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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_1878a3f4746a95c6aad317458cc7ef80.html">boost</a></li><li class="navelem"><a class="el" href="dir_df4750f408086f9b9c1b5ee4251365ff.html">gil</a></li><li class="navelem"><a class="el" href="dir_65525b100b86579f1f0652bf33388089.html">concepts</a></li> </ul>
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<div class="headertitle"><div class="title">concepts/pixel_iterator.hpp</div></div>
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<div class="contents">
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">//</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">// Copyright 2005-2007 Adobe Systems Incorporated</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment">//</span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment">// Distributed under the Boost Software License, Version 1.0</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment">// See accompanying file LICENSE_1_0.txt or copy at</span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment">// http://www.boost.org/LICENSE_1_0.txt</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">//</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#ifndef BOOST_GIL_CONCEPTS_PIXEL_ITERATOR_HPP</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#define BOOST_GIL_CONCEPTS_PIXEL_ITERATOR_HPP</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include <boost/gil/concepts/channel.hpp></span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include <boost/gil/concepts/color.hpp></span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include <boost/gil/concepts/concept_check.hpp></span></div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include <boost/gil/concepts/fwd.hpp></span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include <boost/gil/concepts/pixel.hpp></span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <boost/gil/concepts/pixel_based.hpp></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> </div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include <boost/iterator/iterator_concepts.hpp></span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <cstddef></span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include <iterator></span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include <type_traits></span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#if defined(BOOST_CLANG)</span></div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#pragma clang diagnostic push</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#pragma clang diagnostic ignored "-Wunknown-pragmas"</span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#pragma clang diagnostic ignored "-Wunused-local-typedefs"</span></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#if defined(BOOST_GCC) && (BOOST_GCC >= 40900)</span></div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#pragma GCC diagnostic push</span></div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#pragma GCC diagnostic ignored "-Wunused-local-typedefs"</span></div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> </div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceboost.html">boost</a> { <span class="keyword">namespace </span>gil {</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="comment">// Forward declarations</span></div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="keyword">template</span> <<span class="keyword">typename</span> It> <span class="keyword">struct </span>const_iterator_type;</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="keyword">template</span> <<span class="keyword">typename</span> It> <span class="keyword">struct </span>iterator_is_mutable;</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="keyword">template</span> <<span class="keyword">typename</span> It> <span class="keyword">struct </span>is_iterator_adaptor;</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="keyword">template</span> <<span class="keyword">typename</span> It, <span class="keyword">typename</span> NewBaseIt> <span class="keyword">struct </span>iterator_adaptor_rebind;</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="keyword">template</span> <<span class="keyword">typename</span> It> <span class="keyword">struct </span>iterator_adaptor_get_base;</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="comment">// These iterator mutability concepts are taken from Boost concept_check.hpp.</span></div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="comment">// Isolating mutability to result in faster compile time</span></div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="keyword">namespace </span>detail {</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="comment">// Preconditions: TT Models boost_concepts::ForwardTraversalConcept</span></div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="keyword">template</span> <<span class="keyword">class</span> TT></div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="keyword">struct </span>ForwardIteratorIsMutableConcept</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span>{</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> {</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">auto</span> <span class="keyword">const</span> tmp = *i;</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> *i++ = tmp; <span class="comment">// require postincrement and assignment</span></div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> }</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> TT i;</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span>};</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span><span class="comment">// Preconditions: TT Models boost::BidirectionalIteratorConcept</span></div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span><span class="keyword">template</span> <<span class="keyword">class</span> TT></div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="keyword">struct </span>BidirectionalIteratorIsMutableConcept</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span>{</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> {</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> gil_function_requires< ForwardIteratorIsMutableConcept<TT>>();</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keyword">auto</span> <span class="keyword">const</span> tmp = *i;</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> *i-- = tmp; <span class="comment">// require postdecrement and assignment</span></div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> }</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> TT i;</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span>};</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> </div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span><span class="comment">// Preconditions: TT Models boost_concepts::RandomAccessTraversalConcept</span></div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span><span class="keyword">template</span> <<span class="keyword">class</span> TT></div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span><span class="keyword">struct </span>RandomAccessIteratorIsMutableConcept</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span>{</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> {</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> gil_function_requires<BidirectionalIteratorIsMutableConcept<TT>>();</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keyword">typename</span> std::iterator_traits<TT>::difference_type n = 0;</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> ignore_unused_variable_warning(n);</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> i[n] = *i; <span class="comment">// require element access and assignment</span></div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> }</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> TT i;</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span>};</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> </div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span><span