|
---|
| 834 | expression2_closure_type e2_;
|
---|
| 835 | };
|
---|
| 836 |
|
---|
| 837 | template<class E1, class E2, class F>
|
---|
| 838 | struct vector_binary_traits {
|
---|
| 839 | typedef vector_binary<E1, E2, F> expression_type;
|
---|
| 840 | #ifndef BOOST_UBLAS_SIMPLE_ET_DEBUG
|
---|
| 841 | typedef expression_type result_type;
|
---|
| 842 | #else
|
---|
| 843 | typedef typename E1::vector_temporary_type result_type;
|
---|
| 844 | #endif
|
---|
| 845 | };
|
---|
| 846 |
|
---|
| 847 | // (v1 + v2) [i] = v1 [i] + v2 [i]
|
---|
| 848 | template<class E1, class E2>
|
---|
| 849 | BOOST_UBLAS_INLINE
|
---|
| 850 | typename vector_binary_traits<E1, E2, scalar_plus<typename E1::value_type,
|
---|
| 851 | typename E2::value_type> >::result_type
|
---|
| 852 | operator + (const vector_expression<E1> &e1,
|
---|
| 853 | const vector_expression<E2> &e2) {
|
---|
| 854 | typedef typename vector_binary_traits<E1, E2, scalar_plus<typename E1::value_type,
|
---|
| 855 | typename E2::value_type> >::expression_type expression_type;
|
---|
| 856 | return expression_type (e1 (), e2 ());
|
---|
| 857 | }
|
---|
| 858 |
|
---|
| 859 | // (v1 - v2) [i] = v1 [i] - v2 [i]
|
---|
| 860 | template<class E1, class E2>
|
---|
| 861 | BOOST_UBLAS_INLINE
|
---|
| 862 | typename vector_binary_traits<E1, E2, scalar_minus<typename E1::value_type,
|
---|
| 863 | typename E2::value_type> >::result_type
|
---|
| 864 | operator - (const vector_expression<E1> &e1,
|
---|
| 865 | const vector_expression<E2> &e2) {
|
---|
| 866 | typedef typename vector_binary_traits<E1, E2, scalar_minus<typename E1::value_type,
|
---|
| 867 | typename E2::value_type> >::expression_type expression_type;
|
---|
| 868 | return expression_type (e1 (), e2 ());
|
---|
| 869 | }
|
---|
| 870 |
|
---|
| 871 | // (v1 * v2) [i] = v1 [i] * v2 [i]
|
---|
| 872 | template<class E1, class E2>
|
---|
| 873 | BOOST_UBLAS_INLINE
|
---|
| 874 | typename vector_binary_traits<E1, E2, scalar_multiplies<typename E1::value_type,
|
---|
| 875 | typename E2::value_type> >::result_type
|
---|
| 876 | element_prod (const vector_expression<E1> &e1,
|
---|
| 877 | const vector_expression<E2> &e2) {
|
---|
| 878 | typedef typename vector_binary_traits<E1, E2, scalar_multiplies<typename E1::value_type,
|
---|
| 879 | typename E2::value_type> >::expression_type expression_type;
|
---|
| 880 | return expression_type (e1 (), e2 ());
|
---|
| 881 | }
|
---|
| 882 |
|
---|
| 883 | // (v1 / v2) [i] = v1 [i] / v2 [i]
|
---|
| 884 | template<class E1, class E2>
|
---|
| 885 | BOOST_UBLAS_INLINE
|
---|
| 886 | typename vector_binary_traits<E1, E2, scalar_divides<typename E1::value_type,
|
---|
| 887 | typename E2::value_type> >::result_type
|
---|
| 888 | element_div (const vector_expression<E1> &e1,
|
---|
| 889 | const vector_expression<E2> &e2) {
|
---|
| 890 | typedef typename vector_binary_traits<E1, E2, scalar_divides<typename E1::value_type,
|
---|
| 891 | typename E2::value_type> >::expression_type expression_type;
|
---|
| 892 | return expression_type (e1 (), e2 ());
|
---|
| 893 | }
|
---|
| 894 |
|
---|
| 895 |
|
---|
| 896 | template<class E1, class E2, class F>
|
---|
| 897 | class vector_binary_scalar1:
|
---|
| 898 | public vector_expression<vector_binary_scalar1<E1, E2, F> > {
|
---|
| 899 |
|
---|
| 900 | typedef F functor_type;
|
---|
| 901 | typedef E1 expression1_type;
|
---|
| 902 | typedef E2 expression2_type;
|
---|
| 903 | public:
|
---|
| 904 | typedef const E1& expression1_closure_type;
|
---|
| 905 | typedef typename E2::const_closure_type expression2_closure_type;
|
---|
| 906 | private:
|
---|
| 907 | typedef vector_binary_scalar1<E1, E2, F> self_type;
|
---|
| 908 | public:
|
---|
| 909 | #ifdef BOOST_UBLAS_ENABLE_PROXY_SHORTCUTS
|
---|
| 910 | using vector_expression<vector_binary_scalar1<E1, E2, F> >::operator ();
|
---|
| 911 | #endif
|
---|
| 912 | typedef typename E2::size_type size_type;
|
---|
| 913 | typedef typename E2::difference_type difference_type;
|
---|
| 914 | typedef typename F::result_type value_type;
|
---|
| 915 | typedef value_type const_reference;
|
---|
| 916 | typedef const_reference reference;
|
---|
| 917 | typedef const self_type const_closure_type;
|
---|
| 918 | typedef const_closure_type closure_type;
|
---|
| 919 | typedef unknown_storage_tag storage_category;
|
---|
| 920 |
|
---|
| 921 | // Construction and destruction
|
---|
| 922 | BOOST_UBLAS_INLINE
|
---|
