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<a href="_saturate_cast_8h.xhtml">Go to the documentation of this file.</a><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 (c) 2018-2019 ARM Limited.</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"> * SPDX-License-Identifier: MIT</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * of this software and associated documentation files (the &quot;Software&quot;), to</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> * deal in the Software without restriction, including without limitation the</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> * sell copies of the Software, and to permit persons to whom the Software is</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> * furnished to do so, subject to the following conditions:</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> * The above copyright notice and this permission notice shall be included in all</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> * copies or substantial portions of the Software.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> * THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;<span class="comment"> * SOFTWARE.</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#ifndef ARM_COMPUTE_UTILS_CAST_SATURATE_CAST_H</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#define ARM_COMPUTE_UTILS_CAST_SATURATE_CAST_H</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="utils_2misc_2_rounding_8h.xhtml">arm_compute/core/utils/misc/Rounding.h</a>&quot;</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="utils_2misc_2traits_8h.xhtml">arm_compute/core/utils/misc/Traits.h</a>&quot;</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="_utility_8h.xhtml">arm_compute/core/utils/misc/Utility.h</a>&quot;</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacearm__compute.xhtml">arm_compute</a></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;{</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="keyword">namespace </span>utils</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;{</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacearm__compute_1_1test_1_1validation.xhtml#ab6297d0cdabfa96a652333a57dc77f79">cast</a></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;<span class="comment">// *INDENT-OFF*</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;<span class="comment">// clang-format off</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="comment">// same type</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;std::is_same&lt;T, U&gt;::value, <span class="keywordtype">int</span> &gt;<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">::type</a> = 0 &gt;</div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a"> 43</a></span>&#160;T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</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; <span class="keywordflow">return</span> v;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;}</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;<span class="comment">// signed -&gt; signed widening/same_width</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;std::is_integral&lt;T&gt;::value &amp;&amp;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; std::is_integral&lt;U&gt;::value &amp;&amp;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; std::is_signed&lt;U&gt;() &amp;&amp;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; std::is_signed&lt;T&gt;() &amp;&amp;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; !std::is_same&lt;T, U&gt;::value &amp;&amp;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <span class="keyword">sizeof</span>(T) &gt;= <span class="keyword">sizeof</span>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>),</div><div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e"> 57</a></span>&#160; <span class="keywordtype">int</span> &gt;<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">::type</a> = 0 &gt;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;<span class="keyword">inline</span> T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;{</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keywordflow">return</span> static_cast&lt;T&gt;(v);</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="comment">// signed -&gt; signed narrowing</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;std::is_integral&lt;T&gt;::value &amp;&amp;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; std::is_integral&lt;U&gt;::value &amp;&amp;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; std::is_signed&lt;U&gt;() &amp;&amp;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; std::is_signed&lt;T&gt;() &amp;&amp;</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; !std::is_same&lt;T, U&gt;::value &amp;&amp;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keyword">sizeof</span>(T) &lt; <span class="keyword">sizeof</span>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>),</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="keywordtype">int</span> &gt;<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">::type</a> = 0 &gt;</div><div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="namespacearm__compute_1_1utils_1_1cast.xhtml#abbc0dfec475206b9c62d87e7405d87ee"> 72</a></span>&#160;<span class="keyword">inline</span> T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160;{</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="keywordflow">return</span> static_cast&lt;T&gt;(utility::clamp&lt;U&gt;(v, <a