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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_1878a3f4746a95c6aad317458cc7ef80.html">boost</a></li><li class="navelem"><a class="el" href="dir_df4750f408086f9b9c1b5ee4251365ff.html">gil</a></li> </ul>
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<div class="title">utilities.hpp</div> </div>
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<a href="utilities_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> Copyright 2005-2007 Adobe Systems Incorporated</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> </span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> Use, modification and distribution are subject to the Boost Software License,</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at</span></div>
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<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>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"></span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> See http://opensource.adobe.com/gil for most recent version including documentation.</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">/*************************************************************************************************/</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#ifndef GIL_UTILITIES_H</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"></span><span class="preprocessor">#define GIL_UTILITIES_H</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include "<a class="code" href="gil__config_8hpp.html">gil_config.hpp</a>"</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <functional></span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#include <boost/config/no_tr1/cmath.hpp></span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <cstddef></span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <algorithm></span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <utility></span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <iterator></span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <boost/static_assert.hpp></span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <boost/type_traits.hpp></span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <boost/mpl/size.hpp></span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <boost/mpl/distance.hpp></span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <boost/mpl/begin.hpp></span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <boost/mpl/find.hpp></span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <boost/mpl/range_c.hpp></span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <boost/iterator/iterator_adaptor.hpp></span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <boost/iterator/iterator_facade.hpp></span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment">// CLASS point2</span></div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"></span></div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="keyword">class </span>point2 {</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">typedef</span> T value_type;</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">template</span> <std::<span class="keywordtype">size_t</span> D> <span class="keyword">struct </span>axis { <span class="keyword">typedef</span> value_type coord_t; };</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">static</span> <span class="keyword">const</span> std::size_t num_dimensions=2;</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  point2() : x(0), y(0) {}</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  point2(T newX, T newY) : x(newX), y(newY) {}</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  point2(<span class="keyword">const</span> point2& p) : x(p.x), y(p.y) {}</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  ~point2() {}</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  point2& operator=(<span class="keyword">const</span> point2& p) { x=p.x; y=p.y; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  point2 operator<<(std::ptrdiff_t shift)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> point2(x<<shift,y<<shift); }</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  point2 operator>>(std::ptrdiff_t shift)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> point2(x>>shift,y>>shift); }</div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  point2& operator+=(<span class="keyword">const</span> point2& p) { x+=p.x; y+=p.y; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  point2& operator-=(<span class="keyword">const</span> point2& p) { x-=p.x; y-=p.y; <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  point2& operator/=(<span class="keywordtype">double</span> t) { <span class="keywordflow">if</span> (t<0 || 0<t) { x/=t; y/=t; } <span class="keywordflow">return</span> *<span class="keyword">this</span>; }</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">const</span> T& operator[](std::size_t i)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> this->*mem_array[i]; }</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  T& operator[](std::size_t i) { <span class="keywordflow">return</span> this->*mem_array[i]; }</div>
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<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div>
