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<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">// Distributed under the Boost Software License, Version 1.0</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<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>&#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="preprocessor">#ifndef BOOST_GIL_CONCEPTS_PIXEL_DEREFERENCE_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#define BOOST_GIL_CONCEPTS_PIXEL_DEREFERENCE_HPP</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="preprocessor">#include &lt;boost/gil/concepts/basic.hpp&gt;</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &lt;boost/gil/concepts/concept_check.hpp&gt;</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &lt;boost/gil/concepts/fwd.hpp&gt;</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &lt;boost/gil/concepts/pixel.hpp&gt;</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &lt;boost/gil/concepts/detail/type_traits.hpp&gt;</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;</div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;boost/concept_check.hpp&gt;</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;</div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &lt;cstddef&gt;</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &lt;type_traits&gt;</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#if defined(BOOST_CLANG)</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#pragma clang diagnostic push</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#pragma clang diagnostic ignored &quot;-Wunused-local-typedefs&quot;</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="preprocessor">#if defined(BOOST_GCC) &amp;&amp; (BOOST_GCC &gt;= 40900)</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#pragma GCC diagnostic push</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#pragma GCC diagnostic ignored &quot;-Wunused-local-typedefs&quot;</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> D&gt;</div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_pixel_dereference_adaptor_concept.html">   52</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1_pixel_dereference_adaptor_concept.html">PixelDereferenceAdaptorConcept</a></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;{</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    <span class="keywordtype">void</span> constraints()</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    {</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        gil_function_requires</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;        &lt;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;            boost::UnaryFunctionConcept</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;            &lt;</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;                D,</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;                <span class="keyword">typename</span> detail::remove_const_and_reference&lt;typename D::result_type&gt;::type,</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;                <span class="keyword">typename</span> D::argument_type</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;            &gt;</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        &gt;();</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;        gil_function_requires&lt;boost::DefaultConstructibleConcept&lt;D&gt;&gt;();</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;        gil_function_requires&lt;boost::CopyConstructibleConcept&lt;D&gt;&gt;();</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;        gil_function_requires&lt;boost::AssignableConcept&lt;D&gt;&gt;();</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        gil_function_requires&lt;<a class="code" href="structboost_1_1gil_1_1_pixel_concept.html">PixelConcept</a></div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;            &lt;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;                <span class="keyword">typename</span> detail::remove_const_and_reference&lt;typename D::result_type&gt;::type</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;            &gt;&gt;();</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;        <span class="keyword">using</span> const_t = <span class="keyword">typename</span> D::const_t;</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;        gil_function_requires&lt;PixelDereferenceAdaptorConcept&lt;const_t&gt;&gt;();</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;        <span class="keyword">using</span> value_type = <span class="keyword">typename</span> D::value_type;</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;        gil_function_requires&lt;PixelValueConcept&lt;value_type&gt;&gt;();</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;        <span class="comment">// TODO: Should this be concept-checked after &quot;if you remove const and reference&quot;? --mloskot</span></div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;        <span class="keyword">using</span> reference = <span class="keyword">typename</span> D::reference; <span class="comment">// == PixelConcept (if you remove const and reference)</span></div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;        <span class="keyword">using</span> const_reference = <span class="keyword">typename</span> D::const_reference; <span class="comment">// == PixelConcept (if you remove const and reference)</span></div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;        <span class="keywordtype">bool</span> <span class="keyword">const</span> is_mutable = D::is_mutable;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;        ignore_unused_variable_warning(is_mutable);</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    }</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    D d;</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;</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> P&gt;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;<span class="keyword">struct </span>PixelDereferenceAdaptorArchetype</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;{</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    <span class="keyword">using</span> argument_type = P;</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    <span class="keyword">using</span> result_type = P;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    <span class="keyword">using</span> const_t = PixelDereferenceAdaptorArchetype;</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <span class="keyword">using</span> value_type = <span class="keyword">typename</span> std::remove_reference&lt;P&gt;::type;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    <span class="keyword">using</span> reference = <span class="keyword">typename</span> std::add_lvalue_reference&lt;P&gt;::type;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    <span class="keyword">using</span> const_reference = reference;</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;    <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> is_mutable = <span class="keyword">false</span>;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    P operator()(P)<span class="keyword"> const </span>{ <span class="keywordflow">throw</span>; }</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;};</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="comment">// namespace boost::gil</span></div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="preprocessor">#if defined(BOOST_CLANG)</span></div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<span class="preprocessor">#pragma clang diagnostic pop</span></div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;<span class="preprocessor">#if defined(BOOST_GCC) &amp;&amp; (BOOST_GCC &gt;= 40900)</span></div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;<span class="preprocessor">#pragma GCC diagnostic pop</span></div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;<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:52</div></div>
  51 <div class="ttc" id="structboost_1_1gil_1_1_pixel_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_pixel_concept.html">boost::gil::PixelConcept</a></div><div class="ttdoc">Pixel concept - A color base whose elements are channels.</div><div class="ttdef"><b>Definition:</b> concepts/pixel.hpp:62</div></div>
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