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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>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment">  libSDL2pp - C++ bindings/wrapper for SDL2</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment">  Copyright (C) 2014-2016 Dmitry Marakasov &lt;amdmi3@amdmi3.ru&gt;</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span><span class="comment"></span> </div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="comment">  This software is provided &#39;as-is&#39;, without any express or implied</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span><span class="comment">  warranty.  In no event will the authors be held liable for any damages</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="comment">  arising from the use of this software.</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="comment"></span> </div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="comment">  Permission is granted to anyone to use this software for any purpose,</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="comment">  including commercial applications, and to alter it and redistribute it</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span><span class="comment">  freely, subject to the following restrictions:</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><span class="comment"></span> </div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span><span class="comment">  1. The origin of this software must not be misrepresented; you must not</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno">   14</span><span class="comment">     claim that you wrote the original software. If you use this software</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno">   15</span><span class="comment">     in a product, an acknowledgment in the product documentation would be</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno">   16</span><span class="comment">     appreciated but is not required.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno">   17</span><span class="comment">  2. Altered source versions must be plainly marked as such, and must not be</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno">   18</span><span class="comment">     misrepresented as being the original software.</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno">   19</span><span class="comment">  3. This notice may not be removed or altered from any source distribution.</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno">   20</span><span class="comment">*/</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno">   21</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno">   22</span><span class="preprocessor">#ifndef SDL2PP_STREAMRWOPS_HH</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="preprocessor">#define SDL2PP_STREAMRWOPS_HH</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="preprocessor">#include &lt;SDL2pp/RWops.hh&gt;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span> </div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="preprocessor">#include &lt;cassert&gt;</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="preprocessor">#include &lt;stdexcept&gt;</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span><span class="preprocessor">#include &lt;iostream&gt;</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="preprocessor">#include &lt;type_traits&gt;</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno">   31</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno">   32</span><span class="keyword">namespace </span>SDL2pp {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span> </div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="keyword">template</span> &lt;<span class="keyword">class</span> S&gt;</div>
<div class="foldopen" id="foldopen00051" data-start="{" data-end="};">
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html">   51</a></span><span class="keyword">class </span><a class="code hl_class" href="classSDL2pp_1_1StreamRWops.html">StreamRWops</a> : <span class="keyword">public</span> <a class="code hl_class" href="classSDL2pp_1_1CustomRWops.html">CustomRWops</a> {</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>    <span class="comment">// since STL streams have different pointers for reading and writing,</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>    <span class="comment">// supporting both at the same time is impossible</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span>    <span class="keyword">static_assert</span>(!(std::is_base_of&lt;std::istream, S&gt;::value &amp;&amp; std::is_base_of&lt;std::ostream, S&gt;::value), <span class="stringliteral">&quot;StreamRWops does not support reading and writing at the same time&quot;</span>);</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span><span class="keyword">protected</span>:</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">   57</a></span>    S&amp; <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>; </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span> </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span><span class="keyword">private</span>:</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span>    <span class="keyword">template</span> &lt;<span class="keyword">class</span> SS&gt;</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno">   61</span>    <span class="keyword">typename</span> std::enable_if&lt;std::is_base_of&lt;std::istream, SS&gt;::value &amp;&amp; !std::is_base_of&lt;std::ostream, SS&gt;::value, <span class="keywordtype">void</span>&gt;::type SeekHelper(<span class="keyword">typename</span> SS::off_type off, std::ios_base::seekdir dir) {</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>        <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.seekg(off, dir);</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>    }</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span>    <span class="keyword">template</span> &lt;<span class="keyword">class</span> SS&gt;</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>    <span class="keyword">typename</span> std::enable_if&lt;!std::is_base_of&lt;std::istream, SS&gt;::value &amp;&amp; std::is_base_of&lt;std::ostream, SS&gt;::value, <span class="keywordtype">void</span>&gt;::type SeekHelper(<span class="keyword">typename</span> SS::off_type off, std::ios_base::seekdir dir) {</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>        <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.seekp(off, dir);</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>    }</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>    <span class="keyword">template</span> &lt;<span class="keyword">class</span> SS&gt;</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>    <span class="keyword">typename</span> std::enable_if&lt;std::is_base_of&lt;std::istream, SS&gt;::value &amp;&amp; !std::is_base_of&lt;std::ostream, SS&gt;::value, <span class="keyword">typename</span> SS::off_type&gt;::type TellHelper() {</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>        <span class="keywordflow">return</span> <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.tellg();</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span>    }</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span> </div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno">   75</span>    <span class="keyword">template</span> &lt;<span class="keyword">class</span> SS&gt;</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span>    <span class="keyword">typename</span> std::enable_if&lt;!std::is_base_of&lt;std::istream, SS&gt;::value &amp;&amp; std::is_base_of&lt;std::ostream, SS&gt;::value, <span class="keyword">typename</span> SS::off_type&gt;::type TellHelper() {</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span>        <span class="keywordflow">return</span> <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.tellp();</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno">   78</span>    }</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno">   79</span> </div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno">   80</span>    <span class="keyword">template</span> &lt;<span class="keyword">class</span> SS&gt;</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span>    <span class="keyword">typename</span> std::enable_if&lt;std::is_base_of&lt;std::istream, SS&gt;::value, <span class="keywordtype">size_t</span>&gt;::type ReadHelper(<span class="keywordtype">void</span>* ptr, <span class="keywordtype">size_t</span> size, <span class="keywordtype">size_t</span> maxnum) {</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>        <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.read(<span class="keyword">static_cast&lt;</span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(ptr), size * maxnum);</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span> </div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span>        <span class="comment">// http://en.cppreference.com/w/cpp/io/streamsize:</span></div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span>        <span class="comment">// &quot;Except in the constructors of std::strstreambuf,</span></div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>        <span class="comment">// negative values of std::streamsize are never used&quot;</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>        <span class="keywordtype">size_t</span> nread = <span class="keyword">static_cast&lt;</span><span class="keywordtype">size_t</span><span class="keyword">&gt;</span>(<a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.gcount());</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span> </div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span>        <span class="comment">// eof is OK</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span>        <span class="keywordflow">if</span> (<a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.rdstate() == (std::ios_base::eofbit | std::ios_base::failbit))</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>            <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.clear();</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span> </div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span>        <span class="keywordflow">if</span> (nread != size * maxnum) {</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno">   94</span>            <span class="comment">// short read</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno">   95</span>            <span class="keywordtype">char</span>* pos = <span class="keyword">static_cast&lt;</span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(ptr);</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno">   96</span>            pos += nread;</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span> </div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span>            <span class="keywordtype">size_t</span> count = nread % size;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno">   99</span> </div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno">  100</span>            <span class="comment">// put partially read object back into the stream</span></div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno">  101</span>            <span class="keywordflow">while</span> (count != 0) {</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno">  102</span>                <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.putback(*--pos);</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno">  103</span>                --count;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span>            }</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span>        }</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span> </div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span>        <span class="keywordflow">return</span> nread / size;</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span>    }</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span>    <span class="keyword">template</span> &lt;<span class="keyword">class</span> SS&gt;</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span>    <span class="keyword">typename</span> std::enable_if&lt;!std::is_base_of&lt;std::istream, SS&gt;::value, <span class="keywordtype">size_t</span>&gt;::type ReadHelper(<span class="keywordtype">void</span>*, <span class="keywordtype">size_t</span>, <span class="keywordtype">size_t</span>) {</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span>        <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span>    }</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno">  114</span> </div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno">  115</span>    <span class="keyword">template</span> &lt;<span class="keyword">class</span> SS&gt;</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno">  116</span>    <span class="keyword">typename</span> std::enable_if&lt;std::is_base_of&lt;std::ostream, SS&gt;::value, <span class="keywordtype">size_t</span>&gt;::type WriteHelper(<span class="keyword">const</span> <span