class="code" href="namespacearm__compute_1_1support_1_1cpp11.xhtml#a73e352c61baaf9c1178da2d30105b04e">std::numeric_limits&lt;T&gt;::lowest</a>(), std::numeric_limits&lt;T&gt;::max()));</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160;}</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">// unsigned -&gt; signed widening</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;std::is_integral&lt;T&gt;::value &amp;&amp;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; std::is_integral&lt;U&gt;::value &amp;&amp;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; std::is_unsigned&lt;U&gt;() &amp;&amp;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; std::is_signed&lt;T&gt;() &amp;&amp;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; !std::is_same&lt;T, U&gt;::value &amp;&amp;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; (<span class="keyword">sizeof</span>(T) &gt; <span class="keyword">sizeof</span>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>)),</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <span class="keywordtype">int</span> &gt;::<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">type</a> = 0 &gt;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;<span class="keyword">inline</span> T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</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; <span class="keywordflow">return</span> static_cast&lt;T&gt;(v);</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="comment">// unsigned -&gt; signed narrowing</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;std::is_integral&lt;T&gt;::value &amp;&amp;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; std::is_integral&lt;U&gt;::value &amp;&amp;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; std::is_unsigned&lt;U&gt;() &amp;&amp;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; std::is_signed&lt;T&gt;() &amp;&amp;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; !std::is_same&lt;T, U&gt;::value &amp;&amp;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="keyword">sizeof</span>(T) &lt; <span class="keyword">sizeof</span>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>),</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keywordtype">int</span> &gt;<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">::type</a> = 0 &gt;</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160;<span class="keyword">inline</span> T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</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; <span class="keywordflow">return</span> static_cast&lt;T&gt;(std::min&lt;U&gt;(v, std::numeric_limits&lt;T&gt;::max()));</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160;}</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160;<span class="comment">// unsigned -&gt; signed same_width</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;std::is_integral&lt;T&gt;::value &amp;&amp;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; std::is_integral&lt;U&gt;::value &amp;&amp;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; std::is_unsigned&lt;U&gt;() &amp;&amp;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; std::is_signed&lt;T&gt;() &amp;&amp;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; !std::is_same&lt;T, U&gt;::value &amp;&amp;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keyword">sizeof</span>(T) == <span class="keyword">sizeof</span>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>),</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keywordtype">int</span> &gt;<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">::type</a> = 0 &gt;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160;<span class="keyword">inline</span> T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;{</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="keywordflow">return</span> static_cast&lt;T&gt;(std::min&lt;U&gt;(v, std::numeric_limits&lt;T&gt;::max()));</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160;}</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;<span class="comment">// signed -&gt; unsigned widening/same width</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;std::is_integral&lt;T&gt;::value &amp;&amp;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; std::is_integral&lt;U&gt;::value &amp;&amp;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; std::is_signed&lt;U&gt;() &amp;&amp;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; std::is_unsigned&lt;T&gt;() &amp;&amp;</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; !std::is_same&lt;T, U&gt;::value &amp;&amp;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="keyword">sizeof</span>(T) &gt;= <span class="keyword">sizeof</span>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>),</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <span class="keywordtype">int</span> &gt;<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">::type</a> = 0 &gt;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160;<span class="keyword">inline</span> T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</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; <span class="keywordflow">return</span> static_cast&lt;T&gt;(std::max&lt;U&gt;(0, v));</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160;}</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160;<span class="comment">// signed -&gt; unsigned