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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 2007-2008 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_ROW_BUFFER_HELPER_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#define BOOST_GIL_IO_ROW_BUFFER_HELPER_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="comment">// TODO: Shall we move toolbox to core?</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &lt;boost/gil/extension/toolbox/metafunctions/is_bit_aligned.hpp&gt;</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &lt;boost/gil/extension/toolbox/metafunctions/is_homogeneous.hpp&gt;</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &lt;boost/gil/extension/toolbox/metafunctions/pixel_bit_size.hpp&gt;</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;</div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &lt;boost/gil/detail/mp11.hpp&gt;</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;boost/gil/io/typedefs.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;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil { <span class="keyword">namespace </span>detail {</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;<span class="keyword">template</span>&lt; <span class="keyword">typename</span> Pixel</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;        , <span class="keyword">typename</span> DummyT = <span class="keywordtype">void</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;        &gt;</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="keyword">struct </span>row_buffer_helper</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;{</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;    <span class="keyword">using</span> element_t = Pixel;</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;    <span class="keyword">using</span> buffer_t = std::vector&lt;element_t&gt;;</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;    <span class="keyword">using</span> iterator_t = <span class="keyword">typename</span> buffer_t::iterator;</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;    row_buffer_helper( std::size_t width</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;                     , <span class="keywordtype">bool</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;                     )</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    : _row_buffer( width )</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    {}</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;    element_t* data() { <span class="keywordflow">return</span> &amp;_row_buffer[0]; }</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    iterator_t begin() { <span class="keywordflow">return</span> _row_buffer.begin(); }</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    iterator_t end()   { <span class="keywordflow">return</span> _row_buffer.end();   }</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    buffer_t&amp; buffer() { <span class="keywordflow">return</span> _row_buffer; }</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;<span class="keyword">private</span>:</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    buffer_t _row_buffer;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;};</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Pixel&gt;</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="keyword">struct </span>row_buffer_helper</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;    Pixel,</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    typename std::enable_if</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;        is_bit_aligned&lt;Pixel&gt;::value</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    &gt;::type</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;&gt;</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;{</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    <span class="keyword">using</span> element_t = byte_t;</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    <span class="keyword">using</span> buffer_t = std::vector&lt;element_t&gt;;</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    <span class="keyword">using</span> pixel_type = Pixel;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    <span class="keyword">using</span> iterator_t = bit_aligned_pixel_iterator&lt;pixel_type&gt;;</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    row_buffer_helper(std::size_t width, <span class="keywordtype">bool</span> in_bytes)</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        : _c{( width * pixel_bit_size&lt; pixel_type &gt;::value) &gt;&gt; 3}</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;        , _r{width * pixel_bit_size&lt; pixel_type &gt;::value - (_c &lt;&lt; 3)}</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    {</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;        <span class="keywordflow">if</span> (in_bytes)</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;        {</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;            _row_buffer.resize(width);</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;        }</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;        <span class="keywordflow">else</span></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="comment">// add one byte if there are remaining bits</span></div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;            _row_buffer.resize(_c + (_r != 0));</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;    }</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;    element_t* data() { <span class="keywordflow">return</span> &amp;_row_buffer[0]; }</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;    iterator_t begin() { <span class="keywordflow">return</span> iterator_t( &amp;_row_buffer.front(),0 ); }</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    iterator_t end()   { <span class="keywordflow">return</span> _r == 0 ? iterator_t( &amp;_row_buffer.back() + 1,  0 )</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;                                        : iterator_t( &amp;_row_buffer.back()    , (int) _r );</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;                       }</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;    buffer_t&amp; buffer() { <span class="keywordflow">return</span> _row_buffer; }</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;<span class="keyword">private</span>:</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="comment">// For instance 25 pixels of rgb2 type would be:</span></div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    <span class="comment">// overall 25 pixels * 3 channels * 2 bits/channel = 150 bits</span></div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    <span class="comment">// c = 18 bytes</span></div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <span class="comment">// r = 6 bits</span></div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;    std::size_t _c; <span class="comment">// number of full bytes</span></div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    std::size_t _r; <span class="comment">// number of remaining bits</span></div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    buffer_t _row_buffer;</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="keyword">template</span>&lt;<span class="keyword">typename</span> Pixel&gt;</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="keyword">struct </span>row_buffer_helper</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;&lt;</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    