class="keywordtype">void</span>* ptr, <span class="keywordtype">size_t</span> size, <span class="keywordtype">size_t</span> num) {</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno">  117</span>        <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.write(<span class="keyword">static_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(ptr), size * num);</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span>        <span class="comment">// XXX: there seem to be no reliable way to tell how much</span></div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>        <span class="comment">// was actually written</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>        <span class="keywordflow">if</span> (<a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.rdstate() &amp; std::ios_base::badbit)</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span>            <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span>        <span class="keywordflow">return</span> num;</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span>    }</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span> </div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span>    <span class="keyword">template</span> &lt;<span class="keyword">class</span> SS&gt;</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>    <span class="keyword">typename</span> std::enable_if&lt;!std::is_base_of&lt;std::ostream, SS&gt;::value, <span class="keywordtype">size_t</span>&gt;::type WriteHelper(<span class="keyword">const</span> <span class="keywordtype">void</span>*, <span class="keywordtype">size_t</span>, <span class="keywordtype">size_t</span>) {</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span>        <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span>    }</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span> </div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span>    <span class="keyword">template</span> &lt;<span class="keyword">class</span> SS&gt;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span>    <span class="keyword">typename</span> std::enable_if&lt;std::is_base_of&lt;std::ostream, SS&gt;::value, <span class="keywordtype">int</span>&gt;::type CloseHelper() {</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span>        <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.flush();</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span>        <span class="keywordflow">return</span> (<a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>.rdstate() &amp; std::ios_base::badbit) ? -1 : 0;</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span>    }</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span> </div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span>    <span class="keyword">template</span> &lt;<span class="keyword">class</span> SS&gt;</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>    <span class="keyword">typename</span> std::enable_if&lt;!std::is_base_of&lt;std::ostream, SS&gt;::value, <span class="keywordtype">int</span>&gt;::type CloseHelper() {</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span>        <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span>    }</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span> </div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span><span class="keyword">public</span>:</div>
<div class="foldopen" id="foldopen00148" data-start="{" data-end="}">
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a19fee509de7e15c60eac560592d2470e">  148</a></span>    <a class="code hl_function" href="classSDL2pp_1_1StreamRWops.html#a19fee509de7e15c60eac560592d2470e">StreamRWops</a>(S&amp; stream) : <a class="code hl_variable" href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">stream_</a>(stream) {</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span>    }</div>
</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span> </div>
<div class="foldopen" id="foldopen00160" data-start="{" data-end="}">
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a0b0ad832e6c49c21e8b0de4c595450e2">  160</a></span>    <span class="keyword">virtual</span> Sint64 <a class="code hl_function" href="classSDL2pp_1_1StreamRWops.html#a0b0ad832e6c49c21e8b0de4c595450e2">Size</a>()<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno">  161</span>        Sint64 old_pos = TellHelper&lt;S&gt;();</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno">  162</span>        <span class="keywordflow">if</span> (old_pos == -1) <span class="comment">// not seekable?</span></div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno">  163</span>            <span class="keywordflow">return</span> -1;</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno">  164</span>        SeekHelper&lt;S&gt;(0, std::ios_base::end);</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>        Sint64 size = TellHelper&lt;S&gt;();</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>        SeekHelper&lt;S&gt;(old_pos, std::ios_base::beg);</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>        assert(TellHelper&lt;S&gt;() == old_pos); <span class="comment">// make sure we&#39;re back to where we were</span></div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>        <span class="keywordflow">return</span> size;</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>    }</div>
</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span> </div>
<div class="foldopen" id="foldopen00184" data-start="{" data-end="}">
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a7d257204670a124f5a77f2726c6363ea">  184</a></span>    <span class="keyword">virtual</span> Sint64 <a class="code hl_function" href="classSDL2pp_1_1StreamRWops.html#a7d257204670a124f5a77f2726c6363ea">Seek</a>(Sint64 offset, <span class="keywordtype">int</span> whence)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span>        <span class="keywordflow">switch</span> (whence) {</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span>        <span class="keywordflow">case</span> RW_SEEK_SET:</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span>            SeekHelper&lt;S&gt;(offset, std::ios_base::beg);</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span>            <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno">  189</span>        <span class="keywordflow">case</span> RW_SEEK_CUR:</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno">  190</span>            SeekHelper&lt;S&gt;(offset, std::ios_base::cur);</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span>            <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span>        <span class="keywordflow">case</span> RW_SEEK_END:</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span>            SeekHelper&lt;S&gt;(offset, std::ios_base::end);</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span>            <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span>        <span class="keywordflow">default</span>:</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span>            <span class="keywordflow">throw</span> std::logic_error(<span class="stringliteral">&quot;Unexpected whence value for StreamRWops::Seek&quot;</span>);</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span>        }</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span>        <span class="keywordflow">return</span> TellHelper&lt;S&gt;();</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span>    }</div>