narrowing</span></div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;std::is_integral&lt;T&gt;::value &amp;&amp;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; std::is_integral&lt;U&gt;::value &amp;&amp;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; std::is_signed&lt;U&gt;() &amp;&amp;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; std::is_unsigned&lt;T&gt;() &amp;&amp;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; !std::is_same&lt;T, U&gt;::value &amp;&amp;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keyword">sizeof</span>(T) &lt; <span class="keyword">sizeof</span>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>),</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <span class="keywordtype">int</span> &gt;<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">::type</a> = 0 &gt;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160;<span class="keyword">inline</span> T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160;{</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; <span class="keywordflow">return</span> static_cast&lt;T&gt;(utility::clamp&lt;U&gt;(v, 0, std::numeric_limits&lt;T&gt;::max()));</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;<span class="comment">// unsigned -&gt; unsigned widening/same width</span></div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;std::is_integral&lt;T&gt;::value &amp;&amp;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; std::is_integral&lt;U&gt;::value &amp;&amp;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; std::is_unsigned&lt;T&gt;() &amp;&amp;</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; std::is_unsigned&lt;U&gt;() &amp;&amp;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; !std::is_same&lt;T, U&gt;::value &amp;&amp;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="keyword">sizeof</span>(T) &gt;= <span class="keyword">sizeof</span>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>),</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="keywordtype">int</span> &gt;<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">::type</a> = 0 &gt;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160;<span class="keyword">inline</span> T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;{</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="keywordflow">return</span> static_cast&lt;T&gt;(v);</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;}</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;<span class="comment">// unsigned -&gt; unsigned narrowing</span></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;std::is_integral&lt;T&gt;::value &amp;&amp;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; std::is_integral&lt;U&gt;::value &amp;&amp;</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; std::is_unsigned&lt;T&gt;() &amp;&amp;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; std::is_unsigned&lt;U&gt;() &amp;&amp;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; !std::is_same&lt;T, U&gt;::value &amp;&amp;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="keyword">sizeof</span>(T) &lt; <span class="keyword">sizeof</span>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>),</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="keywordtype">int</span> &gt;<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">::type</a> = 0 &gt;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160;<span class="keyword">inline</span> T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;{</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <span class="keywordflow">return</span> static_cast&lt;T&gt;(utility::clamp&lt;U&gt;(v, <a class="code" href="namespacearm__compute_1_1support_1_1cpp11.xhtml#a73e352c61baaf9c1178da2d30105b04e">std::numeric_limits&lt;T&gt;::lowest</a>(), std::numeric_limits&lt;T&gt;::max()));</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="comment">// float -&gt; int</span></div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;std::is_integral&lt;T&gt;::value &amp;&amp;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; traits::is_floating_point&lt;U&gt;::value,</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <span class="keywordtype">int</span> &gt;<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">::type</a> = 0 &gt;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160;<span class="keyword">inline</span> T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160;{</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; int32_t vi = <a class="code" href="namespacearm__compute_1_1utils_1_1rounding.xhtml#aeecc6e8935077dc93cc5079fe98d3adc">utils::rounding::round_half_away_from_zero</a>(v);</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; <span class="keywordflow">return</span> saturate_cast&lt;T&gt;(vi);</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160;}</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160;<span class="comment">// int -&gt; float</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;traits::is_floating_point&lt;T&gt;::value &amp;&amp;</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; std::is_integral&lt;U&gt;::value,</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; <span class="keywordtype">int</span> &gt;<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">::type</a> = 0 &gt;</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;<span