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<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  T x,y;</div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// this static array of pointers to member variables makes operator[] safe and doesn't seem to exhibit any performance penalty</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keyword">static</span> T point2<T>::* <span class="keyword">const</span> mem_array[num_dimensions];</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> };</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> T point2<T>::* <span class="keyword">const</span> point2<T>::mem_array[point2<T>::num_dimensions] = { &point2<T>::x, &point2<T>::y };</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T> BOOST_FORCEINLINE</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> point2<T>& p1, <span class="keyword">const</span> point2<T>& p2) { <span class="keywordflow">return</span> (p1.x==p2.x && p1.y==p2.y); }</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T> BOOST_FORCEINLINE</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> point2<T>& p1, <span class="keyword">const</span> point2<T>& p2) { <span class="keywordflow">return</span> p1.x!=p2.x || p1.y!=p2.y; }</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T> BOOST_FORCEINLINE</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> point2<T> operator+(<span class="keyword">const</span> point2<T>& p1, <span class="keyword">const</span> point2<T>& p2) { <span class="keywordflow">return</span> point2<T>(p1.x+p2.x,p1.y+p2.y); }</div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T> BOOST_FORCEINLINE</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> point2<T> operator-(<span class="keyword">const</span> point2<T>& p) { <span class="keywordflow">return</span> point2<T>(-p.x,-p.y); }</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T> BOOST_FORCEINLINE</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> point2<T> operator-(<span class="keyword">const</span> point2<T>& p1, <span class="keyword">const</span> point2<T>& p2) { <span class="keywordflow">return</span> point2<T>(p1.x-p2.x,p1.y-p2.y); }</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T> BOOST_FORCEINLINE</div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> point2<double> operator/(<span class="keyword">const</span> point2<T>& p, <span class="keywordtype">double</span> t) { <span class="keywordflow">return</span> (t<0 || 0<t) ? point2<double>(p.x/t,p.y/t) : point2<double>(0,0); }</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T> BOOST_FORCEINLINE</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> point2<T> operator*(<span class="keyword">const</span> point2<T>& p, std::ptrdiff_t t) { <span class="keywordflow">return</span> point2<T>(p.x*t,p.y*t); }</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T> BOOST_FORCEINLINE</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> point2<T> operator*(std::ptrdiff_t t, <span class="keyword">const</span> point2<T>& p) { <span class="keywordflow">return</span> point2<T>(p.x*t,p.y*t); }</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="keyword">template</span> <std::<span class="keywordtype">size_t</span> K, <span class="keyword">typename</span> T> BOOST_FORCEINLINE</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> <span class="keyword">const</span> T& axis_value(<span class="keyword">const</span> point2<T>& p) { <span class="keywordflow">return</span> p[K]; }</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
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<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="keyword">template</span> <std::<span class="keywordtype">size_t</span> K, <span class="keyword">typename</span> T> BOOST_FORCEINLINE</div>
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<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  T& axis_value( point2<T>& p) { <span class="keywordflow">return</span> p[K]; }</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> </div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">inline</span> std::ptrdiff_t iround(<span class="keywordtype">float</span> x ) { <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>std::ptrdiff_t<span class="keyword">></span>(x + (x < 0.0f ? -0.5f : 0.5f)); }</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="keyword">inline</span> std::ptrdiff_t iround(<span class="keywordtype">double</span> x) { <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>std::ptrdiff_t<span class="keyword">></span>(x + (x < 0.0 ? -0.5 : 0.5)); }</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="keyword">inline</span> std::ptrdiff_t ifloor(<span class="keywordtype">float</span> x ) { <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>std::ptrdiff_t<span class="keyword">></span>(std::floor(x)); }</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="keyword">inline</span> std::ptrdiff_t ifloor(<span class="keywordtype">double</span> x) { <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>std::ptrdiff_t<span class="keyword">></span>(std::floor(x)); }</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="keyword">inline</span> std::ptrdiff_t iceil(<span class="keywordtype">float</span> x ) { <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>std::ptrdiff_t<span class="keyword">></span>(std::ceil(x)); }</div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="keyword">inline</span> std::ptrdiff_t iceil(<span class="keywordtype">double</span> x) { <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>std::ptrdiff_t<span class="keyword">></span>(std::ceil(x)); }</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="keyword">inline</span> point2<std::ptrdiff_t> iround(<span class="keyword">const</span> point2<float >& p) { <span class="keywordflow">return</span> point2<std::ptrdiff_t>(iround(p.x),iround(p.y)); }</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="keyword">inline</span> point2<std::ptrdiff_t> iround(<span class="keyword">const</span> point2<double>& p) { <span class="keywordflow">return</span> point2<std::ptrdiff_t>(iround(p.x),iround(p.y)); }</div>
|
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="keyword">inline</span> point2<std::ptrdiff_t> ifloor(<span class="keyword">const</span> point2<float >& p) { <span class="keywordflow">return</span> point2<std::ptrdiff_t>(ifloor(p.x),ifloor(p.y)); }</div>
|
||