| 923 | vector_binary_scalar1 (const expression1_type &e1, const expression2_type &e2):
|
---|
| 924 | e1_ (e1), e2_ (e2) {}
|
---|
| 925 |
|
---|
| 926 | // Accessors
|
---|
| 927 | BOOST_UBLAS_INLINE
|
---|
| 928 | size_type size () const {
|
---|
| 929 | return e2_.size ();
|
---|
| 930 | }
|
---|
| 931 |
|
---|
| 932 | public:
|
---|
| 933 | // Element access
|
---|
| 934 | BOOST_UBLAS_INLINE
|
---|
| 935 | const_reference operator () (size_type i) const {
|
---|
| 936 | return functor_type::apply (e1_, e2_ (i));
|
---|
| 937 | }
|
---|
| 938 |
|
---|
| 939 | BOOST_UBLAS_INLINE
|
---|
| 940 | const_reference operator [] (size_type i) const {
|
---|
| 941 | return functor_type::apply (e1_, e2_ [i]);
|
---|
| 942 | }
|
---|
| 943 |
|
---|
| 944 | // Closure comparison
|
---|
| 945 | BOOST_UBLAS_INLINE
|
---|
| 946 | bool same_closure (const vector_binary_scalar1 &vbs1) const {
|
---|
| 947 | return &e1_ == &(vbs1.e1_) &&
|
---|
| 948 | (*this).e2_.same_closure (vbs1.e2_);
|
---|
| 949 | }
|
---|
| 950 |
|
---|
| 951 | // Iterator types
|
---|
| 952 | private:
|
---|
| 953 | typedef expression1_type const_subiterator1_type;
|
---|
| 954 | typedef typename expression2_type::const_iterator const_subiterator2_type;
|
---|
| 955 | typedef const value_type *const_pointer;
|
---|
| 956 |
|
---|
| 957 | public:
|
---|
| 958 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 959 | typedef indexed_const_iterator<const_closure_type, typename const_subiterator2_type::iterator_category> const_iterator;
|
---|
| 960 | typedef const_iterator iterator;
|
---|
| 961 | #else
|
---|
| 962 | class const_iterator;
|
---|
| 963 | typedef const_iterator iterator;
|
---|
| 964 | #endif
|
---|
| 965 |
|
---|
| 966 | // Element lookup
|
---|
| 967 | BOOST_UBLAS_INLINE
|
---|
| 968 | const_iterator find (size_type i) const {
|
---|
| 969 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 970 | const_subiterator2_type it (e2_.find (i));
|
---|
| 971 | return const_iterator (*this, it.index ());
|
---|
| 972 | #else
|
---|
| 973 | return const_iterator (*this, const_subiterator1_type (e1_), e2_.find (i));
|
---|
| 974 | #endif
|
---|
| 975 | }
|
---|
| 976 |
|
---|
| 977 | // Iterator enhances the iterator of the referenced vector expression
|
---|
| 978 | // with the binary functor.
|
---|
| 979 |
|
---|
| 980 | #ifndef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 981 | class const_iterator:
|
---|
| 982 | public container_const_reference<vector_binary_scalar1>,
|
---|
| 983 | public iterator_base_traits<typename E2::const_iterator::iterator_category>::template
|
---|
| 984 | iterator_base<const_iterator, value_type>::type {
|
---|
| 985 | public:
|
---|
| 986 | typedef typename E2::const_iterator::iterator_category iterator_category;
|
---|
| 987 | typedef typename vector_binary_scalar1::difference_type difference_type;
|
---|
| 988 | typedef typename vector_binary_scalar1::value_type value_type;
|
---|
| 989 | typedef typename vector_binary_scalar1::const_reference reference;
|
---|
| 990 | typedef typename vector_binary_scalar1::const_pointer pointer;
|
---|
| 991 |
|
---|
| 992 | // Construction and destruction
|
---|
| 993 | BOOST_UBLAS_INLINE
|
---|
| 994 | const_iterator ():
|
---|
| 995 | container_const_reference<self_type> (), it1_ (), it2_ () {}
|
---|
| 996 | BOOST_UBLAS_INLINE
|
---|
| 997 | const_iterator (const self_type &vbs, const const_subiterator1_type &it1, const const_subiterator2_type &it2):
|
---|
| 998 | container_const_reference<self_type> (vbs), it1_ (it1), it2_ (it2) {}
|
---|
| 999 |
|
---|
| 1000 | // Arithmetic
|
---|
| 1001 | BOOST_UBLAS_INLINE
|
---|
| 1002 | const_iterator &operator ++ () {
|
---|
| 1003 | ++ it2_;
|
---|
| 1004 | return *this;
|
---|
| 1005 | }
|
---|
| 1006 | BOOST_UBLAS_INLINE
|
---|
| 1007 | const_iterator &operator -- () {
|
---|
| 1008 | -- it2_;
|
---|
| 1009 | return *this;
|
---|
| 1010 | }
|
---|
| 1011 | BOOST_UBLAS_INLINE
|
---|
| 1012 | const_iterator &operator += (difference_type n) {
|
---|
| 1013 | it2_ += n;
|
---|
| 1014 | return *this;
|
---|
| 1015 | }
|
---|
| 1016 | BOOST_UBLAS_INLINE
|
---|
| 1017 | const_iterator &operator -= (difference_type n) {
|
---|
| 1018 | it2_ -= n;
|
---|
| 1019 | return *this;
|
---|
| 1020 | }
|
---|
| 1021 | BOOST_UBLAS_INLINE
|
---|
| 1022 | difference_type operator - (const const_iterator &it) const {
|
---|
| 1023 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 1024 | // FIXME we shouldn't compare floats
