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<div class="title">pixel_iterator_adaptor.hpp</div> </div>
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<a href="pixel__iterator__adaptor_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> Copyright 2005-2007 Adobe Systems Incorporated</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> </span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> Use, modification and distribution are subject to the Boost Software License,</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<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>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> See http://opensource.adobe.com/gil for most recent version including documentation.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;</div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment">/*************************************************************************************************/</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;</div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#ifndef GIL_PIXEL_ITERATOR_ADAPTOR_H</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define GIL_PIXEL_ITERATOR_ADAPTOR_H</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &lt;iterator&gt;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#include &lt;boost/iterator/iterator_facade.hpp&gt;</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="gil__config_8hpp.html">gil_config.hpp</a>&quot;</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="gil__concept_8hpp.html">gil_concept.hpp</a>&quot;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="pixel__iterator_8hpp.html">pixel_iterator.hpp</a>&quot;</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator, <span class="comment">// Models Iterator</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="keyword">typename</span> DFn&gt; <span class="comment">// Models Returns the result of dereferencing a given iterator of type Iterator</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html"> 44</a></span>&#160;<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&lt;dereference_iterator_adaptor&lt;Iterator,DFn&gt;,</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; Iterator,</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; typename DFn::value_type,</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; typename std::iterator_traits&lt;Iterator&gt;::iterator_category,</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; typename DFn::reference,</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; use_default&gt; {</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; DFn _deref_fn;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keyword">typedef</span> iterator_adaptor&lt;dereference_iterator_adaptor&lt;Iterator,DFn&gt;,</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; Iterator,</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keyword">typename</span> DFn::value_type,</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keyword">typename</span> std::iterator_traits&lt;Iterator&gt;::iterator_category,</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <span class="keyword">typename</span> DFn::reference,</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; use_default&gt; parent_t;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <span class="keyword">typedef</span> <span class="keyword">typename</span> DFn::result_type reference;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keyword">typedef</span> <span class="keyword">typename</span> std::iterator_traits&lt;Iterator&gt;::difference_type difference_type;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keyword">typedef</span> DFn dereference_fn;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>() {}</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator1&gt; </div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <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&lt;Iterator1,DFn&gt;</a>&amp; dit) : parent_t(dit.base()), _deref_fn(dit._deref_fn) {}</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <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="l00066"></a><span class="lineno"> 66</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator1, <span class="keyword">typename</span> DFn1&gt; </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <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&lt;Iterator1,DFn1&gt;</a>&amp; it) : parent_t(it.base()), _deref_fn(it._deref_fn) {}</div>
<div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html#ade1279c4ed222b6efb0867c038765ea1"> 70</a></span>&#160; 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="l00071"></a><span class="lineno"> 71</span>&#160;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="comment">// although iterator_adaptor defines these, the default implementation computes distance and compares for zero.</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; <span class="comment">// it is often faster to just apply the relation operator to the base</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="keywordtype">bool</span> operator&gt; (<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>&amp; p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this-&gt;base_reference()&gt; p.base_reference(); }</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="keywordtype">bool</span> operator&lt; (<span class="keyword">const</span> dereference_iterator_adaptor&amp; p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this-&gt;base_reference()&lt; p.base_reference(); }</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="keywordtype">bool</span> operator&gt;=(<span class="keyword">const</span> dereference_iterator_adaptor&amp; p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this-&gt;base_reference()&gt;=p.base_reference(); }</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <span class="keywordtype">bool</span> operator&lt;=(<span class="keyword">const</span> dereference_iterator_adaptor&amp; p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this-&gt;base_reference()&lt;=p.base_reference(); }</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> dereference_iterator_adaptor&amp; p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this-&gt;base_reference()==p.base_reference(); }</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> dereference_iterator_adaptor&amp; p)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this-&gt;base_reference()!