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="keyword">inline</span> point2<std::ptrdiff_t> ifloor(<span class="keyword">const</span> point2<double>& p) { <span class="keywordflow">return</span> point2<std::ptrdiff_t>(ifloor(p.x),ifloor(p.y)); }</div>
|
||
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="keyword">inline</span> point2<std::ptrdiff_t> iceil (<span class="keyword">const</span> point2<float >& p) { <span class="keywordflow">return</span> point2<std::ptrdiff_t>(iceil(p.x), iceil(p.y)); }</div>
|
||
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> <span class="keyword">inline</span> point2<std::ptrdiff_t> iceil (<span class="keyword">const</span> point2<double>& p) { <span class="keywordflow">return</span> point2<std::ptrdiff_t>(iceil(p.x), iceil(p.y)); }</div>
|
||
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
|
||
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div>
|
||
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T> </div>
|
||
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="keyword">inline</span> T align(T val, std::size_t alignment) { </div>
|
||
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">return</span> val+(alignment - val%alignment)%alignment; </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> </div>
|
||
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="keyword">template</span> <<span class="keyword">typename</span> ConstT, <span class="keyword">typename</span> Value, <span class="keyword">typename</span> Reference, <span class="keyword">typename</span> ConstReference,</div>
|
||
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keyword">typename</span> ArgType, <span class="keyword">typename</span> ResultType, <span class="keywordtype">bool</span> IsMutable></div>
|
||
<div class="line"><a name="l00182"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1deref__base.html"> 182</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1deref__base.html">deref_base</a> {</div>
|
||
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">typedef</span> ArgType argument_type;</div>
|
||
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">typedef</span> ResultType result_type;</div>
|
||
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keyword">typedef</span> ConstT const_t;</div>
|
||
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keyword">typedef</span> Value value_type;</div>
|
||
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keyword">typedef</span> Reference reference;</div>
|
||
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keyword">typedef</span> ConstReference const_reference;</div>
|
||
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  BOOST_STATIC_CONSTANT(<span class="keywordtype">bool</span>, is_mutable = IsMutable);</div>
|
||
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> };</div>
|
||
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div>
|
||
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="keyword">template</span> <<span class="keyword">typename</span> D1, <span class="keyword">typename</span> D2></div>
|
||
<div class="line"><a name="l00196"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1deref__compose.html"> 196</a></span> <span class="keyword">class </span><a class="code" href="classboost_1_1gil_1_1deref__compose.html">deref_compose</a> : <span class="keyword">public</span> <a class="code" href="structboost_1_1gil_1_1deref__base.html">deref_base</a><</div>
|
||
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  deref_compose<typename D1::const_t, typename D2::const_t>,</div>
|
||
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  typename D1::value_type, typename D1::reference, typename D1::const_reference, </div>
|
||
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  typename D2::argument_type, typename D1::result_type, D1::is_mutable && D2::is_mutable></div>
|
||
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> {</div>
|
||
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="keyword">public</span>:</div>
|
||
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  D1 _fn1;</div>
|
||
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  D2 _fn2;</div>
|
||
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div>
|
||
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> D2::argument_type argument_type;</div>
|
||
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> D1::result_type result_type;</div>
|
||
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div>
|
||
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <a class="code" href="classboost_1_1gil_1_1deref__compose.html">deref_compose</a>() {}</div>
|
||
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <a class="code" href="classboost_1_1gil_1_1deref__compose.html">deref_compose</a>(<span class="keyword">const</span> D1& x, <span class="keyword">const</span> D2& y) : _fn1(x), _fn2(y) {}</div>
|
||
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <a class="code" href="classboost_1_1gil_1_1deref__compose.html">deref_compose</a>(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1deref__compose.html">deref_compose</a>& dc) : _fn1(dc._fn1), _fn2(dc._fn2) {}</div>
|
||
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keyword">template</span> <<span class="keyword">typename</span> _D1, <span class="keyword">typename</span> _D2> <a class="code" href="classboost_1_1gil_1_1deref__compose.html">deref_compose</a>(<span class="keyword">const</span> <a class="code" href="classboost_1_1gil_1_1deref__compose.html">deref_compose<_D1,_D2></a>& dc) : _fn1(dc._fn1), _fn2(dc._fn2) {}</div>
|
||
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> </div>
|
||
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  result_type operator()(argument_type x)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _fn1(_fn2(x)); }</div>
|
||