class="keyword">inline</span> T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;{</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; <span class="keywordflow">return</span> static_cast&lt;T&gt;(v);</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160;}</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160;<span class="comment">// float -&gt; float</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T,</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; <span class="keyword">typename</span> <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a>,</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; <span class="keyword">typename</span> std::enable_if&lt;traits::is_floating_point&lt;T&gt;::value &amp;&amp;</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; traits::is_floating_point&lt;U&gt;::value,</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; <span class="keywordtype">int</span> &gt;<a class="code" href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">::type</a> = 0 &gt;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160;<span class="keyword">inline</span> T <a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">saturate_cast</a>(<a class="code" href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">U</a> v)</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160;{</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; <span class="keywordflow">return</span> static_cast&lt;T&gt;(v);</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160;}</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160;<span class="comment">// clang-format on</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160;<span class="comment">// *INDENT-ON*</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160;} <span class="comment">// namespace cast</span></div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160;} <span class="comment">// namespace utils</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160;} <span class="comment">// namespace arm_compute</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160;<span class="preprocessor">#endif </span><span class="comment">/* ARM_COMPUTE_UTILS_CAST_SATURATE_CAST_H */</span><span class="preprocessor"></span></div><div class="ttc" id="namespacearm__compute_1_1test_1_1validation_xhtml_ab6297d0cdabfa96a652333a57dc77f79"><div class="ttname"><a href="namespacearm__compute_1_1test_1_1validation.xhtml#ab6297d0cdabfa96a652333a57dc77f79">arm_compute::test::validation::cast</a></div><div class="ttdeci">CLCast cast</div><div class="ttdef"><b>Definition:</b> <a href="_c_l_2_cast_8cpp_source.xhtml#l00169">Cast.cpp:169</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1utils_1_1rounding_xhtml_aeecc6e8935077dc93cc5079fe98d3adc"><div class="ttname"><a href="namespacearm__compute_1_1utils_1_1rounding.xhtml#aeecc6e8935077dc93cc5079fe98d3adc">arm_compute::utils::rounding::round_half_away_from_zero</a></div><div class="ttdeci">T round_half_away_from_zero(T value)</div><div class="ttdoc">Round floating-point value with half value rounding away from zero.</div><div class="ttdef"><b>Definition:</b> <a href="utils_2misc_2_rounding_8h_source.xhtml#l00106">Rounding.h:106</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1support_1_1cpp11_xhtml_a73e352c61baaf9c1178da2d30105b04e"><div class="ttname"><a href="namespacearm__compute_1_1support_1_1cpp11.xhtml#a73e352c61baaf9c1178da2d30105b04e">arm_compute::support::cpp11::lowest</a></div><div class="ttdeci">T lowest()</div><div class="ttdef"><b>Definition:</b> <a href="_toolchain_support_8h_source.xhtml#l00418">ToolchainSupport.h:418</a></div></div>
<div class="ttc" id="namespacearm__compute_xhtml"><div class="ttname"><a href="namespacearm__compute.xhtml">arm_compute</a></div><div class="ttdoc">Copyright (c) 2017-2020 ARM Limited.</div><div class="ttdef"><b>Definition:</b> <a href="00__introduction_8dox_source.xhtml#l00024">00_introduction.dox:24</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1utils_1_1cast_xhtml_a2ea3d1fc01a3a442900249ca182ffa5e"><div class="ttname"><a href="namespacearm__compute_1_1utils_1_1cast.xhtml#a2ea3d1fc01a3a442900249ca182ffa5e">arm_compute::utils::cast::U</a></div><div class="ttdeci">U</div><div class="ttdef"><b>Definition:</b> <a href="_saturate_cast_8h_source.xhtml#l00057">SaturateCast.h:57</a></div></div>
<div class="ttc" id="utils_2misc_2_rounding_8h_xhtml"><div class="ttname"><a href="utils_2misc_2_rounding_8h.xhtml">Rounding.h</a></div></div>
<div class="ttc" id="namespace_gemm_tuner_xhtml_a7aead736a07eaf25623ad7bfa1f0ee2d"><div class="ttname"><a href="namespace_gemm_tuner.xhtml#a7aead736a07eaf25623ad7bfa1f0ee2d">GemmTuner.type</a></div><div class="ttdeci">type</div><div class="ttdef"><b>Definition:</b> <a href="_gemm_tuner_8py_source.xhtml#l00527">GemmTuner.py:527</a></div></div>
<div class="ttc" id="utils_2misc_2traits_8h_xhtml"><div class="ttname"><a href="utils_2misc_2traits_8h.xhtml">Traits.h</a></div></div>
<div class="ttc" id="_utility_8h_xhtml"><div class="ttname"><a href="_utility_8h.xhtml">Utility.h</a></div></div>
<div class="ttc" id="namespacearm__compute_1_1utils_1_1cast_xhtml_aff2fdac1ef048c4a668437d172fa6b1a"><div class="ttname"><a href="namespacearm__compute_1_1utils_1_1cast.xhtml#aff2fdac1ef048c4a668437d172fa6b1a">arm_compute::utils::cast::saturate_cast</a></div><div class="ttdeci">T saturate_cast(U v)</div><div class="ttdef"><b>Definition:</b> <a href="_saturate_cast_8h_source.xhtml#l00043">SaturateCast.h:43</a></div></div>
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