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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright 2005-2007 Adobe Systems Incorporated</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Distributed under the Boost Software License, Version 1.0</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// See accompanying file LICENSE_1_0.txt or copy at</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.boost.org/LICENSE_1_0.txt</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#ifndef BOOST_GIL_PIXEL_ITERATOR_ADAPTOR_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#define BOOST_GIL_PIXEL_ITERATOR_ADAPTOR_HPP</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <boost/gil/concepts.hpp></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <boost/gil/pixel_iterator.hpp></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <boost/iterator/iterator_facade.hpp></span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <iterator></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> </div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">namespace </span><a class="code" href="namespaceboost.html">boost</a> { <span class="keyword">namespace </span>gil {</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator, <span class="comment">// Models Iterator</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">typename</span> DFn> <span class="comment">// Models Returns the result of dereferencing a given iterator of type Iterator</span></div><div class="line"><a name="l00029"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html"> 29</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a> : <span class="keyword">public</span> iterator_adaptor<dereference_iterator_adaptor<Iterator,DFn>,</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  Iterator,</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  typename DFn::value_type,</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  typename std::iterator_traits<Iterator>::iterator_category,</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  typename DFn::reference,</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  use_default> {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  DFn _deref_fn;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">using</span> parent_t = iterator_adaptor<dereference_iterator_adaptor<Iterator,DFn>,</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  Iterator,</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">typename</span> DFn::value_type,</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">typename</span> std::iterator_traits<Iterator>::iterator_category,</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">typename</span> DFn::reference,</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  use_default>;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">using</span> reference = <span class="keyword">typename</span> DFn::result_type;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">using</span> difference_type = <span class="keyword">typename</span> std::iterator_traits<Iterator>::difference_type;</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keyword">using</span> dereference_fn = DFn;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>() {}</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator1></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator1,DFn></a>& dit) : parent_t(dit.base()), _deref_fn(dit._deref_fn) {}</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>(Iterator it, DFn deref_fn=DFn()) : parent_t(it), _deref_fn(deref_fn) {}</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator1, <span class="keyword">typename</span> DFn1></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator1,DFn1></a>& it) : parent_t(it.base()), _deref_fn(it._deref_fn) {}</div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html#ade1279c4ed222b6efb0867c038765ea1"> 55</a></span>  reference <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html#ade1279c4ed222b6efb0867c038765ea1">operator[]</a>(difference_type d)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> *(*<span class="keyword">this</span>+d);}</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">// although iterator_adaptor defines these, the default implementation computes distance and compares for zero.</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">// it is often faster to just apply the relation operator to the base</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">bool</span> operator> (<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>& p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this->base_reference()> p.base_reference(); }</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordtype">bool</span> operator< (<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>& p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this->base_reference()< p.base_reference(); }</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">bool</span> operator>=(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>& p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this->base_reference()>=p.base_reference(); }</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordtype">bool</span> operator<=(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>& p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this->base_reference()<=p.base_reference(); }</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>& p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this->base_reference()==p.base_reference(); }</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>& p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this->base_reference()!=p.base_reference(); }</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  Iterator& base() { <span class="keywordflow">return</span> this->base_reference(); }</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">const</span> Iterator& base()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this->base_reference(); }</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">const</span> DFn& deref_fn()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _deref_fn; }</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator1, <span class="keyword">typename</span> DFn1></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">friend</span> <span class="keyword">class </span>boost::iterator_core_access;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  reference dereference()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _deref_fn(*(this->base_reference())); }</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> };</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">template</span> <<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1const__iterator__type.html">const_iterator_type</a><dereference_iterator_adaptor<I,DFn> > {</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">using</span> type = <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<typename const_iterator_type<I>::type</a>,<span class="keyword">typename</span> DFn::const_t>;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> };</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="keyword">template</span> <<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1iterator__is__mutable.html">iterator_is_mutable</a><dereference_iterator_adaptor<I, DFn>></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  : std::integral_constant<bool, DFn::is_mutable></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> {};</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> <span class="keyword">template</span> <<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1is__iterator__adaptor.html">is_iterator_adaptor</a><dereference_iterator_adaptor<I, DFn>> : std::true_type {};</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="keyword">template</span> <<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1iterator__adaptor__get__base.html">iterator_adaptor_get_base</a><dereference_iterator_adaptor<I, DFn>></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> {</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keyword">using</span> type = I;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> };</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="keyword">template</span> <<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn, <span class="keyword">typename</span> NewBaseIterator></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1iterator__adaptor__rebind.html">iterator_adaptor_rebind</a><dereference_iterator_adaptor<I,DFn>,NewBaseIterator> {</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keyword">using</span> type = <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<NewBaseIterator,DFn></a>;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> };</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment">// PixelBasedConcept</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"></span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="keyword">template</span> <<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="keyword">struct </span>color_space_type<dereference_iterator_adaptor<I,DFn> > : <span class="keyword">public</span> color_space_type<typename DFn::value_type> {};</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="keyword">template</span> <<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">struct </span>channel_mapping_type<dereference_iterator_adaptor<I,DFn> > : <span class="keyword">public</span> channel_mapping_type<typename DFn::value_type> {};</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="keyword">template</span> <<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">struct </span>is_planar<dereference_iterator_adaptor<I,DFn> > : <span class="keyword">public</span> is_planar<typename DFn::value_type> {};</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> <span class="keyword">template</span> <<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1channel__type.html">channel_type</a><dereference_iterator_adaptor<I,DFn> > : <span class="keyword">public</span> <a class="code" href="structboost_1_1gil_1_1channel__type.html">channel_type</a><typename DFn::value_type> {};</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment">// MemoryBasedIteratorConcept</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment"></span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1byte__to__memunit.html">byte_to_memunit</a><dereference_iterator_adaptor<Iterator,DFn> > : <span class="keyword">public</span> <a class="code" href="structboost_1_1gil_1_1byte__to__memunit.html">byte_to_memunit</a><Iterator> {};</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="keyword">inline</span> <span class="keyword">typename</span> std::iterator_traits<Iterator>::difference_type</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> memunit_step(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator,DFn></a>& p) {</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">return</span> memunit_step(p.base());</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> }</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="keyword">inline</span> <span class="keyword">typename</span> std::iterator_traits<Iterator>::difference_type</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> memunit_distance(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator,DFn></a>& p1,</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator,DFn></a>& p2) {</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> memunit_distance(p1.base(),p2.base());</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> }</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> memunit_advance(<a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator,DFn></a>& p,</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keyword">typename</span> std::iterator_traits<Iterator>::difference_type diff) {</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  memunit_advance(p.base(), diff);</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> }</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="keyword">inline</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator,DFn></a></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> memunit_advanced(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator,DFn></a>& p,</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">typename</span> std::iterator_traits<Iterator>::difference_type diff) {</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">return</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator,DFn></a>(memunit_advanced(p.base(), diff), p.deref_fn());</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> }</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="keyword">inline</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="keyword">typename</span> std::iterator_traits<dereference_iterator_adaptor<Iterator,DFn> >::reference</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> memunit_advanced_ref(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator,DFn></a>& p,</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">typename</span> std::iterator_traits<Iterator>::difference_type diff) {</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">return</span> *memunit_advanced(p, diff);</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> }</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment">// HasDynamicXStepTypeConcept</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="comment"></span></div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1dynamic__x__step__type.html">dynamic_x_step_type</a><dereference_iterator_adaptor<Iterator,DFn> > {</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keyword">using</span> type = <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<typename dynamic_x_step_type<Iterator>::type</a>,DFn>;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> };</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> Deref></div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1iterator__add__deref.html">iterator_add_deref</a> {</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  BOOST_GIL_CLASS_REQUIRE(Deref, <a class="code" href="namespaceboost_1_1gil.html">boost::gil</a>, <a class="code" href="structboost_1_1gil_1_1_pixel_dereference_adaptor_concept.html">PixelDereferenceAdaptorConcept</a>)</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keyword">using</span> type = <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator, Deref></a>;</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> Iterator& it, <span class="keyword">const</span> Deref& d) { <span class="keywordflow">return</span> type(it,d); }</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> };</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> PREV_DEREF, <span class="keyword">typename</span> Deref></div><div