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  result_type operator()(argument_type x) { <span class="keywordflow">return</span> _fn1(_fn2(x)); }</div>
|
||
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> };</div>
|
||
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div>
|
||
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment">// reinterpret_cast is implementation-defined. Static cast is not.</span></div>
|
||
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="keyword">template</span> <<span class="keyword">typename</span> OutPtr, <span class="keyword">typename</span> In> BOOST_FORCEINLINE</div>
|
||
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  OutPtr gil_reinterpret_cast( In* p) { <span class="keywordflow">return</span> <span class="keyword">static_cast<</span>OutPtr<span class="keyword">></span>(<span class="keyword">static_cast<</span><span class="keywordtype">void</span>*<span class="keyword">></span>(p)); }</div>
|
||
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </div>
|
||
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="keyword">template</span> <<span class="keyword">typename</span> OutPtr, <span class="keyword">typename</span> In> BOOST_FORCEINLINE</div>
|
||
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="keyword">const</span> OutPtr gil_reinterpret_cast_c(<span class="keyword">const</span> In* p) { <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keyword">const </span>OutPtr<span class="keyword">></span>(<span class="keyword">static_cast<</span><span class="keyword">const </span><span class="keywordtype">void</span>*<span class="keyword">></span>(p)); }</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> <span class="keyword">namespace </span>detail {</div>
|
||
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> </div>
|
||
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div>
|
||
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="keyword">template</span> <<span class="keyword">class</span> InputIter, <span class="keyword">class</span> Size, <span class="keyword">class</span> OutputIter></div>
|
||
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> std::pair<InputIter, OutputIter> _copy_n(InputIter first, Size count,</div>
|
||
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  OutputIter result,</div>
|
||
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  std::input_iterator_tag) {</div>
|
||
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">for</span> ( ; count > 0; --count) {</div>
|
||
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  *result = *first;</div>
|
||
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  ++first;</div>
|
||
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  ++result;</div>
|
||
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  }</div>
|
||
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">return</span> std::pair<InputIter, OutputIter>(first, result);</div>
|
||
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span> }</div>
|
||
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> </div>
|
||
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> <span class="keyword">template</span> <<span class="keyword">class</span> RAIter, <span class="keyword">class</span> Size, <span class="keyword">class</span> OutputIter></div>
|
||
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span class="keyword">inline</span> std::pair<RAIter, OutputIter></div>
|
||
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span> _copy_n(RAIter first, Size count, OutputIter result, std::random_access_iterator_tag) {</div>
|
||
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  RAIter last = first + count;</div>
|
||
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">return</span> std::pair<RAIter, OutputIter>(last, <a class="code" href="group___s_t_l_optimizations.html#ga0881964a0319aa859cda6408c5a1cda2">std::copy</a>(first, last, result));</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> </div>
|
||
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="keyword">template</span> <<span class="keyword">class</span> InputIter, <span class="keyword">class</span> Size, <span class="keyword">class</span> OutputIter></div>
|
||
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span> <span class="keyword">inline</span> std::pair<InputIter, OutputIter></div>
|
||
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span> _copy_n(InputIter first, Size count, OutputIter result) {</div>
|
||
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">return</span> _copy_n(first, count, result, <span class="keyword">typename</span> std::iterator_traits<InputIter>::iterator_category());</div>
|
||
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span> }</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> <span class="keyword">template</span> <<span class="keyword">class</span> InputIter, <span class="keyword">class</span> Size, <span class="keyword">class</span> OutputIter></div>
|
||
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span> <span class="keyword">inline</span> std::pair<InputIter, OutputIter></div>
|
||
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span> copy_n(InputIter first, Size count, OutputIter result) {</div>
|
||
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">return</span> detail::_copy_n(first, count, result);</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> </div>
|
||
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
|
||
<div class="line"><a name="l00265"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1identity.html"> 265</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1identity.html">identity</a> {</div>
|
||
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keyword">typedef</span> T argument_type;</div>
|
||
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keyword">typedef</span> T result_type;</div>