|
---|
| 1025 | // BOOST_UBLAS_CHECK (it1_ == it.it1_, external_logic ());
|
---|
| 1026 | return it2_ - it.it2_;
|
---|
| 1027 | }
|
---|
| 1028 |
|
---|
| 1029 | // Dereference
|
---|
| 1030 | BOOST_UBLAS_INLINE
|
---|
| 1031 | const_reference operator * () const {
|
---|
| 1032 | return functor_type::apply (it1_, *it2_);
|
---|
| 1033 | }
|
---|
| 1034 |
|
---|
| 1035 | // Index
|
---|
| 1036 | BOOST_UBLAS_INLINE
|
---|
| 1037 | size_type index () const {
|
---|
| 1038 | return it2_.index ();
|
---|
| 1039 | }
|
---|
| 1040 |
|
---|
| 1041 | // Assignment
|
---|
| 1042 | BOOST_UBLAS_INLINE
|
---|
| 1043 | const_iterator &operator = (const const_iterator &it) {
|
---|
| 1044 | container_const_reference<self_type>::assign (&it ());
|
---|
| 1045 | it1_ = it.it1_;
|
---|
| 1046 | it2_ = it.it2_;
|
---|
| 1047 | return *this;
|
---|
| 1048 | }
|
---|
| 1049 |
|
---|
| 1050 | // Comparison
|
---|
| 1051 | BOOST_UBLAS_INLINE
|
---|
| 1052 | bool operator == (const const_iterator &it) const {
|
---|
| 1053 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 1054 | // FIXME we shouldn't compare floats
|
---|
| 1055 | // BOOST_UBLAS_CHECK (it1_ == it.it1_, external_logic ());
|
---|
| 1056 | return it2_ == it.it2_;
|
---|
| 1057 | }
|
---|
| 1058 | BOOST_UBLAS_INLINE
|
---|
| 1059 | bool operator < (const const_iterator &it) const {
|
---|
| 1060 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 1061 | // FIXME we shouldn't compare floats
|
---|
| 1062 | // BOOST_UBLAS_CHECK (it1_ == it.it1_, external_logic ());
|
---|
| 1063 | return it2_ < it.it2_;
|
---|
| 1064 | }
|
---|
| 1065 |
|
---|
| 1066 | private:
|
---|
| 1067 | const_subiterator1_type it1_;
|
---|
| 1068 | const_subiterator2_type it2_;
|
---|
| 1069 | };
|
---|
| 1070 | #endif
|
---|
| 1071 |
|
---|
| 1072 | BOOST_UBLAS_INLINE
|
---|
| 1073 | const_iterator begin () const {
|
---|
| 1074 | return find (0);
|
---|
| 1075 | }
|
---|
| 1076 | BOOST_UBLAS_INLINE
|
---|
| 1077 | const_iterator end () const {
|
---|
| 1078 | return find (size ());
|
---|
| 1079 | }
|
---|
| 1080 |
|
---|
| 1081 | // Reverse iterator
|
---|
| 1082 | typedef reverse_iterator_base<const_iterator> const_reverse_iterator;
|
---|
| 1083 |
|
---|
| 1084 | BOOST_UBLAS_INLINE
|
---|
| 1085 | const_reverse_iterator rbegin () const {
|
---|
| 1086 | return const_reverse_iterator (end ());
|
---|
| 1087 | }
|
---|
| 1088 | BOOST_UBLAS_INLINE
|
---|
| 1089 | const_reverse_iterator rend () const {
|
---|
| 1090 | return const_reverse_iterator (begin ());
|
---|
| 1091 | }
|
---|
| 1092 |
|
---|
| 1093 | private:
|
---|
| 1094 | expression1_closure_type e1_;
|
---|
| 1095 | expression2_closure_type e2_;
|
---|
| 1096 | };
|
---|
| 1097 |
|
---|
| 1098 | template<class E1, class E2, class F>
|
---|
| 1099 | struct vector_binary_scalar1_traits {
|
---|
| 1100 | typedef vector_binary_scalar1<E1, E2, F> expression_type; // allow E1 to be builtin type
|
---|
| 1101 | #ifndef BOOST_UBLAS_SIMPLE_ET_DEBUG
|
---|
| 1102 | typedef expression_type result_type;
|
---|
| 1103 | #else
|
---|
| 1104 | typedef typename E2::vector_temporary_type result_type;
|
---|
| 1105 | #endif
|
---|
| 1106 | };
|
---|
| 1107 |
|
---|
| 1108 | // (t * v) [i] = t * v [i]
|
---|
| 1109 | template<class T1, class E2>
|
---|
| 1110 | BOOST_UBLAS_INLINE
|
---|
| 1111 | typename vector_binary_scalar1_traits<const T1, E2, scalar_multiplies<T1, typename E2::value_type> >::result_type
|
---|
| 1112 | operator * (const T1 &e1,
|
---|
| 1113 | const vector_expression<E2> &e2) {
|
---|
| 1114 | typedef typename vector_binary_scalar1_traits<const T1, E2, scalar_multiplies<T1, typename E2::value_type> >::expression_type expression_type;
|
---|
| 1115 | return expression_type (e1, e2 ());
|
---|
| 1116 | }
|
---|
| 1117 |
|
---|
| 1118 |
|
---|
| 1119 | template<class E1, class E2, class F>
|
---|
| 1120 | class vector_binary_scalar2:
|
---|
| 1121 | public vector_expression<vector_binary_scalar2<E1, E2, F> > {
|
---|
| 1122 |
|
---|
| 1123 | typedef F functor_type;
|
---|
| 1124 | typedef E1 expression1_type;
|
---|
| 1125 | typedef E2 expression2_type;
|
---|
| 1126 | typedef typename E1::const_closure_type expression1_closure_type;
|
---|
| 1127 | typedef const E2& expression2_closure_type;
|
---|
| 1128 | typedef vector_binary_scalar2<E1, E2, F> self_type;
|
---|
| 1129 | public:
|
---|
| 1130 | #ifdef BOOST_UBLAS_ENABLE_PROXY_SHORTCUTS
|
---|