class="comment">// Iterators that can be used as the base of memory_based_step_iterator require some additional functions</span></div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span><span class="comment">// \tparam Iterator Models boost_concepts::RandomAccessTraversalConcept</span></div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span><span class="keyword">template</span> <<span class="keyword">typename</span> Iterator></div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span><span class="keyword">struct </span>RandomAccessIteratorIsMemoryBasedConcept</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span>{</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> {</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> std::ptrdiff_t bs = memunit_step(it);</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> ignore_unused_variable_warning(bs);</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> it = memunit_advanced(it, 3);</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> std::ptrdiff_t bd = memunit_distance(it, it);</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> ignore_unused_variable_warning(bd);</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> memunit_advance(it,3);</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="comment">// for performance you may also provide a customized implementation of memunit_advanced_ref</span></div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> }</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> Iterator it;</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span>};</div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> </div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span><span class="keyword">template</span> <<span class="keyword">typename</span> Iterator></div>
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<div class="foldopen" id="foldopen00110" data-start="{" data-end="};">
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1_pixel_iterator_is_mutable_concept.html"> 110</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structboost_1_1gil_1_1detail_1_1_pixel_iterator_is_mutable_concept.html">PixelIteratorIsMutableConcept</a></div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span>{</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> {</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> gil_function_requires<detail::RandomAccessIteratorIsMutableConcept<Iterator>>();</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> </div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">using </span>ref_t = <span class="keyword">typename</span> std::remove_reference</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> <span class="keyword">typename</span> std::iterator_traits<Iterator>::reference</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> >::type;</div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keyword">using </span>channel_t = <span class="keyword">typename</span> <a class="code hl_struct" href="structboost_1_1gil_1_1element__type.html">element_type<ref_t>::type</a>;</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> gil_function_requires<detail::ChannelIsMutableConcept<channel_t>>();</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> }</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span>};</div>
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</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> </div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span>} <span class="comment">// namespace detail</span></div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> </div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span><span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="foldopen" id="foldopen00137" data-start="{" data-end="};">
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_has_transposed_type_concept.html"> 137</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structboost_1_1gil_1_1_has_transposed_type_concept.html">HasTransposedTypeConcept</a></div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span>{</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> {</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keyword">using </span>type = <span class="keyword">typename</span> transposed_type<T>::type;</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> ignore_unused_variable_warning(type{});</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> }</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span>};</div>
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</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> </div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> </div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span><span class="keyword">template</span> <<span class="keyword">typename</span> Iterator></div>
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<div class="foldopen" id="foldopen00170" data-start="{" data-end="};">
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_pixel_iterator_concept.html"> 170</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structboost_1_1gil_1_1_pixel_iterator_concept.html">PixelIteratorConcept</a></div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span>{</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> {</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> gil_function_requires<boost_concepts::RandomAccessTraversalConcept<Iterator>>();</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> gil_function_requires<PixelBasedConcept<Iterator>>();</div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> </div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keyword">using </span>value_type = <span class="keyword">typename</span> std::iterator_traits<Iterator>::value_type;</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> gil_function_requires<PixelValueConcept<value_type>>();</div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> </div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keyword">using </span>const_t = <span class="keyword">typename</span> <a class="code hl_struct" href="structboost_1_1gil_1_1const__iterator__type.html">const_iterator_type<Iterator>::type</a>;</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <span class="keyword">const</span> is_mutable = <a class="code hl_struct" href="structboost_1_1gil_1_1iterator__is__mutable.html">iterator_is_mutable<Iterator>::value</a>;</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> ignore_unused_variable_warning(is_mutable);</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> </div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="comment">// immutable iterator must be constructible from (possibly mutable) iterator</span></div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> const_t const_it(it);</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> ignore_unused_variable_warning(const_it);</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> </div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> check_base(<span class="keyword">typename</span> <a class="code hl_struct" href="structboost_1_1gil_1_1is__iterator__adaptor.html">is_iterator_adaptor<Iterator>::type</a>());</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> }</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> </div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keywordtype">void</span> check_base(std::false_type) {}</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> </div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keywordtype">void</span> check_base(std::true_type)</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> {</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keyword">using </span>base_t = <span class="keyword">typename</span> <a class="code hl_struct" href="structboost_1_1gil_1_1iterator__adaptor__get__base.html">iterator_adaptor_get_base<Iterator>::type</a>;</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> gil_function_requires<PixelIteratorConcept<base_t>>();</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> }</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> </div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> Iterator it;</div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span>};</div>