|
||
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keyword">const</span> T& operator()(<span class="keyword">const</span> T& val)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> val; }</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> </div>
|
||
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> <span class="comment">/*************************************************************************************************/</span></div>
|
||
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div>
|
||
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2></div>
|
||
<div class="line"><a name="l00275"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1plus__asymmetric.html"> 275</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1plus__asymmetric.html">plus_asymmetric</a> {</div>
|
||
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keyword">typedef</span> T1 first_argument_type;</div>
|
||
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keyword">typedef</span> T2 second_argument_type;</div>
|
||
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keyword">typedef</span> T1 result_type;</div>
|
||
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  T1 operator()(T1 f1, T2 f2)<span class="keyword"> const </span>{</div>
|
||
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">return</span> f1+f2;</div>
|
||
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  }</div>
|
||
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> };</div>
|
||
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span> </div>
|
||
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span> <span class="comment">/*************************************************************************************************/</span></div>
|
||
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> </div>
|
||
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
|
||
<div class="line"><a name="l00288"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1inc.html"> 288</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1inc.html">inc</a> {</div>
|
||
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keyword">typedef</span> T argument_type;</div>
|
||
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keyword">typedef</span> T result_type;</div>
|
||
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  T operator()(T x)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> ++x; }</div>
|
||
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> };</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> <span class="comment">/*************************************************************************************************/</span></div>
|
||
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> </div>
|
||
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
|
||
<div class="line"><a name="l00298"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1dec.html"> 298</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1dec.html">dec</a> {</div>
|
||
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keyword">typedef</span> T argument_type;</div>
|
||
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keyword">typedef</span> T result_type;</div>
|
||
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  T operator()(T x)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> --x; }</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> </div>
|
||
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> <span class="comment">// a given MPL RandomAccessSequence (or size if the type is not present)</span></div>
|
||
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Types, <span class="keyword">typename</span> T></div>
|
||
<div class="line"><a name="l00307"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1detail_1_1type__to__index.html"> 307</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1detail_1_1type__to__index.html">type_to_index</a> </div>
|
||
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  : <span class="keyword">public</span> mpl::distance<typename mpl::begin<Types>::type, </div>
|
||
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  typename mpl::find<Types,T>::type>::type {};</div>
|
||
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> } <span class="comment">// namespace detail</span></div>
|
||
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </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> </div>
|
||
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> template <typename ColorSpace, typename ChannelMapping = mpl::range_c<int,0,mpl::size<ColorSpace>::value> ></div>
|
||
<div class="line"><a name="l00317"></a><span class="lineno"><a class="line" href="structboost_1_1gil_1_1layout.html"> 317</a></span> <span class="keyword">struct </span><a class="code" href="structboost_1_1gil_1_1layout.html">layout</a> {</div>
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<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keyword">typedef</span> ColorSpace color_space_t;</div>
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<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keyword">typedef</span> ChannelMapping channel_mapping_t;</div>
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<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> };</div>
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<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> </div>
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<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="keyword">template</span> <<span class="keyword">typename</span> Value, <span class="keyword">typename</span> T1, <span class="keyword">typename</span> T2> <span class="comment">// where value_type<T1> == value_type<T2> == Value</span></div>