</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span> </div>
<div class="foldopen" id="foldopen00214" data-start="{" data-end="}">
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a60d6e9eb4ee3ed6484ba44a2e49f6608">  214</a></span>    <span class="keyword">virtual</span> <span class="keywordtype">size_t</span> <a class="code hl_function" href="classSDL2pp_1_1StreamRWops.html#a60d6e9eb4ee3ed6484ba44a2e49f6608">Read</a>(<span class="keywordtype">void</span>* ptr, <span class="keywordtype">size_t</span> size, <span class="keywordtype">size_t</span> maxnum)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>        <span class="keywordflow">return</span> ReadHelper&lt;S&gt;(ptr, size, maxnum);</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span>    }</div>
</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span> </div>
<div class="foldopen" id="foldopen00231" data-start="{" data-end="}">
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a7758763a8ce9c9b9547fdb983e8b75ba">  231</a></span>    <span class="keyword">virtual</span> <span class="keywordtype">size_t</span> <a class="code hl_function" href="classSDL2pp_1_1StreamRWops.html#a7758763a8ce9c9b9547fdb983e8b75ba">Write</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* ptr, <span class="keywordtype">size_t</span> size, <span class="keywordtype">size_t</span> num)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span>        <span class="keywordflow">return</span> WriteHelper&lt;S&gt;(ptr, size, num);</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span>    }</div>
</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span> </div>
<div class="foldopen" id="foldopen00244" data-start="{" data-end="}">
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"><a class="line" href="classSDL2pp_1_1StreamRWops.html#a392e5fa933469a82789164865fd45d0f">  244</a></span>    <span class="keyword">virtual</span> <span class="keywordtype">int</span> <a class="code hl_function" href="classSDL2pp_1_1StreamRWops.html#a392e5fa933469a82789164865fd45d0f">Close</a>()<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span>        <span class="keywordflow">return</span> CloseHelper&lt;S&gt;();</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span>    }</div>
</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span>};</div>
</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span> </div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span>}</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span> </div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclassSDL2pp_1_1CustomRWops_html"><div class="ttname"><a href="classSDL2pp_1_1CustomRWops.html">SDL2pp::CustomRWops</a></div><div class="ttdoc">Base class for custom RWops.</div><div class="ttdef"><b>Definition</b> RWops.hh:48</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html">SDL2pp::StreamRWops</a></div><div class="ttdoc">RWops adaptor for STL streams.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:51</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a0b0ad832e6c49c21e8b0de4c595450e2"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a0b0ad832e6c49c21e8b0de4c595450e2">SDL2pp::StreamRWops::Size</a></div><div class="ttdeci">virtual Sint64 Size() override</div><div class="ttdoc">Get the size of the data stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:160</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a19fee509de7e15c60eac560592d2470e"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a19fee509de7e15c60eac560592d2470e">SDL2pp::StreamRWops::StreamRWops</a></div><div class="ttdeci">StreamRWops(S &amp;stream)</div><div class="ttdoc">Construct StreamRWops for specified stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:148</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a392e5fa933469a82789164865fd45d0f"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a392e5fa933469a82789164865fd45d0f">SDL2pp::StreamRWops::Close</a></div><div class="ttdeci">virtual int Close() override</div><div class="ttdoc">Close stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:244</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a53a7257037c0420f652a21c0d875ccb9"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a53a7257037c0420f652a21c0d875ccb9">SDL2pp::StreamRWops::stream_</a></div><div class="ttdeci">S &amp; stream_</div><div class="ttdoc">Reference to stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:57</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a60d6e9eb4ee3ed6484ba44a2e49f6608"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a60d6e9eb4ee3ed6484ba44a2e49f6608">SDL2pp::StreamRWops::Read</a></div><div class="ttdeci">virtual size_t Read(void *ptr, size_t size, size_t maxnum) override</div><div class="ttdoc">Read from a stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:214</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a7758763a8ce9c9b9547fdb983e8b75ba"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a7758763a8ce9c9b9547fdb983e8b75ba">SDL2pp::StreamRWops::Write</a></div><div class="ttdeci">virtual size_t Write(const void *ptr, size_t size, size_t num) override</div><div class="ttdoc">Write to a stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:231</div></div>
<div class="ttc" id="aclassSDL2pp_1_1StreamRWops_html_a7d257204670a124f5a77f2726c6363ea"><div class="ttname"><a href="classSDL2pp_1_1StreamRWops.html#a7d257204670a124f5a77f2726c6363ea">SDL2pp::StreamRWops::Seek</a></div><div class="ttdeci">virtual Sint64 Seek(Sint64 offset, int whence) override</div><div class="ttdoc">Seek within the stream.</div><div class="ttdef"><b>Definition</b> StreamRWops.hh:184</div></div>
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