| 1131 | using vector_expression<vector_binary_scalar2<E1, E2, F> >::operator ();
|
---|
| 1132 | #endif
|
---|
| 1133 | typedef typename E1::size_type size_type;
|
---|
| 1134 | typedef typename E1::difference_type difference_type;
|
---|
| 1135 | typedef typename F::result_type value_type;
|
---|
| 1136 | typedef value_type const_reference;
|
---|
| 1137 | typedef const_reference reference;
|
---|
| 1138 | typedef const self_type const_closure_type;
|
---|
| 1139 | typedef const_closure_type closure_type;
|
---|
| 1140 | typedef unknown_storage_tag storage_category;
|
---|
| 1141 |
|
---|
| 1142 | // Construction and destruction
|
---|
| 1143 | BOOST_UBLAS_INLINE
|
---|
| 1144 | vector_binary_scalar2 (const expression1_type &e1, const expression2_type &e2):
|
---|
| 1145 | e1_ (e1), e2_ (e2) {}
|
---|
| 1146 |
|
---|
| 1147 | // Accessors
|
---|
| 1148 | BOOST_UBLAS_INLINE
|
---|
| 1149 | size_type size () const {
|
---|
| 1150 | return e1_.size ();
|
---|
| 1151 | }
|
---|
| 1152 |
|
---|
| 1153 | public:
|
---|
| 1154 | // Element access
|
---|
| 1155 | BOOST_UBLAS_INLINE
|
---|
| 1156 | const_reference operator () (size_type i) const {
|
---|
| 1157 | return functor_type::apply (e1_ (i), e2_);
|
---|
| 1158 | }
|
---|
| 1159 |
|
---|
| 1160 | BOOST_UBLAS_INLINE
|
---|
| 1161 | const_reference operator [] (size_type i) const {
|
---|
| 1162 | return functor_type::apply (e1_ [i], e2_);
|
---|
| 1163 | }
|
---|
| 1164 |
|
---|
| 1165 | // Closure comparison
|
---|
| 1166 | BOOST_UBLAS_INLINE
|
---|
| 1167 | bool same_closure (const vector_binary_scalar2 &vbs2) const {
|
---|
| 1168 | return (*this).e1_.same_closure (vbs2.e1_) &&
|
---|
| 1169 | &e2_ == &(vbs2.e2_);
|
---|
| 1170 | }
|
---|
| 1171 |
|
---|
| 1172 | // Iterator types
|
---|
| 1173 | private:
|
---|
| 1174 | typedef typename expression1_type::const_iterator const_subiterator1_type;
|
---|
| 1175 | typedef expression2_type const_subiterator2_type;
|
---|
| 1176 | typedef const value_type *const_pointer;
|
---|
| 1177 |
|
---|
| 1178 | public:
|
---|
| 1179 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 1180 | typedef indexed_const_iterator<const_closure_type, typename const_subiterator2_type::iterator_category> const_iterator;
|
---|
| 1181 | typedef const_iterator iterator;
|
---|
| 1182 | #else
|
---|
| 1183 | class const_iterator;
|
---|
| 1184 | typedef const_iterator iterator;
|
---|
| 1185 | #endif
|
---|
| 1186 |
|
---|
| 1187 | // Element lookup
|
---|
| 1188 | BOOST_UBLAS_INLINE
|
---|
| 1189 | const_iterator find (size_type i) const {
|
---|
| 1190 | #ifdef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 1191 | const_subiterator1_type it (e1_.find (i));
|
---|
| 1192 | return const_iterator (*this, it.index ());
|
---|
| 1193 | #else
|
---|
| 1194 | return const_iterator (*this, e1_.find (i), const_subiterator2_type (e2_));
|
---|
| 1195 | #endif
|
---|
| 1196 | }
|
---|
| 1197 |
|
---|
| 1198 | // Iterator enhances the iterator of the referenced vector expression
|
---|
| 1199 | // with the binary functor.
|
---|
| 1200 |
|
---|
| 1201 | #ifndef BOOST_UBLAS_USE_INDEXED_ITERATOR
|
---|
| 1202 | class const_iterator:
|
---|
| 1203 | public container_const_reference<vector_binary_scalar2>,
|
---|
| 1204 | public iterator_base_traits<typename E1::const_iterator::iterator_category>::template
|
---|
| 1205 | iterator_base<const_iterator, value_type>::type {
|
---|
| 1206 | public:
|
---|
| 1207 | typedef typename E1::const_iterator::iterator_category iterator_category;
|
---|
| 1208 | typedef typename vector_binary_scalar2::difference_type difference_type;
|
---|
| 1209 | typedef typename vector_binary_scalar2::value_type value_type;
|
---|
| 1210 | typedef typename vector_binary_scalar2::const_reference reference;
|
---|
| 1211 | typedef typename vector_binary_scalar2::const_pointer pointer;
|
---|
| 1212 |
|
---|
| 1213 | // Construction and destruction
|
---|
| 1214 | BOOST_UBLAS_INLINE
|
---|
| 1215 | const_iterator ():
|
---|
| 1216 | container_const_reference<self_type> (), it1_ (), it2_ () {}
|
---|
| 1217 | BOOST_UBLAS_INLINE
|
---|
| 1218 | const_iterator (const self_type &vbs, const const_subiterator1_type &it1, const const_subiterator2_type &it2):
|
---|
| 1219 | container_const_reference<self_type> (vbs), it1_ (it1), it2_ (it2) {}
|
---|
| 1220 |
|
---|
| 1221 | // Arithmetic
|
---|
| 1222 | BOOST_UBLAS_INLINE
|
---|
| 1223 | const_iterator &operator ++ () {
|
---|
| 1224 | ++ it1_;
|
---|
