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- <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright 2005-2007 Adobe Systems Incorporated</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Distributed under the Boost Software License, Version 1.0</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// See accompanying file LICENSE_1_0.txt or copy at</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.boost.org/LICENSE_1_0.txt</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#ifndef BOOST_GIL_CONCEPTS_PIXEL_LOCATOR_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#define BOOST_GIL_CONCEPTS_PIXEL_LOCATOR_HPP</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <boost/gil/concepts/basic.hpp></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <boost/gil/concepts/concept_check.hpp></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <boost/gil/concepts/fwd.hpp></span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <boost/gil/concepts/pixel.hpp></span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include <boost/gil/concepts/pixel_dereference.hpp></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <boost/gil/concepts/pixel_iterator.hpp></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <boost/gil/concepts/point.hpp></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <boost/gil/concepts/detail/utility.hpp></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <cstddef></span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <iterator></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <type_traits></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#if defined(BOOST_CLANG)</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#pragma clang diagnostic push</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#pragma clang diagnostic ignored "-Wunused-local-typedefs"</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#if defined(BOOST_GCC) && (BOOST_GCC >= 40900)</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#pragma GCC diagnostic push</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#pragma GCC diagnostic ignored "-Wunused-local-typedefs"</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#pragma GCC diagnostic ignored "-Wunused-but-set-variable"</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Loc></div><div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_random_access_n_d_locator_concept.html"> 103</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1_random_access_n_d_locator_concept.html">RandomAccessNDLocatorConcept</a></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> {</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordtype">void</span> constraints()</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  {</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  gil_function_requires<Regular<Loc>>();</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="comment">// TODO: Should these be concept-checked instead of ignored? --mloskot</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keyword">using</span> value_type = <span class="keyword">typename</span> Loc::value_type;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  ignore_unused_variable_warning(value_type{});</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">// result of dereferencing</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">using</span> reference = <span class="keyword">typename</span> Loc::reference;</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="comment">//ignore_unused_variable_warning(reference{});</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="comment">// result of operator-(pixel_locator, pixel_locator)</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keyword">using</span> difference_type = <span class="keyword">typename</span> Loc::difference_type;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  ignore_unused_variable_warning(difference_type{});</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="comment">// type used to store relative location (to allow for more efficient repeated access)</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keyword">using</span> cached_location_t = <span class="keyword">typename</span> Loc::cached_location_t;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  ignore_unused_variable_warning(cached_location_t{});</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// same as this type, but over const values</span></div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keyword">using</span> const_t = <span class="keyword">typename</span> Loc::const_t;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  ignore_unused_variable_warning(const_t{});</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="comment">// same as difference_type</span></div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">using</span> <a class="code" href="classboost_1_1gil_1_1point.html">point_t</a> = <span class="keyword">typename</span> Loc::point_t;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  ignore_unused_variable_warning(<a class="code" href="classboost_1_1gil_1_1point.html">point_t</a>{});</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keyword">static</span> std::size_t <span class="keyword">const</span> N = Loc::num_dimensions; ignore_unused_variable_warning(N);</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">using</span> first_it_type = <span class="keyword">typename</span> Loc::template axis<0>::iterator;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keyword">using</span> last_it_type = <span class="keyword">typename</span> Loc::template axis<N-1>::iterator;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  gil_function_requires<boost_concepts::RandomAccessTraversalConcept<first_it_type>>();</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  gil_function_requires<boost_concepts::RandomAccessTraversalConcept<last_it_type>>();</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// point_t must be an N-dimensional point, each dimension of which must</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="comment">// have the same type as difference_type of the corresponding iterator</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  gil_function_requires<PointNDConcept<point_t>>();</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  static_assert(point_t::num_dimensions == N, <span class="stringliteral">""</span>);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  static_assert(std::is_same</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keyword">typename</span> std::iterator_traits<first_it_type>::difference_type,</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">typename</span> point_t::template