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</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> </div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span><span class="keyword">template</span> <<span class="keyword">typename</span> Iterator></div>
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<div class="foldopen" id="foldopen00209" data-start="{" data-end="};">
|
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_mutable_pixel_iterator_concept.html"> 209</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structboost_1_1gil_1_1_mutable_pixel_iterator_concept.html">MutablePixelIteratorConcept</a></div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span>{</div>
|
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> {</div>
|
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> gil_function_requires<PixelIteratorConcept<Iterator>>();</div>
|
|
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> gil_function_requires<detail::PixelIteratorIsMutableConcept<Iterator>>();</div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> }</div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span>};</div>
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</div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> </div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> </div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span><span class="keyword">template</span> <<span class="keyword">typename</span> Iterator></div>
|
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<div class="foldopen" id="foldopen00236" data-start="{" data-end="};">
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_memory_based_iterator_concept.html"> 236</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structboost_1_1gil_1_1_memory_based_iterator_concept.html">MemoryBasedIteratorConcept</a></div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span>{</div>
|
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> {</div>
|
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> gil_function_requires<boost_concepts::RandomAccessTraversalConcept<Iterator>>();</div>
|
|
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> gil_function_requires<detail::RandomAccessIteratorIsMemoryBasedConcept<Iterator>>();</div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> }</div>
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<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span>};</div>
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</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> </div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span><span class="keyword">template</span> <<span class="keyword">typename</span> Iterator></div>
|
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<div class="foldopen" id="foldopen00257" data-start="{" data-end="};">
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_step_iterator_concept.html"> 257</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structboost_1_1gil_1_1_step_iterator_concept.html">StepIteratorConcept</a></div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span>{</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> {</div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> gil_function_requires<boost_concepts::ForwardTraversalConcept<Iterator>>();</div>
|
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> it.set_step(0);</div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> }</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> Iterator it;</div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span>};</div>
|
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</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> </div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> </div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span><span class="keyword">template</span> <<span class="keyword">typename</span> Iterator></div>
|
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<div class="foldopen" id="foldopen00275" data-start="{" data-end="};">
|
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_mutable_step_iterator_concept.html"> 275</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structboost_1_1gil_1_1_mutable_step_iterator_concept.html">MutableStepIteratorConcept</a></div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span>{</div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> {</div>
|
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> gil_function_requires<StepIteratorConcept<Iterator>>();</div>
|
|
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> gil_function_requires<detail::ForwardIteratorIsMutableConcept<Iterator>>();</div>
|
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> }</div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span>};</div>
|
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</div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> </div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> </div>
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<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span><span class="keyword">template</span> <<span class="keyword">typename</span> Iterator></div>
|
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<div class="foldopen" id="foldopen00317" data-start="{" data-end="};">
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<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_iterator_adaptor_concept.html"> 317</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structboost_1_1gil_1_1_iterator_adaptor_concept.html">IteratorAdaptorConcept</a></div>
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<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span>{</div>
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<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> {</div>
|
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<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> gil_function_requires<boost_concepts::ForwardTraversalConcept<Iterator>>();</div>
|
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<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> </div>
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<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> <span class="keyword">using </span>base_t = <span class="keyword">typename</span> <a class="code hl_struct" href="structboost_1_1gil_1_1iterator__adaptor__get__base.html">iterator_adaptor_get_base<Iterator>::type</a>;</div>
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<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> gil_function_requires<boost_concepts::ForwardTraversalConcept<base_t>>();</div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> </div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="keyword">static_assert</span>(<a class="code hl_struct" href="structboost_1_1gil_1_1is__iterator__adaptor.html">is_iterator_adaptor<Iterator>::value</a>, <span class="stringliteral">""</span>);</div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> <span class="keyword">using </span>rebind_t = <span class="keyword">typename</span> <a class="code hl_struct" href="structboost_1_1gil_1_1iterator__adaptor__rebind.html">iterator_adaptor_rebind<Iterator, void*>::type</a>;</div>
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<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> </div>
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> base_t base = it.base();</div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> ignore_unused_variable_warning(base);</div>
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<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> }</div>
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<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> Iterator it;</div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span>};</div>