class="line"><a name="l00184"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1iterator__add__deref_3_01dereference__iterator__adaptor_3_01_iterator_00_0927b7f3fa453e9b4decea8a0c8e52f27.html"> 184</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1iterator__add__deref.html">iterator_add_deref</a><dereference_iterator_adaptor<Iterator, PREV_DEREF>,Deref> {</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="comment">// BOOST_GIL_CLASS_REQUIRE(Deref, boost::gil, PixelDereferenceAdaptorConcept)</span></div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keyword">using</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">type</a> = <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator, deref_compose<Deref,PREV_DEREF></a>>;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keyword">static</span> type make(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor<Iterator, PREV_DEREF></a>& it, <span class="keyword">const</span> Deref& d) {</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordflow">return</span> type(it.base(),<a class="code" href="classboost_1_1gil_1_1deref__compose.html">deref_compose<Deref,PREV_DEREF></a>(d,it.deref_fn()));</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> };</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> </div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> }} <span class="comment">// namespace boost::gil</span></div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="structboost_1_1gil_1_1_pixel_dereference_adaptor_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_pixel_dereference_adaptor_concept.html">boost::gil::PixelDereferenceAdaptorConcept</a></div><div class="ttdoc">Represents a unary function object that can be invoked upon dereferencing a pixel iterator...</div><div class="ttdef"><b>Definition:</b> pixel_dereference.hpp:53</div></div>
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<div class="ttc" id="structboost_1_1gil_1_1byte__to__memunit_html"><div class="ttname"><a href="structboost_1_1gil_1_1byte__to__memunit.html">boost::gil::byte_to_memunit</a></div><div class="ttdef"><b>Definition:</b> pixel_iterator.hpp:124</div></div>
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<div class="ttc" id="structboost_1_1gil_1_1is__iterator__adaptor_html"><div class="ttname"><a href="structboost_1_1gil_1_1is__iterator__adaptor.html">boost::gil::is_iterator_adaptor</a></div><div class="ttdoc">metafunction predicate determining whether the given iterator is a plain one or an adaptor over anoth...</div><div class="ttdef"><b>Definition:</b> metafunctions.hpp:34</div></div>
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<div class="ttc" id="namespaceboost_1_1gil_html"><div class="ttname"><a href="namespaceboost_1_1gil.html">boost::gil</a></div><div class="ttdef"><b>Definition:</b> algorithm.hpp:30</div></div>
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<div class="ttc" id="namespaceboost_html"><div class="ttname"><a href="namespaceboost.html">boost</a></div><div class="ttdef"><b>Definition:</b> algorithm.hpp:30</div></div>
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<div class="ttc" id="structboost_1_1gil_1_1iterator__adaptor__get__base_html"><div class="ttname"><a href="structboost_1_1gil_1_1iterator__adaptor__get__base.html">boost::gil::iterator_adaptor_get_base</a></div><div class="ttdoc">returns the base iterator for a given iterator adaptor. Provide an specialization when introducing ne...</div><div class="ttdef"><b>Definition:</b> metafunctions.hpp:35</div></div>
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<div class="ttc" id="structboost_1_1gil_1_1iterator__add__deref_html"><div class="ttname"><a href="structboost_1_1gil_1_1iterator__add__deref.html">boost::gil::iterator_add_deref</a></div><div class="ttdoc">Returns the type (and creates an instance) of an iterator that invokes the given dereference adaptor ...</div><div class="ttdef"><b>Definition:</b> locator.hpp:27</div></div>
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<div class="ttc" id="classboost_1_1gil_1_1dereference__iterator__adaptor_html"><div class="ttname"><a href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">boost::gil::dereference_iterator_adaptor</a></div><div class="ttdoc">An adaptor over an existing iterator that provides for custom filter on dereferencing the object...</div><div class="ttdef"><b>Definition:</b> pixel_iterator_adaptor.hpp:29</div></div>
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<div class="ttc" id="classboost_1_1gil_1_1dereference__iterator__adaptor_html_ade1279c4ed222b6efb0867c038765ea1"><div class="ttname"><a href="classboost_1_1gil_1_1dereference__iterator__adaptor.html#ade1279c4ed222b6efb0867c038765ea1">boost::gil::dereference_iterator_adaptor::operator[]</a></div><div class="ttdeci">reference operator[](difference_type d) const </div><div class="ttdef"><b>Definition:</b> pixel_iterator_adaptor.hpp:55</div></div>
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<div class="ttc" id="classboost_1_1gil_1_1deref__compose_html"><div class="ttname"><a href="classboost_1_1gil_1_1deref__compose.html">boost::gil::deref_compose</a></div><div class="ttdoc">Composes two dereference function objects. Similar to std::unary_compose but needs to pull some alias...</div><div class="ttdef"><b>Definition:</b> utilities.hpp:121</div></div>
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<div class="ttc" id="structboost_1_1gil_1_1channel__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1channel__type.html">boost::gil::channel_type</a></div><div class="ttdef"><b>Definition:</b> color_convert.hpp:31</div></div>
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<div class="ttc" id="structboost_1_1gil_1_1iterator__adaptor__rebind_html"><div class="ttname"><a href="structboost_1_1gil_1_1iterator__adaptor__rebind.html">boost::gil::iterator_adaptor_rebind</a></div><div class="ttdoc">Changes the base iterator of an iterator adaptor. Provide an specialization when introducing new iter...</div><div class="ttdef"><b>Definition:</b> pixel_iterator.hpp:36</div></div>
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<div class="ttc" id="structboost_1_1gil_1_1iterator__is__mutable_html"><div class="ttname"><a href="structboost_1_1gil_1_1iterator__is__mutable.html">boost::gil::iterator_is_mutable</a></div><div class="ttdoc">Metafunction predicate returning whether the given iterator allows for changing its values...</div><div class="ttdef"><b>Definition:</b> pixel_iterator.hpp:49</div></div>
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<div class="ttc" id="structboost_1_1gil_1_1const__iterator__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1const__iterator__type.html">boost::gil::const_iterator_type</a></div><div class="ttdoc">Returns the type of an iterator just like the input iterator, except operating over immutable values...</div><div class="ttdef"><b>Definition:</b> pixel_iterator.hpp:40</div></div>
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<div class="ttc" id="structboost_1_1gil_1_1dynamic__x__step__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1dynamic__x__step__type.html">boost::gil::dynamic_x_step_type</a></div><div class="ttdoc">Base template for types that model HasDynamicXStepTypeConcept. </div><div class="ttdef"><b>Definition:</b> dynamic_step.hpp:17</div></div>
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