axis<0>::coord_t</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  >::value, <span class="stringliteral">""</span>);</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  static_assert(std::is_same</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keyword">typename</span> std::iterator_traits<last_it_type>::difference_type,</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keyword">typename</span> point_t::template axis<N-1>::coord_t</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  >::value, <span class="stringliteral">""</span>);</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  difference_type d;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  loc += d;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  loc -= d;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  loc = loc + d;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  loc = loc - d;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  reference r1 = loc[d]; ignore_unused_variable_warning(r1);</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  reference r2 = *loc; ignore_unused_variable_warning(r2);</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  cached_location_t cl = loc.cache_location(d); ignore_unused_variable_warning(cl);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  reference r3 = loc[d]; ignore_unused_variable_warning(r3);</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  first_it_type fi = loc.template axis_iterator<0>();</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  fi = loc.template axis_iterator<0>(d);</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  last_it_type li = loc.template axis_iterator<N-1>();</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  li = loc.template axis_iterator<N-1>(d);</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keyword">using</span> deref_t = PixelDereferenceAdaptorArchetype<typename Loc::value_type>;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keyword">using</span> dtype = <span class="keyword">typename</span> Loc::template add_deref<deref_t>::type;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="comment">// TODO: infinite recursion - FIXME?</span></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">//gil_function_requires<RandomAccessNDLocatorConcept<dtype>>();</span></div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  }</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  Loc loc;</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> };</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Loc></div><div class="line"><a name="l00220"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_random_access2_d_locator_concept.html"> 220</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1_random_access2_d_locator_concept.html">RandomAccess2DLocatorConcept</a></div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> {</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordtype">void</span> constraints()</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  {</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  gil_function_requires<RandomAccessNDLocatorConcept<Loc>>();</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  static_assert(Loc::num_dimensions == 2, <span class="stringliteral">""</span>);</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keyword">using</span> dynamic_x_step_t = <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1dynamic__x__step__type.html">dynamic_x_step_type<Loc>::type</a>;</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keyword">using</span> dynamic_y_step_t = <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1dynamic__y__step__type.html">dynamic_y_step_type<Loc>::type</a>;</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keyword">using</span> transposed_t = <span class="keyword">typename</span> transposed_type<Loc>::type;</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keyword">using</span> cached_location_t = <span class="keyword">typename</span> Loc::cached_location_t;</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  gil_function_requires<Point2DConcept<typename Loc::point_t>>();</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keyword">using</span> x_iterator = <span class="keyword">typename</span> Loc::x_iterator;</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keyword">using</span> y_iterator = <span class="keyword">typename</span> Loc::y_iterator;</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keyword">using</span> x_coord_t = <span class="keyword">typename</span> Loc::x_coord_t;</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keyword">using</span> y_coord_t = <span class="keyword">typename</span> Loc::y_coord_t;</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  x_coord_t xd = 0; ignore_unused_variable_warning(xd);</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  y_coord_t yd = 0; ignore_unused_variable_warning(yd);</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keyword">typename</span> Loc::difference_type d;</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keyword">typename</span> Loc::reference r=loc(xd,yd); ignore_unused_variable_warning(r);</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span> </div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  dynamic_x_step_t loc2(dynamic_x_step_t(), yd);</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  dynamic_x_step_t loc3(dynamic_x_step_t(), xd, yd);</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span> </div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keyword">using</span> dynamic_xy_step_transposed_t = <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1dynamic__y__step__type.html">dynamic_y_step_type</a></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  <span class="keyword">typename</span> <a class="code" href="structboost_1_1gil_1_1dynamic__x__step__type.html">dynamic_x_step_type<transposed_t>::type</a></div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  >::type;</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  dynamic_xy_step_transposed_t loc4(loc, xd,yd,<span class="keyword">true</span>);</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordtype">bool</span> is_contiguous = loc.is_1d_traversable(xd);</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  ignore_unused_variable_warning(is_contiguous);</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> </div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  loc.y_distance_to(loc, xd);</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  loc = loc.xy_at(d);</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  loc = loc.xy_at(xd, yd);</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  x_iterator xit = loc.x_at(d);</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  xit = loc.x_at(xd, yd);</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  xit = loc.x();</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> </div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  y_iterator yit = loc.y_at(d);</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  yit = loc.y_at(xd, yd);</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  yit = loc.y();</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  cached_location_t cl = loc.cache_location(xd, yd);</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  ignore_unused_variable_warning(cl);</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  }</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  Loc loc;</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> };</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> </div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Loc></div><div class="line"><a name="l00290"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_pixel_locator_concept.html"> 290</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1_pixel_locator_concept.html">PixelLocatorConcept</a></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> {</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordtype">void</span> constraints()</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  {</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  gil_function_requires<RandomAccess2DLocatorConcept<Loc>>();</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  gil_function_requires<PixelIteratorConcept<typename Loc::x_iterator>>();</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  gil_function_requires<PixelIteratorConcept<typename Loc::y_iterator>>();</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keyword">using</span> coord_t = <span class="keyword">typename</span> Loc::coord_t;</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  static_assert(std::is_same<typename Loc::x_coord_t, typename Loc::y_coord_t>::value, <span class="stringliteral">""</span>);</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  }</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  Loc loc;</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span> };</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="keyword">namespace </span>detail {</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span> </div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Loc></div><div class="line"><a name="l00307"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1_random_access_n_d_locator_is_mutable_concept.html"> 307</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1_random_access_n_d_locator_is_mutable_concept.html">RandomAccessNDLocatorIsMutableConcept</a></div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span> {</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordtype">void</span> constraints()</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  {</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  gil_function_requires<detail::RandomAccessIteratorIsMutableConcept</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keyword">typename</span> Loc::template axis<0>::iterator</div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  >>();</div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  gil_function_requires<detail::RandomAccessIteratorIsMutableConcept</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keyword">typename</span> Loc::template axis<Loc::num_dimensions-1>::iterator</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  >>();</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span> </div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  <span class="keyword">typename</span> Loc::difference_type d; initialize_it(d);</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  <span class="keyword">typename</span> Loc::value_type v; initialize_it(v);</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keyword">typename</span> Loc::cached_location_t cl = loc.cache_location(d);</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  *loc = v;</div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  loc[d] = v;</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  loc[cl] = v;</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  }</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  Loc loc;</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span> };</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="comment">// \tparam Loc Models RandomAccess2DLocatorConcept</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Loc></div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span> <span class="keyword">struct </span>RandomAccess2DLocatorIsMutableConcept</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span> {</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keywordtype">void</span> constraints()</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  {</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  gil_function_requires<detail::RandomAccessNDLocatorIsMutableConcept<Loc>>();</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keyword">typename</span> Loc::x_coord_t xd = 0; ignore_unused_variable_warning(xd);</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keyword">typename</span> Loc::y_coord_t yd = 0; ignore_unused_variable_warning(yd);</div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <span class="keyword">typename</span> Loc::value_type v; initialize_it(v);</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  loc(xd, yd) = v;</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  }</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  Loc loc;</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> };</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span> </div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> } <span class="comment">// namespace detail</span></div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Loc></div><div class="line"><a name="l00357"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_mutable_random_access_n_d_locator_concept.html"> 357</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1_mutable_random_access_n_d_locator_concept.html">MutableRandomAccessNDLocatorConcept</a></div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span> {</div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordtype">void</span> constraints()</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  {</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  gil_function_requires<RandomAccessNDLocatorConcept<Loc>>();</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  gil_function_requires<detail::RandomAccessNDLocatorIsMutableConcept<Loc>>();</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  }</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span> };</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span> </div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Loc></div><div class="line"><a name="l00374"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_mutable_random_access2_d_locator_concept.html"> 374</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1_mutable_random_access2_d_locator_concept.html">MutableRandomAccess2DLocatorConcept</a></div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span> {</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="keywordtype">void</span> constraints()</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  {</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  gil_function_requires<RandomAccess2DLocatorConcept<Loc>>();</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  gil_function_requires<detail::RandomAccess2DLocatorIsMutableConcept<Loc>>();</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  }</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span> };</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span> </div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Loc></div><div class="line"><a name="l00391"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1_mutable_pixel_locator_concept.html"> 391</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1_mutable_pixel_locator_concept.html">MutablePixelLocatorConcept</a></div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span> {</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <span class="keywordtype">void</span> constraints()</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  {</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  gil_function_requires<PixelLocatorConcept<Loc>>();</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  gil_function_requires<detail::RandomAccess2DLocatorIsMutableConcept<Loc>>();</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  }</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span> };</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span> </div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span> }} <span class="comment">// namespace boost::gil</span></div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span> </div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span> <span class="preprocessor">#if defined(BOOST_CLANG)</span></div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span> <span class="preprocessor">#pragma clang diagnostic pop</span></div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span> </div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span> <span class="preprocessor">#if defined(BOOST_GCC) && (BOOST_GCC >= 40900)</span></div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="preprocessor">#pragma GCC diagnostic pop</span></div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span> </div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="structboost_1_1gil_1_1_mutable_random_access_n_d_locator_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_mutable_random_access_n_d_locator_concept.html">boost::gil::MutableRandomAccessNDLocatorConcept</a></div><div class="ttdoc">N-dimensional locator over mutable pixels.</div><div class="ttdef"><b>Definition:</b> pixel_locator.hpp:357</div></div>
- <div class="ttc" id="structboost_1_1gil_1_1detail_1_1_random_access_n_d_locator_is_mutable_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1_random_access_n_d_locator_is_mutable_concept.html">boost::gil::detail::RandomAccessNDLocatorIsMutableConcept</a></div><div class="ttdef"><b>Definition:</b> pixel_locator.hpp:307</div></div>
- <div class="ttc" id="structboost_1_1gil_1_1_mutable_random_access2_d_locator_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_mutable_random_access2_d_locator_concept.html">boost::gil::MutableRandomAccess2DLocatorConcept</a></div><div class="ttdoc">2-dimensional locator over mutable pixels</div><div class="ttdef"><b>Definition:</b> pixel_locator.hpp:374</div></div>
- <div class="ttc" id="structboost_1_1gil_1_1_random_access2_d_locator_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_random_access2_d_locator_concept.html">boost::gil::RandomAccess2DLocatorConcept</a></div><div class="ttdoc">2-dimensional locator over immutable values</div><div class="ttdef"><b>Definition:</b> pixel_locator.hpp:220</div></div>
- <div class="ttc" id="structboost_1_1gil_1_1_pixel_locator_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_pixel_locator_concept.html">boost::gil::PixelLocatorConcept</a></div><div class="ttdoc">GIL's 2-dimensional locator over immutable GIL pixels.</div><div class="ttdef"><b>Definition:</b> pixel_locator.hpp:290</div></div>
- <div class="ttc" id="structboost_1_1gil_1_1dynamic__y__step__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1dynamic__y__step__type.html">boost::gil::dynamic_y_step_type</a></div><div class="ttdoc">Base template for types that model HasDynamicYStepTypeConcept.</div><div class="ttdef"><b>Definition:</b> dynamic_step.hpp:21</div></div>
- <div class="ttc" id="structboost_1_1gil_1_1_random_access_n_d_locator_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_random_access_n_d_locator_concept.html">boost::gil::RandomAccessNDLocatorConcept</a></div><div class="ttdoc">N-dimensional locator over immutable values.</div><div class="ttdef"><b>Definition:</b> pixel_locator.hpp:103</div></div>
- <div class="ttc" id="classboost_1_1gil_1_1point_html"><div class="ttname"><a href="classboost_1_1gil_1_1point.html">boost::gil::point< std::ptrdiff_t ></a></div></div>
- <div class="ttc" id="structboost_1_1gil_1_1dynamic__x__step__type_html"><div class="ttname"><a href="structboost_1_1gil_1_1dynamic__x__step__type.html">boost::gil::dynamic_x_step_type</a></div><div class="ttdoc">Base template for types that model HasDynamicXStepTypeConcept.</div><div class="ttdef"><b>Definition:</b> dynamic_step.hpp:17</div></div>
- <div class="ttc" id="structboost_1_1gil_1_1_mutable_pixel_locator_concept_html"><div class="ttname"><a href="structboost_1_1gil_1_1_mutable_pixel_locator_concept.html">boost::gil::MutablePixelLocatorConcept</a></div><div class="ttdoc">GIL's 2-dimensional locator over mutable GIL pixels.</div><div class="ttdef"><b>Definition:</b> pixel_locator.hpp:391</div></div>
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