| 1225 | return *this;
|
---|
| 1226 | }
|
---|
| 1227 | BOOST_UBLAS_INLINE
|
---|
| 1228 | const_iterator &operator -- () {
|
---|
| 1229 | -- it1_;
|
---|
| 1230 | return *this;
|
---|
| 1231 | }
|
---|
| 1232 | BOOST_UBLAS_INLINE
|
---|
| 1233 | const_iterator &operator += (difference_type n) {
|
---|
| 1234 | it1_ += n;
|
---|
| 1235 | return *this;
|
---|
| 1236 | }
|
---|
| 1237 | BOOST_UBLAS_INLINE
|
---|
| 1238 | const_iterator &operator -= (difference_type n) {
|
---|
| 1239 | it1_ -= n;
|
---|
| 1240 | return *this;
|
---|
| 1241 | }
|
---|
| 1242 | BOOST_UBLAS_INLINE
|
---|
| 1243 | difference_type operator - (const const_iterator &it) const {
|
---|
| 1244 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 1245 | // FIXME we shouldn't compare floats
|
---|
| 1246 | // BOOST_UBLAS_CHECK (it2_ == it.it2_, external_logic ());
|
---|
| 1247 | return it1_ - it.it1_;
|
---|
| 1248 | }
|
---|
| 1249 |
|
---|
| 1250 | // Dereference
|
---|
| 1251 | BOOST_UBLAS_INLINE
|
---|
| 1252 | const_reference operator * () const {
|
---|
| 1253 | return functor_type::apply (*it1_, it2_);
|
---|
| 1254 | }
|
---|
| 1255 |
|
---|
| 1256 | // Index
|
---|
| 1257 | BOOST_UBLAS_INLINE
|
---|
| 1258 | size_type index () const {
|
---|
| 1259 | return it1_.index ();
|
---|
| 1260 | }
|
---|
| 1261 |
|
---|
| 1262 | // Assignment
|
---|
| 1263 | BOOST_UBLAS_INLINE
|
---|
| 1264 | const_iterator &operator = (const const_iterator &it) {
|
---|
| 1265 | container_const_reference<self_type>::assign (&it ());
|
---|
| 1266 | it1_ = it.it1_;
|
---|
| 1267 | it2_ = it.it2_;
|
---|
| 1268 | return *this;
|
---|
| 1269 | }
|
---|
| 1270 |
|
---|
| 1271 | // Comparison
|
---|
| 1272 | BOOST_UBLAS_INLINE
|
---|
| 1273 | bool operator == (const const_iterator &it) const {
|
---|
| 1274 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 1275 | // FIXME we shouldn't compare floats
|
---|
| 1276 | // BOOST_UBLAS_CHECK (it2_ == it.it2_, external_logic ());
|
---|
| 1277 | return it1_ == it.it1_;
|
---|
| 1278 | }
|
---|
| 1279 | BOOST_UBLAS_INLINE
|
---|
| 1280 | bool operator < (const const_iterator &it) const {
|
---|
| 1281 | BOOST_UBLAS_CHECK ((*this) ().same_closure (it ()), external_logic ());
|
---|
| 1282 | // FIXME we shouldn't compare floats
|
---|
| 1283 | // BOOST_UBLAS_CHECK (it2_ == it.it2_, external_logic ());
|
---|
| 1284 | return it1_ < it.it1_;
|
---|
| 1285 | }
|
---|
| 1286 |
|
---|
| 1287 | private:
|
---|
| 1288 | const_subiterator1_type it1_;
|
---|
| 1289 | const_subiterator2_type it2_;
|
---|
| 1290 | };
|
---|
| 1291 | #endif
|
---|
| 1292 |
|
---|
| 1293 | BOOST_UBLAS_INLINE
|
---|
| 1294 | const_iterator begin () const {
|
---|
| 1295 | return find (0);
|
---|
| 1296 | }
|
---|
| 1297 | BOOST_UBLAS_INLINE
|
---|
| 1298 | const_iterator end () const {
|
---|
| 1299 | return find (size ());
|
---|
| 1300 | }
|
---|
| 1301 |
|
---|
| 1302 | // Reverse iterator
|
---|
| 1303 | typedef reverse_iterator_base<const_iterator> const_reverse_iterator;
|
---|
| 1304 |
|
---|
| 1305 | BOOST_UBLAS_INLINE
|
---|
| 1306 | const_reverse_iterator rbegin () const {
|
---|
| 1307 | return const_reverse_iterator (end ());
|
---|
| 1308 | }
|
---|
| 1309 | BOOST_UBLAS_INLINE
|
---|
| 1310 | const_reverse_iterator rend () const {
|
---|
| 1311 | return const_reverse_iterator (begin ());
|
---|
| 1312 | }
|
---|
| 1313 |
|
---|
| 1314 | private:
|
---|
| 1315 | expression1_closure_type e1_;
|
---|
| 1316 | expression2_closure_type e2_;
|
---|
| 1317 | };
|
---|
| 1318 |
|
---|
| 1319 | template<class E1, class E2, class F>
|
---|
| 1320 | struct vector_binary_scalar2_traits {
|
---|
| 1321 | typedef vector_binary_scalar2<E1, E2, F> expression_type; // allow E2 to be builtin type
|
---|
| 1322 | #ifndef BOOST_UBLAS_SIMPLE_ET_DEBUG
|
---|
| 1323 | typedef expression_type result_type;
|
---|
| 1324 | #else
|
---|
| 1325 | typedef typename E1::vector_temporary_type result_type;
|
---|
| 1326 | #endif
|
---|
| 1327 | };
|
---|
| 1328 |
|
---|
| 1329 | // (v * t) [i] = v [i] * t
|
---|
| 1330 | template<class E1, class T2>
|
---|
| 1331 | BOOST_UBLAS_INLINE
|
---|
| 1332 | typename vector_binary_scalar2_traits<E1, const T2, scalar_multiplies<typename E1::value_type, T2> >::result_type
|
---|
| 1333 | operator * (const vector_expression<E1> &e1,
|
---|
| 1334 | const T2 &e2) {
|
---|
| 1335 | typedef typename vector_binary_scalar2_traits<E1, const T2, scalar_multiplies<typename E1::value_type, T2> >::expression_type expression_type;
