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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Copyright 2005-2007 Adobe Systems Incorporated</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">//</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Distributed under the Boost Software License, Version 1.0</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// See accompanying file LICENSE_1_0.txt or copy at</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// http://www.boost.org/LICENSE_1_0.txt</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#ifndef BOOST_GIL_POINT_HPP</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#define BOOST_GIL_POINT_HPP</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <boost/gil/utilities.hpp></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <boost/gil/detail/std_common_type.hpp></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> </div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include <boost/config.hpp></span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <cstddef></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <type_traits></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="keyword">namespace </span>boost { <span class="keyword">namespace </span>gil {</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">class </span>point</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> {</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">using</span> value_type = T;</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> D></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">struct </span>axis</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  {</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">using</span> coord_t = value_type;</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  };</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">static</span> constexpr std::size_t num_dimensions = 2;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  point() = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  point(T px, T py) : x(px), y(py) {}</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  point operator<<(std::ptrdiff_t shift)<span class="keyword"> const</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">return</span> point(x << shift, y << shift);</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  point operator>>(std::ptrdiff_t shift)<span class="keyword"> const</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">return</span> point(x >> shift, y >> shift);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  point& operator+=(point <span class="keyword">const</span>& p)</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  {</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  x += p.x;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  y += p.y;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  point& operator-=(point <span class="keyword">const</span>& p)</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  {</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  x -= p.x;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  y -= p.y;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  point& operator/=(<span class="keywordtype">double</span> d)</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  {</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">if</span> (d < 0 || 0 < d)</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  {</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  x = static_cast<T>(x / d);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  y = static_cast<T>(y / d);</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  }</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  }</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  point& operator*=(<span class="keywordtype">double</span> d)</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  {</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  x = static_cast<T>(x * d);</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  y = static_cast<T>(y * d);</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  }</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  T <span class="keyword">const</span>& operator[](std::size_t i)<span class="keyword"> const</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="keyword"> </span>{</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordflow">return</span> this->*mem_array[i];</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  }</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  T& operator[](std::size_t i)</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  {</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">return</span> this->*mem_array[i];</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  }</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  T x{0};</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  T y{0};</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">// this static array of pointers to member variables makes operator[] safe</span></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// and doesn't seem to exhibit any performance penalty.</span></div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">static</span> T point<T>::* <span class="keyword">const</span> mem_array[num_dimensions];</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> };</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">using</span> point2 = point<T>;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="keyword">using</span> point_t = point<std::ptrdiff_t>;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> T point<T>::* <span class="keyword">const</span> point<T>::mem_array[point<T>::num_dimensions] =</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> {</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  &point<T>::x,</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  &point<T>::y</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> };</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> BOOST_FORCEINLINE</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> point<T>& p1, <span class="keyword">const</span> point<T>& p2)</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> {</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">return</span> p1.x == p2.x && p1.y == p2.y;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> }</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> BOOST_FORCEINLINE</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> point<T>& p1, <span class="keyword">const</span> point<T>& p2)</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> {</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> p1.x != p2.x || p1.y != p2.y;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> }</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> BOOST_FORCEINLINE</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> point<T> operator+(<span class="keyword">const</span> point<T>& p1, <span class="keyword">const</span> point<T>& p2)</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> {</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">return</span> { p1.x + p2.x, p1.y + p2.y };</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> }</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> BOOST_FORCEINLINE</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> point<T> operator-(<span class="keyword">const</span> point<T>& p)</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> {</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">return</span> { -p.x, -p.y };</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span> }</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> BOOST_FORCEINLINE</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> point<T> operator-(<span class="keyword">const</span> point<T>& p1, <span class="keyword">const</span> point<T>& p2)</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> {</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">return</span> { p1.x - p2.x, p1.y - p2.y };</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> }</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T, <span class="keyword">typename</span> D></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> BOOST_FORCEINLINE</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="keyword">auto</span> operator/(point<T> <span class="keyword">const</span>& p, D d)</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  -> <span class="keyword">typename</span> std::enable_if</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>  std::is_arithmetic<D>::value,</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  point<typename detail::std_common_type<T, D>::type></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  >::type</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>  static_assert(std::is_arithmetic<D>::value, <span class="stringliteral">"denominator is not arithmetic type"</span>);</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keyword">using</span> result_type = <span class="keyword">typename</span> detail::std_common_type<T, D>::type;</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">if</span> (d < 0 || 0 < d)</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  {</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordtype">double</span> <span class="keyword">const</span> x = static_cast<double>(p.x) / static_cast<double>(d);</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordtype">double</span> <span class="keyword">const</span> y = static_cast<double>(p.y) / static_cast<double>(d);</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">return</span> point<result_type>{</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  static_cast<result_type>(iround(x)),</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  static_cast<result_type>(iround(y))};</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  }</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  {</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">return</span> point<result_type>{0, 0};</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  }</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="l00193"></a><span class="lineno"> 193</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T, <span class="keyword">typename</span> M></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> BOOST_FORCEINLINE</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="keyword">auto</span> operator*(point<T> <span class="keyword">const</span>& p, M m)</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  -> <span class="keyword">typename</span> std::enable_if</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  std::is_arithmetic<M>::value,</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  point<typename detail::std_common_type<T, M>::type></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  >::type</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> {</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  static_assert(std::is_arithmetic<M>::value, <span class="stringliteral">"multiplier is not arithmetic type"</span>);</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keyword">using</span> result_type = <span class="keyword">typename</span> detail::std_common_type<T, M>::type;</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">return</span> point<result_type>{p.x * m, p.y * m};</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span> }</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> </div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T, <span class="keyword">typename</span> M></div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> BOOST_FORCEINLINE</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="keyword">auto</span> operator*(M m, point<T> <span class="keyword">const</span>& p)</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  -> <span class="keyword">typename</span> std::enable_if</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>  std::is_arithmetic<M>::value,</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  point<typename detail::std_common_type<T, M>::type></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  >::type</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>  static_assert(std::is_arithmetic<M>::value, <span class="stringliteral">"multiplier is not arithmetic type"</span>);</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keyword">using</span> result_type = <span class="keyword">typename</span> detail::std_common_type<T, M>::type;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">return</span> point<result_type>{p.x * m, p.y * m};</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> </div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="keyword">template</span> <std::<span class="keywordtype">size_t</span> K, <span class="keyword">typename</span> T></div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> BOOST_FORCEINLINE</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> T <span class="keyword">const</span>& axis_value(point<T> <span class="keyword">const</span>& p)</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> {</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  static_assert(K < point<T>::num_dimensions, <span class="stringliteral">"axis index out of range"</span>);</div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordflow">return</span> p[K];</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> }</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="keyword">template</span> <std::<span class="keywordtype">size_t</span> K, <span class="keyword">typename</span> T></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> BOOST_FORCEINLINE</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span> T& axis_value(point<T>& p)</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span> {</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  static_assert(K < point<T>::num_dimensions, <span class="stringliteral">"axis index out of range"</span>);</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">return</span> p[K];</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> }</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span> </div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span> </div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> <span class="keyword">inline</span> point<std::ptrdiff_t> iround(point<T> <span class="keyword">const</span>& p)</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>  static_assert(std::is_integral<T>::value, <span class="stringliteral">"T is not integer"</span>);</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">return</span> { static_cast<std::ptrdiff_t>(p.x), static_cast<std::ptrdiff_t>(p.y) };</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> }</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span> </div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="keyword">inline</span> point<std::ptrdiff_t> iround(point<float> <span class="keyword">const</span>& p)</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> {</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keywordflow">return</span> { iround(p.x), iround(p.y) };</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span> }</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> <span class="keyword">inline</span> point<std::ptrdiff_t> iround(point<double> <span class="keyword">const</span>& p)</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> {</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keywordflow">return</span> { iround(p.x), iround(p.y) };</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> }</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> </div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="keyword">inline</span> point<std::ptrdiff_t> ifloor(point<float> <span class="keyword">const</span>& p)</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>  <span class="keywordflow">return</span> { ifloor(p.x), ifloor(p.y) };</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</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">inline</span> point<std::ptrdiff_t> ifloor(point<double> <span class="keyword">const</span>& p)</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> {</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordflow">return</span> { ifloor(p.x), ifloor(p.y) };</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> }</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span> </div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="keyword">inline</span> point<std::ptrdiff_t> iceil(point<float> <span class="keyword">const</span>& p)</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>  <span class="keywordflow">return</span> { iceil(p.x), iceil(p.y) };</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> </div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="keyword">inline</span> point<std::ptrdiff_t> iceil(point<double> <span class="keyword">const</span>& p)</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> {</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordflow">return</span> { iceil(p.x), iceil(p.y) };</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> }</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> </div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> }} <span class="comment">// namespace boost::gil</span></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> <span class="preprocessor">#endif</span></div></div><!-- fragment --></div><!-- contents -->
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