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;
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462 | return expression_type (e ());
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463 | }
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464 |
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465 | // (conj v) [i] = conj (v [i])
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466 | template<class E>
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467 | BOOST_UBLAS_INLINE
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468 | typename vector_unary_traits<E, scalar_conj<typename E::value_type> >::result_type
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469 | conj (const vector_expression<E> &e) {
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470 | typedef typename vector_unary_traits<E, scalar_conj<typename E::value_type> >::expression_type expression_type;
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471 | return expression_type (e ());
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472 | }
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473 |
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474 | // (real v) [i] = real (v [i])
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475 | template<class E>
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476 | BOOST_UBLAS_INLINE
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477 | typename vector_unary_traits<E, scalar_real<typename E::value_type> >::result_type
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478 | real (const vector_expression<E> &e) {
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479 | typedef typename vector_unary_traits<E, scalar_real<typename E::value_type> >::expression_type expression_type;
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480 | return expression_type (e ());
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481 | }
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482 |
|
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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
|
---|