|
---|
| 1336 | return expression_type (e1 (), e2);
|
---|
| 1337 | }
|
---|
| 1338 |
|
---|
| 1339 | // (v / t) [i] = v [i] / t
|
---|
| 1340 | template<class E1, class T2>
|
---|
| 1341 | BOOST_UBLAS_INLINE
|
---|
| 1342 | typename vector_binary_scalar2_traits<E1, const T2, scalar_divides<typename E1::value_type, T2> >::result_type
|
---|
| 1343 | operator / (const vector_expression<E1> &e1,
|
---|
| 1344 | const T2 &e2) {
|
---|
| 1345 | typedef typename vector_binary_scalar2_traits<E1, const T2, scalar_divides<typename E1::value_type, T2> >::expression_type expression_type;
|
---|
| 1346 | return expression_type (e1 (), e2);
|
---|
| 1347 | }
|
---|
| 1348 |
|
---|
| 1349 |
|
---|
| 1350 | template<class E, class F>
|
---|
| 1351 | class vector_scalar_unary:
|
---|
| 1352 | public scalar_expression<vector_scalar_unary<E, F> > {
|
---|
| 1353 |
|
---|
| 1354 | typedef E expression_type;
|
---|
| 1355 | typedef F functor_type;
|
---|
| 1356 | typedef typename E::const_closure_type expression_closure_type;
|
---|
| 1357 | typedef typename E::const_iterator::iterator_category iterator_category;
|
---|
| 1358 | typedef vector_scalar_unary<E, F> self_type;
|
---|
| 1359 | public:
|
---|
| 1360 | typedef typename F::size_type size_type;
|
---|
| 1361 | typedef typename F::difference_type difference_type;
|
---|
| 1362 | typedef typename F::result_type value_type;
|
---|
| 1363 | typedef const self_type const_closure_type;
|
---|
| 1364 | typedef const_closure_type closure_type;
|
---|
| 1365 | typedef unknown_storage_tag storage_category;
|
---|
| 1366 |
|
---|
| 1367 | // Construction and destruction
|
---|
| 1368 | BOOST_UBLAS_INLINE
|
---|
| 1369 | explicit vector_scalar_unary (const expression_type &e):
|
---|
| 1370 | e_ (e) {}
|
---|
| 1371 |
|
---|
| 1372 | private:
|
---|
| 1373 | // Expression accessors
|
---|
| 1374 | BOOST_UBLAS_INLINE
|
---|
| 1375 | const expression_closure_type &expression () const {
|
---|
| 1376 | return e_;
|
---|
| 1377 | }
|
---|
| 1378 |
|
---|
| 1379 | public:
|
---|
| 1380 | BOOST_UBLAS_INLINE
|
---|
| 1381 | operator value_type () const {
|
---|
| 1382 | return evaluate (iterator_category ());
|
---|
| 1383 | }
|
---|
| 1384 |
|
---|
| 1385 | private:
|
---|
| 1386 | // Dense random access specialization
|
---|
| 1387 | BOOST_UBLAS_INLINE
|
---|
| 1388 | value_type evaluate (dense_random_access_iterator_tag) const {
|
---|
| 1389 | #ifdef BOOST_UBLAS_USE_INDEXING
|
---|
| 1390 | return functor_type::apply (e_);
|
---|
| 1391 | #elif BOOST_UBLAS_USE_ITERATING
|
---|
| 1392 | difference_type size = e_.size ();
|
---|
| 1393 | return functor_type::apply (size, e_.begin ());
|
---|
| 1394 | #else
|
---|
| 1395 | difference_type size = e_.size ();
|
---|
| 1396 | if (size >= BOOST_UBLAS_ITERATOR_THRESHOLD)
|
---|
| 1397 | return functor_type::apply (size, e_.begin ());
|
---|
| 1398 | else
|
---|
| 1399 | return functor_type::apply (e_);
|
---|
| 1400 | #endif
|
---|
| 1401 | }
|
---|
| 1402 |
|
---|
| 1403 | // Packed bidirectional specialization
|
---|
| 1404 | BOOST_UBLAS_INLINE
|
---|
| 1405 | value_type evaluate (packed_random_access_iterator_tag) const {
|
---|
| 1406 | return functor_type::apply (e_.begin (), e_.end ());
|
---|
| 1407 | }
|
---|
| 1408 |
|
---|
| 1409 | // Sparse bidirectional specialization
|
---|
| 1410 | BOOST_UBLAS_INLINE
|
---|
| 1411 | value_type evaluate (sparse_bidirectional_iterator_tag) const {
|
---|
| 1412 | return functor_type::apply (e_.begin (), e_.end ());
|
---|
| 1413 | }
|
---|
| 1414 |
|
---|
| 1415 | private:
|
---|
| 1416 | expression_closure_type e_;
|
---|
| 1417 | };
|
---|
| 1418 |
|
---|
| 1419 | template<class E, class F>
|
---|
| 1420 | struct vector_scalar_unary_traits {
|
---|
| 1421 | typedef vector_scalar_unary<E, F> expression_type;
|
---|
| 1422 | #if !defined (BOOST_UBLAS_SIMPLE_ET_DEBUG) && defined (BOOST_UBLAS_USE_SCALAR_ET)
|
---|
| 1423 | // FIXME don't define USE_SCALAR_ET other then for testing
|
---|
| 1424 | // They do not work for complex types
|
---|
| 1425 | typedef expression_type result_type;
|
---|
| 1426 | #else
|
---|
| 1427 | typedef typename F::result_type result_type;
|
---|
| 1428 | #endif
|
---|
| 1429 | };
|
---|
| 1430 |
|
---|
| 1431 | // sum v = sum (v [i])
|
---|
| 1432 | template<class E>
|
---|
| 1433 | BOOST_UBLAS_INLINE
|
---|
| 1434 | typename vector_scalar_unary_traits<E, vector_sum<typename E::value_type> >::result_type