=p.base_reference(); }</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; Iterator&amp; base() { <span class="keywordflow">return</span> this-&gt;base_reference(); }</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; <span class="keyword">const</span> Iterator&amp; base()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this-&gt;base_reference(); }</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="keyword">const</span> DFn&amp; deref_fn()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _deref_fn; }</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator1, <span class="keyword">typename</span> DFn1&gt; </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="keyword">friend</span> <span class="keyword">class </span>dereference_iterator_adaptor;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="keyword">friend</span> <span class="keyword">class </span>boost::iterator_core_access;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; reference dereference()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _deref_fn(*(this-&gt;base_reference())); }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;};</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn&gt; </div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;<span class="keyword">struct </span>const_iterator_type&lt;dereference_iterator_adaptor&lt;I,DFn&gt; &gt; { </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keyword">typedef</span> dereference_iterator_adaptor&lt;typename const_iterator_type&lt;I&gt;::type,<span class="keyword">typename</span> DFn::const_t&gt; type; </div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;};</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn&gt; </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160;<span class="keyword">struct </span>iterator_is_mutable&lt;dereference_iterator_adaptor&lt;I,DFn&gt; &gt; : <span class="keyword">public</span> mpl::bool_&lt;DFn::is_mutable&gt; {};</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;<span class="keyword">struct </span>is_iterator_adaptor&lt;dereference_iterator_adaptor&lt;I,DFn&gt; &gt; : <span class="keyword">public</span> mpl::true_{};</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;<span class="keyword">struct </span>iterator_adaptor_get_base&lt;dereference_iterator_adaptor&lt;I,DFn&gt; &gt; {</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="keyword">typedef</span> I type;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;};</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn, <span class="keyword">typename</span> NewBaseIterator&gt;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160;<span class="keyword">struct </span>iterator_adaptor_rebind&lt;dereference_iterator_adaptor&lt;I,DFn&gt;,NewBaseIterator&gt; {</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keyword">typedef</span> dereference_iterator_adaptor&lt;NewBaseIterator,DFn&gt; type;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160;};</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;<span class="comment">// PixelBasedConcept</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;<span class="keyword">struct </span>color_space_type&lt;dereference_iterator_adaptor&lt;I,DFn&gt; &gt; : <span class="keyword">public</span> color_space_type&lt;typename DFn::value_type&gt; {};</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160;<span class="keyword">struct </span>channel_mapping_type&lt;dereference_iterator_adaptor&lt;I,DFn&gt; &gt; : <span class="keyword">public</span> channel_mapping_type&lt;typename DFn::value_type&gt; {};</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160;<span class="keyword">struct </span>is_planar&lt;dereference_iterator_adaptor&lt;I,DFn&gt; &gt; : <span class="keyword">public</span> is_planar&lt;typename DFn::value_type&gt; {};</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> I, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160;<span class="keyword">struct </span>channel_type&lt;dereference_iterator_adaptor&lt;I,DFn&gt; &gt; : <span class="keyword">public</span> channel_type&lt;typename DFn::value_type&gt; {};</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160;<span class="comment">// MemoryBasedIteratorConcept</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;<span class="keyword">struct </span>byte_to_memunit&lt;dereference_iterator_adaptor&lt;Iterator,DFn&gt; &gt; : <span class="keyword">public</span> byte_to_memunit&lt;Iterator&gt; {};</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160;<span class="keyword">inline</span> <span class="keyword">typename</span> std::iterator_traits&lt;Iterator&gt;::difference_type </div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160;memunit_step(<span class="keyword">const</span> dereference_iterator_adaptor&lt;Iterator,DFn&gt;&amp; p) { </div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; <span class="keywordflow">return</span> memunit_step(p.base());</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160;}</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160;</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160;<span class="keyword">inline</span> <span class="keyword">typename</span> std::iterator_traits&lt;Iterator&gt;::difference_type </div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160;memunit_distance(<span class="keyword">const</span> dereference_iterator_adaptor&lt;Iterator,DFn&gt;&amp; p1, </div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <span class="keyword">const</span> dereference_iterator_adaptor&lt;Iterator,DFn&gt;&amp; p2) { </div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; <span