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<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <span class="keywordtype">void</span> swap_proxy(T1& left, T2& right) {</div>
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<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  Value tmp = left;</div>
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<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  left = right;</div>
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<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  right = tmp;</div>
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<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> }</div>
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<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div>
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<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> little_endian() {</div>
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<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="keywordtype">short</span> tester = 0x0001;</div>
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<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordflow">return</span> *(<span class="keywordtype">char</span>*)&tester!=0;</div>
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<div class="line"><a name="l00334"></a><span class="lineno"> 334</span> }</div>
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<div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> big_endian() {</div>
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<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordflow">return</span> !little_endian();</div>
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<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> }</div>
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<div class="line"><a name="l00339"></a><span class="lineno"> 339</span> </div>
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<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> } } <span class="comment">// namespace boost::gil</span></div>
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<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div>
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<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> <span class="preprocessor">#endif</span></div>
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<div class="ttc" id="structboost_1_1gil_1_1detail_1_1plus__asymmetric_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1plus__asymmetric.html">boost::gil::detail::plus_asymmetric</a></div><div class="ttdoc">plus function object whose arguments may be of different type. </div><div class="ttdef"><b>Definition:</b> utilities.hpp:275</div></div>
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<div class="ttc" id="group___s_t_l_optimizations_html_ga0881964a0319aa859cda6408c5a1cda2"><div class="ttname"><a href="group___s_t_l_optimizations.html#ga0881964a0319aa859cda6408c5a1cda2">std::copy</a></div><div class="ttdeci">BOOST_FORCEINLINE boost::gil::pixel< T, Cs > * copy(boost::gil::pixel< T, Cs > *first, boost::gil::pixel< T, Cs > *last, boost::gil::pixel< T, Cs > *dst)</div><div class="ttdoc">Copy when both src and dst are interleaved and of the same type can be just memmove. </div><div class="ttdef"><b>Definition:</b> algorithm.hpp:151</div></div>
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||
<div class="ttc" id="structboost_1_1gil_1_1deref__base_html"><div class="ttname"><a href="structboost_1_1gil_1_1deref__base.html">boost::gil::deref_base</a></div><div class="ttdoc">Helper base class for pixel dereference adaptors. </div><div class="ttdef"><b>Definition:</b> utilities.hpp:182</div></div>
|
||
<div class="ttc" id="structboost_1_1gil_1_1detail_1_1dec_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1dec.html">boost::gil::detail::dec</a></div><div class="ttdoc">operator– wrapped in a function object </div><div class="ttdef"><b>Definition:</b> utilities.hpp:298</div></div>
|
||
<div class="ttc" id="structboost_1_1gil_1_1detail_1_1identity_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1identity.html">boost::gil::detail::identity</a></div><div class="ttdoc">identity taken from SGI STL. </div><div class="ttdef"><b>Definition:</b> utilities.hpp:265</div></div>
|
||
<div class="ttc" id="structboost_1_1gil_1_1detail_1_1inc_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1inc.html">boost::gil::detail::inc</a></div><div class="ttdoc">operator++ wrapped in a function object </div><div class="ttdef"><b>Definition:</b> utilities.hpp:288</div></div>
|
||
<div class="ttc" id="structboost_1_1gil_1_1layout_html"><div class="ttname"><a href="structboost_1_1gil_1_1layout.html">boost::gil::layout</a></div><div class="ttdoc">Represents a color space and ordering of channels in memory. </div><div class="ttdef"><b>Definition:</b> utilities.hpp:317</div></div>
|
||
<div class="ttc" id="classboost_1_1gil_1_1deref__compose_html"><div class="ttname"><a href="classboost_1_1gil_1_1deref__compose.html">boost::gil::deref_compose</a></div><div class="ttdoc">Composes two dereference function objects. Similar to std::unary_compose but needs to pull some typed...</div><div class="ttdef"><b>Definition:</b> utilities.hpp:196</div></div>
|
||
<div class="ttc" id="gil__config_8hpp_html"><div class="ttname"><a href="gil__config_8hpp.html">gil_config.hpp</a></div><div class="ttdoc">GIL configuration file. </div></div>
|
||
<div class="ttc" id="structboost_1_1gil_1_1detail_1_1type__to__index_html"><div class="ttname"><a href="structboost_1_1gil_1_1detail_1_1type__to__index.html">boost::gil::detail::type_to_index</a></div><div class="ttdoc">Returns the index corresponding to the first occurrance of a given given type in. ...</div><div class="ttdef"><b>Definition:</b> utilities.hpp:307</div></div>
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