|
---|
| 1435 | sum (const vector_expression<E> &e) {
|
---|
| 1436 | typedef typename vector_scalar_unary_traits<E, vector_sum<typename E::value_type> >::expression_type expression_type;
|
---|
| 1437 | return expression_type (e ());
|
---|
| 1438 | }
|
---|
| 1439 |
|
---|
| 1440 | // real: norm_1 v = sum (abs (v [i]))
|
---|
| 1441 | // complex: norm_1 v = sum (abs (real (v [i])) + abs (imag (v [i])))
|
---|
| 1442 | template<class E>
|
---|
| 1443 | BOOST_UBLAS_INLINE
|
---|
| 1444 | typename vector_scalar_unary_traits<E, vector_norm_1<typename E::value_type> >::result_type
|
---|
| 1445 | norm_1 (const vector_expression<E> &e) {
|
---|
| 1446 | typedef typename vector_scalar_unary_traits<E, vector_norm_1<typename E::value_type> >::expression_type expression_type;
|
---|
| 1447 | return expression_type (e ());
|
---|
| 1448 | }
|
---|
| 1449 |
|
---|
| 1450 | // real: norm_2 v = sqrt (sum (v [i] * v [i]))
|
---|
| 1451 | // complex: norm_2 v = sqrt (sum (v [i] * conj (v [i])))
|
---|
| 1452 | template<class E>
|
---|
| 1453 | BOOST_UBLAS_INLINE
|
---|
| 1454 | typename vector_scalar_unary_traits<E, vector_norm_2<typename E::value_type> >::result_type
|
---|
| 1455 | norm_2 (const vector_expression<E> &e) {
|
---|
| 1456 | typedef typename vector_scalar_unary_traits<E, vector_norm_2<typename E::value_type> >::expression_type expression_type;
|
---|
| 1457 | return expression_type (e ());
|
---|
| 1458 | }
|
---|
| 1459 |
|
---|
| 1460 | // real: norm_inf v = maximum (abs (v [i]))
|
---|
| 1461 | // complex: norm_inf v = maximum (maximum (abs (real (v [i])), abs (imag (v [i]))))
|
---|
| 1462 | template<class E>
|
---|
| 1463 | BOOST_UBLAS_INLINE
|
---|
| 1464 | typename vector_scalar_unary_traits<E, vector_norm_inf<typename E::value_type> >::result_type
|
---|
| 1465 | norm_inf (const vector_expression<E> &e) {
|
---|
| 1466 | typedef typename vector_scalar_unary_traits<E, vector_norm_inf<typename E::value_type> >::expression_type expression_type;
|
---|
| 1467 | return expression_type (e ());
|
---|
| 1468 | }
|
---|
| 1469 |
|
---|
| 1470 | // real: index_norm_inf v = minimum (i: abs (v [i]) == maximum (abs (v [i])))
|
---|
| 1471 | template<class E>
|
---|
| 1472 | BOOST_UBLAS_INLINE
|
---|
| 1473 | typename vector_scalar_unary_traits<E, vector_index_norm_inf<typename E::value_type> >::result_type
|
---|
| 1474 | index_norm_inf (const vector_expression<E> &e) {
|
---|
| 1475 | typedef typename vector_scalar_unary_traits<E, vector_index_norm_inf<typename E::value_type> >::expression_type expression_type;
|
---|
| 1476 | return expression_type (e ());
|
---|
| 1477 | }
|
---|
| 1478 |
|
---|
| 1479 | template<class E1, class E2, class F>
|
---|
| 1480 | class vector_scalar_binary:
|
---|
| 1481 | public scalar_expression<vector_scalar_binary<E1, E2, F> > {
|
---|
| 1482 |
|
---|
| 1483 | typedef E1 expression1_type;
|
---|
| 1484 | typedef E2 expression2_type;
|
---|
| 1485 | typedef F functor_type;
|
---|
| 1486 | typedef typename E1::const_closure_type expression1_closure_type;
|
---|
| 1487 | typedef typename E2::const_closure_type expression2_closure_type;
|
---|
| 1488 | typedef typename iterator_restrict_traits<typename E1::const_iterator::iterator_category,
|
---|
| 1489 | typename E2::const_iterator::iterator_category>::iterator_category iterator_category;
|
---|
| 1490 | typedef vector_scalar_binary<E1, E2, F> self_type;
|
---|
| 1491 | public:
|
---|
| 1492 | static const unsigned complexity = 1;
|
---|
| 1493 | typedef typename F::size_type size_type;
|
---|
| 1494 | typedef typename F::difference_type difference_type;
|
---|
| 1495 | typedef typename F::result_type value_type;
|
---|
| 1496 | typedef const self_type const_closure_type;
|
---|
| 1497 | typedef const_closure_type closure_type;
|
---|
| 1498 | typedef unknown_storage_tag storage_category;
|
---|
| 1499 |
|
---|
| 1500 | // Construction and destruction
|
---|
| 1501 | BOOST_UBLAS_INLINE
|
---|
| 1502 | vector_scalar_binary (const expression1_type &e1, const expression2_type &e2):
|
---|
| 1503 | e1_ (e1), e2_ (e2) {}
|
---|
| 1504 |
|
---|
| 1505 | private:
|
---|
| 1506 | // Accessors
|
---|
| 1507 | BOOST_UBLAS_INLINE
|
---|
| 1508 | const expression1_closure_type &expression1 () const {
|
---|
| 1509 | return e1_;
|
---|
| 1510 | }
|
---|
| 1511 | BOOST_UBLAS_INLINE
|
---|
| 1512 | const expression2_closure_type &expression2 () const {
|
---|
| 1513 | return e2_;
|
---|