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</div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> </div>
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<div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span><span class="keyword">template</span> <<span class="keyword">typename</span> Iterator></div>
|
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<div class="foldopen" id="foldopen00342" data-start="{" data-end="};">
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<div class="line"><a id="l00342" name="l00342"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_mutable_iterator_adaptor_concept.html"> 342</a></span><span class="keyword">struct </span><a class="code hl_struct" href="structboost_1_1gil_1_1_mutable_iterator_adaptor_concept.html">MutableIteratorAdaptorConcept</a></div>
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<div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span>{</div>
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<div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> <span class="keywordtype">void</span> constraints()</div>
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<div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> {</div>
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<div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> gil_function_requires<IteratorAdaptorConcept<Iterator>>();</div>
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<div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> gil_function_requires<detail::ForwardIteratorIsMutableConcept<Iterator>>();</div>
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<div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> }</div>
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span>};</div>
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</div>
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<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> </div>
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<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span>}} <span class="comment">// namespace boost::gil</span></div>
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<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> </div>
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<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span><span class="preprocessor">#if defined(BOOST_CLANG)</span></div>
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<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span><span class="preprocessor">#pragma clang diagnostic pop</span></div>
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<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> </div>
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<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span><span class="preprocessor">#if defined(BOOST_GCC) && (BOOST_GCC >= 40900)</span></div>
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<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span><span class="preprocessor">#pragma GCC diagnostic pop</span></div>
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<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span><span class="preprocessor">#endif</span></div>
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<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> </div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span><span class="preprocessor">#endif</span></div>
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<div class="ttc" id="anamespaceboost_html"><div class="ttname"><a href="namespaceboost.html">boost</a></div><div class="ttdoc">defined(BOOST_NO_CXX17_HDR_MEMORY_RESOURCE)</div><div class="ttdef"><b>Definition</b> algorithm.hpp:36</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1_has_transposed_type_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_has_transposed_type_concept.html">boost::gil::HasTransposedTypeConcept</a></div><div class="ttdoc">Concept for locators and views that can define a type just like the given locator or view,...</div><div class="ttdef"><b>Definition</b> concepts/pixel_iterator.hpp:138</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1_iterator_adaptor_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_iterator_adaptor_concept.html">boost::gil::IteratorAdaptorConcept</a></div><div class="ttdoc">Iterator adaptor is a forward iterator adapting another forward iterator.</div><div class="ttdef"><b>Definition</b> concepts/pixel_iterator.hpp:318</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1_memory_based_iterator_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_memory_based_iterator_concept.html">boost::gil::MemoryBasedIteratorConcept</a></div><div class="ttdoc">Concept of a random-access iterator that can be advanced in memory units (bytes or bits)</div><div class="ttdef"><b>Definition</b> concepts/pixel_iterator.hpp:237</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1_mutable_iterator_adaptor_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_mutable_iterator_adaptor_concept.html">boost::gil::MutableIteratorAdaptorConcept</a></div><div class="ttdoc">Iterator adaptor that is mutable.</div><div class="ttdef"><b>Definition</b> concepts/pixel_iterator.hpp:343</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1_mutable_pixel_iterator_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_mutable_pixel_iterator_concept.html">boost::gil::MutablePixelIteratorConcept</a></div><div class="ttdoc">Pixel iterator that allows for changing its pixel.</div><div class="ttdef"><b>Definition</b> concepts/pixel_iterator.hpp:210</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1_mutable_step_iterator_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_mutable_step_iterator_concept.html">boost::gil::MutableStepIteratorConcept</a></div><div class="ttdoc">Step iterator that allows for modifying its current value.</div><div class="ttdef"><b>Definition</b> concepts/pixel_iterator.hpp:276</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1_pixel_iterator_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_pixel_iterator_concept.html">boost::gil::PixelIteratorConcept</a></div><div class="ttdoc">An STL random access traversal iterator over a model of PixelConcept.</div><div class="ttdef"><b>Definition</b> concepts/pixel_iterator.hpp:171</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1_step_iterator_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_step_iterator_concept.html">boost::gil::StepIteratorConcept</a></div><div class="ttdoc">Step iterator concept.</div><div class="ttdef"><b>Definition</b> concepts/pixel_iterator.hpp:258</div></div>
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<div class="ttc" id="astructboost_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="astructboost_1_1gil_1_1detail_1_1_pixel_iterator_is_mutable_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1_pixel_iterator_is_mutable_concept.html">boost::gil::detail::PixelIteratorIsMutableConcept</a></div><div class="ttdef"><b>Definition</b> concepts/pixel_iterator.hpp:111</div></div>
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<div class="ttc" id="astructboost_1_1gil_1_1element__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1element__type.html">boost::gil::element_type</a></div><div class="ttdoc">Specifies the element type of a homogeneous color base.</div><div class="ttdef"><b>Definition</b> color_base_algorithm.hpp:225</div></div>
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<div class="ttc" id="astructboost_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> pixel_iterator.hpp:28</div></div>
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<div class="ttc" id="astructboost_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:36</div></div>
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<div class="ttc" id="astructboost_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="astructboost_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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