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  47 <div class="title">get_read_device.hpp</div>  </div>
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  50 <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 2012 Christian Henning</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_IO_GET_READ_DEVICE_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#define BOOST_GIL_IO_GET_READ_DEVICE_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/detail/mp11.hpp&gt;</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &lt;boost/gil/io/device.hpp&gt;</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &lt;boost/gil/io/path_spec.hpp&gt;</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;</div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &lt;type_traits&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="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</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="keyword">template</span>&lt; <span class="keyword">typename</span> T</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;        , <span class="keyword">typename</span> FormatTag</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;        , <span class="keyword">class </span>Enable = <span class="keywordtype">void</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;        &gt;</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="keyword">struct </span>get_read_device</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;{};</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Device, <span class="keyword">typename</span> FormatTag&gt;</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="keyword">struct </span>get_read_device</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;&lt;</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;    Device,</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;    FormatTag,</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;    typename std::enable_if</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;    &lt;</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;        mp11::mp_and</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;        &lt;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;            detail::is_adaptable_input_device&lt;FormatTag, Device&gt;,</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;            is_format_tag&lt;FormatTag&gt;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;        &gt;::value</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    &gt;::type</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;&gt;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;{</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;    <span class="keyword">using</span> type = <span class="keyword">typename</span> detail::is_adaptable_input_device</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;        &lt;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;            FormatTag,</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;            Device</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;        &gt;::device_type;</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;};</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> String, <span class="keyword">typename</span> FormatTag&gt;</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="keyword">struct </span>get_read_device</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;&lt;</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    String,</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    FormatTag,</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    typename std::enable_if</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    &lt;</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;        mp11::mp_and</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        &lt;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;            detail::is_supported_path_spec&lt;String&gt;,</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;            is_format_tag&lt;FormatTag&gt;</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;        &gt;::value</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    &gt;::type</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;&gt;</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;{</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    <span class="keyword">using</span> type = detail::file_stream_device&lt;FormatTag&gt;;</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;};</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;} <span class="comment">// namespace gil</span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;} <span class="comment">// namespace boost</span></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;<span class="preprocessor">#endif</span></div></div><!-- fragment --></div><!-- contents -->
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