Pixel,</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    typename std::enable_if</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    &lt;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;        mp11::mp_and</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;        &lt;</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;            typename is_bit_aligned&lt;Pixel&gt;::type,</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;            typename is_homogeneous&lt;Pixel&gt;::type</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        &gt;::value</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    &gt;</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;&gt;</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;{</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    <span class="keyword">using</span> element_t = byte_t;</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    <span class="keyword">using</span> buffer_t = std::vector&lt;element_t&gt;;</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;    <span class="keyword">using</span> pixel_type = Pixel;</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    <span class="keyword">using</span> iterator_t = bit_aligned_pixel_iterator&lt;pixel_type&gt;;</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    row_buffer_helper( std::size_t width</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;                     , <span class="keywordtype">bool</span>        in_bytes</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;                     )</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    : _c( ( width</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;          * num_channels&lt; pixel_type &gt;::value</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;          * channel_type&lt; pixel_type &gt;::type::num_bits</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;          )</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;          &gt;&gt; 3</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;        )</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    , _r( width</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;        * num_channels&lt; pixel_type &gt;::value</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;        * channel_type&lt; pixel_type &gt;::type::num_bits</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;        - ( _c &lt;&lt; 3 )</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;       )</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    {</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;        <span class="keywordflow">if</span>( in_bytes )</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;        {</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;            _row_buffer.resize( width );</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;        }</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;        <span class="keywordflow">else</span></div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;        {</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;            <span class="comment">// add one byte if there are remaining bits</span></div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;            _row_buffer.resize( _c + ( _r!=0 ));</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        }</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    }</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    element_t* data() { <span class="keywordflow">return</span> &amp;_row_buffer[0]; }</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    iterator_t begin() { <span class="keywordflow">return</span> iterator_t( &amp;_row_buffer.front(),0 ); }</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    iterator_t end()   { <span class="keywordflow">return</span> _r == 0 ? iterator_t( &amp;_row_buffer.back() + 1,  0 )</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;                                        : iterator_t( &amp;_row_buffer.back()    , (int) _r );</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;                       }</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    buffer_t&amp; buffer() { <span class="keywordflow">return</span> _row_buffer; }</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    <span class="comment">// For instance 25 pixels of rgb2 type would be:</span></div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    <span class="comment">// overall 25 pixels * 3 channels * 2 bits/channel = 150 bits</span></div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    <span class="comment">// c = 18 bytes</span></div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    <span class="comment">// r = 6 bits</span></div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;    std::size_t _c; <span class="comment">// number of full bytes</span></div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;    std::size_t _r; <span class="comment">// number of remaining bits</span></div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;    buffer_t _row_buffer;</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;};</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> View, <span class="keyword">typename</span> D = <span class="keywordtype">void</span>&gt;</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;<span class="keyword">struct </span>row_buffer_helper_view : row_buffer_helper&lt;typename View::value_type&gt;</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;{</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;    row_buffer_helper_view(std::size_t width, <span class="keywordtype">bool</span> in_bytes)</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;        : row_buffer_helper&lt;typename View::value_type&gt;(width, in_bytes)</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    {}</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;};</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> View&gt;</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;<span class="keyword">struct </span>row_buffer_helper_view</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;&lt;</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;    View,</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;    typename std::enable_if</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;    &lt;</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;        is_bit_aligned&lt;typename View::value_type&gt;::value</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;    &gt;::type</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;&gt; : row_buffer_helper&lt;typename View::reference&gt;</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;{</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;    row_buffer_helper_view(std::size_t width, <span class="keywordtype">bool</span> in_bytes)</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;        : row_buffer_helper&lt;typename View::reference&gt;(width, in_bytes)</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;    {}</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;};</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;} <span class="comment">// namespace detail</span></div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;} <span class="comment">// namespace gil</span></div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;} <span class="comment">// namespace boost</span></div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;<span class="preprocessor">#endif</span></div></div><!-- fragment --></div><!-- contents -->
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