class="keywordflow">return</span> memunit_distance(p1.base(),p2.base()); </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160;}</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160;</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> memunit_advance(dereference_iterator_adaptor&lt;Iterator,DFn&gt;&amp; p, </div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keyword">typename</span> std::iterator_traits&lt;Iterator&gt;::difference_type diff) { </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; memunit_advance(p.base(), diff);</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160;}</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160;<span class="keyword">inline</span> dereference_iterator_adaptor&lt;Iterator,DFn&gt; </div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160;memunit_advanced(<span class="keyword">const</span> dereference_iterator_adaptor&lt;Iterator,DFn&gt;&amp; p, </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keyword">typename</span> std::iterator_traits&lt;Iterator&gt;::difference_type diff) { </div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; <span class="keywordflow">return</span> dereference_iterator_adaptor&lt;Iterator,DFn&gt;(memunit_advanced(p.base(), diff), p.deref_fn()); </div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;}</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160;</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160;<span class="keyword">inline</span> </div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160;<span class="keyword">typename</span> std::iterator_traits&lt;dereference_iterator_adaptor&lt;Iterator,DFn&gt; &gt;::reference </div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160;memunit_advanced_ref(<span class="keyword">const</span> dereference_iterator_adaptor&lt;Iterator,DFn&gt;&amp; p, </div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="keyword">typename</span> std::iterator_traits&lt;Iterator&gt;::difference_type diff) { </div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="keywordflow">return</span> *memunit_advanced(p, diff);</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160;}</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160;<span class="comment">// HasDynamicXStepTypeConcept</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> DFn&gt;</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160;<span class="keyword">struct </span>dynamic_x_step_type&lt;dereference_iterator_adaptor&lt;Iterator,DFn&gt; &gt; {</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="keyword">typedef</span> dereference_iterator_adaptor&lt;typename dynamic_x_step_type&lt;Iterator&gt;::type,DFn&gt; type;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160;};</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> Deref&gt;</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160;<span class="keyword">struct </span>iterator_add_deref {</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; GIL_CLASS_REQUIRE(Deref, boost::gil, PixelDereferenceAdaptorConcept)</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; typedef dereference_iterator_adaptor&lt;Iterator, Deref&gt; type;</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; static type make(const Iterator&amp; it, const Deref&amp; d) { <span class="keywordflow">return</span> type(it,d); }</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;};</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Iterator, <span class="keyword">typename</span> PREV_DEREF, <span class="keyword">typename</span> Deref&gt;</div>
<div class="line"><a name="l00196"></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"> 196</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1iterator__add__deref.html">iterator_add_deref</a>&lt;<a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor</a>&lt;Iterator, PREV_DEREF&gt;,Deref&gt; {</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160;<span class="comment">// GIL_CLASS_REQUIRE(Deref, boost::gil, PixelDereferenceAdaptorConcept)</span></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; <span class="keyword">typedef</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor&lt;Iterator, deref_compose&lt;Deref,PREV_DEREF&gt;</a> &gt; <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">type</a>;</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160;</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; <span class="keyword">static</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">type</a> make(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">dereference_iterator_adaptor&lt;Iterator, PREV_DEREF&gt;</a>&amp; it, <span class="keyword">const</span> Deref&amp; d) { </div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; <span class="keywordflow">return</span> <a class="code" href="classboost_1_1gil_1_1dereference__iterator__adaptor.html">type</a>(it.base(),<a class="code" href="classboost_1_1gil_1_1deref__compose.html">deref_compose&lt;Deref,PREV_DEREF&gt;</a>(d,it.deref_fn())); </div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; }</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160;};</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160;} } <span class="comment">// namespace boost::gil</span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160;</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160;<span class="preprocessor">#endif</span></div>
<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:38</div></div>
<div class="ttc" id="gil__concept_8hpp_html"><div class="ttname"><a href="gil__concept_8hpp.html">gil_concept.hpp</a></div><div class="ttdoc">Concept check classes for GIL concepts. </div></div>
<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:44</div></div>
<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:70</div></div>
<div class="ttc" id="pixel__iterator_8hpp_html"><div class="ttname"><a href="pixel__iterator_8hpp.html">pixel_iterator.hpp</a></div><div class="ttdoc">pixel iterator support </div></div>
<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 typed...</div><div class="ttdef"><b>Definition:</b> utilities.hpp:196</div></div>
<div class="ttc" id="gil__config_8hpp_html"><div class="ttname"><a href="gil__config_8hpp.html">gil_config.hpp</a></div><div class="ttdoc">GIL configuration file. </div></div>
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