| 1514 | }
|
---|
| 1515 |
|
---|
| 1516 | public:
|
---|
| 1517 | BOOST_UBLAS_INLINE
|
---|
| 1518 | operator value_type () const {
|
---|
| 1519 | return evaluate (iterator_category ());
|
---|
| 1520 | }
|
---|
| 1521 |
|
---|
| 1522 | private:
|
---|
| 1523 | // Dense random access specialization
|
---|
| 1524 | BOOST_UBLAS_INLINE
|
---|
| 1525 | value_type evaluate (dense_random_access_iterator_tag) const {
|
---|
| 1526 | #ifdef BOOST_UBLAS_USE_INDEXING
|
---|
| 1527 | return functor_type::apply (e1_, e2_);
|
---|
| 1528 | #elif BOOST_UBLAS_USE_ITERATING
|
---|
| 1529 | difference_type size = BOOST_UBLAS_SAME (e1_.size (), e2_.size ());
|
---|
| 1530 | return functor_type::apply (size, e1_.begin (), e2_.begin ());
|
---|
| 1531 | #else
|
---|
| 1532 | difference_type size = BOOST_UBLAS_SAME (e1_.size (), e2_.size ());
|
---|
| 1533 | if (size >= BOOST_UBLAS_ITERATOR_THRESHOLD)
|
---|
| 1534 | return functor_type::apply (size, e1_.begin (), e2_.begin ());
|
---|
| 1535 | else
|
---|
| 1536 | return functor_type::apply (e1_, e2_);
|
---|
| 1537 | #endif
|
---|
| 1538 | }
|
---|
| 1539 |
|
---|
| 1540 | // Packed bidirectional specialization
|
---|
| 1541 | BOOST_UBLAS_INLINE
|
---|
| 1542 | value_type evaluate (packed_random_access_iterator_tag) const {
|
---|
| 1543 | return functor_type::apply (e1_.begin (), e1_.end (), e2_.begin (), e2_.end ());
|
---|
| 1544 | }
|
---|
| 1545 |
|
---|
| 1546 | // Sparse bidirectional specialization
|
---|
| 1547 | BOOST_UBLAS_INLINE
|
---|
| 1548 | value_type evaluate (sparse_bidirectional_iterator_tag) const {
|
---|
| 1549 | return functor_type::apply (e1_.begin (), e1_.end (), e2_.begin (), e2_.end (), sparse_bidirectional_iterator_tag ());
|
---|
| 1550 | }
|
---|
| 1551 |
|
---|
| 1552 | private:
|
---|
| 1553 | expression1_closure_type e1_;
|
---|
| 1554 | expression2_closure_type e2_;
|
---|
| 1555 | };
|
---|
| 1556 |
|
---|
| 1557 | template<class E1, class E2, class F>
|
---|
| 1558 | struct vector_scalar_binary_traits {
|
---|
| 1559 | typedef vector_scalar_binary<E1, E2, F> expression_type;
|
---|
| 1560 | #if !defined (BOOST_UBLAS_SIMPLE_ET_DEBUG) && defined (BOOST_UBLAS_USE_SCALAR_ET)
|
---|
| 1561 | // FIXME don't define USE_SCALAR_ET other then for testing
|
---|
| 1562 | // They do not work for complex types
|
---|
| 1563 | typedef expression_type result_type;
|
---|
| 1564 | #else
|
---|
| 1565 | typedef typename F::result_type result_type;
|
---|
| 1566 | #endif
|
---|
| 1567 | };
|
---|
| 1568 |
|
---|
| 1569 | // inner_prod (v1, v2) = sum (v1 [i] * v2 [i])
|
---|
| 1570 | template<class E1, class E2>
|
---|
| 1571 | BOOST_UBLAS_INLINE
|
---|
| 1572 | typename vector_scalar_binary_traits<E1, E2, vector_inner_prod<typename E1::value_type,
|
---|
| 1573 | typename E2::value_type,
|
---|
| 1574 | typename promote_traits<typename E1::value_type,
|
---|
| 1575 | typename E2::value_type>::promote_type> >::result_type
|
---|
| 1576 | inner_prod (const vector_expression<E1> &e1,
|
---|
| 1577 | const vector_expression<E2> &e2) {
|
---|
| 1578 | typedef typename vector_scalar_binary_traits<E1, E2, vector_inner_prod<typename E1::value_type,
|
---|
| 1579 | typename E2::value_type,
|
---|
| 1580 | typename promote_traits<typename E1::value_type,
|
---|
| 1581 | typename E2::value_type>::promote_type> >::expression_type expression_type;
|
---|
| 1582 | return expression_type (e1 (), e2 ());
|
---|
| 1583 | }
|
---|
| 1584 |
|
---|
| 1585 | template<class E1, class E2>
|
---|
| 1586 | BOOST_UBLAS_INLINE
|
---|
| 1587 | typename vector_scalar_binary_traits<E1, E2, vector_inner_prod<typename E1::value_type,
|
---|
| 1588 | typename E2::value_type,
|
---|
| 1589 | typename type_traits<typename promote_traits<typename E1::value_type,
|
---|
| 1590 | typename E2::value_type>::promote_type>::precision_type> >::result_type
|
---|
| 1591 | prec_inner_prod (const vector_expression<E1> &e1,
|
---|
| 1592 | const vector_expression<E2> &e2) {
|
---|
| 1593 | typedef typename vector_scalar_binary_traits<E1, E2, vector_inner_prod<typename E1::value_type,
|
---|
| 1594 | typename E2::value_type,
|
---|
| 1595 | typename type_traits<typename promote_traits<typename E1::value_type,
|
---|
| 1596 | typename E2::value_type>::promote_type>::precision_type> >::expression_type expression_type;
|
---|
| 1597 | return expression_type (e1 (), e2 ());
|
---|
| 1598 | }
|
---|
| 1599 |
|
---|
| 1600 | }}}
|
---|
| 1601 |
|
---|
| 1602 | #endif
|
---|