http://git-wip-us.apache.org/repos/asf/arrow-site/blob/4c7c2f1b/docs/cpp/helpers_8h_source.html
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diff --git a/docs/cpp/helpers_8h_source.html b/docs/cpp/helpers_8h_source.html
index 15b23d3..97a45e7 100644
--- a/docs/cpp/helpers_8h_source.html
+++ b/docs/cpp/helpers_8h_source.html
@@ -70,9 +70,9 @@ $(function() {
 <div class="title">helpers.h</div>  </div>
 </div><!--header-->
 <div class="contents">
-<a href="helpers_8h.html">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">// Licensed to the Apache Software 
Foundation (ASF) under one</span></div><div class="line"><a 
name="l00002"></a><span class="lineno">    2</span>&#160;<span 
class="comment">// or more contributor license agreements.  See the NOTICE 
file</span></div><div class="line"><a name="l00003"></a><span class="lineno">   
 3</span>&#160;<span class="comment">// distributed with this work for 
additional information</span></div><div class="line"><a name="l00004"></a><span 
class="lineno">    4</span>&#160;<span class="comment">// regarding copyright 
ownership.  The ASF licenses this file</span></div><div class="line"><a 
name="l00005"></a><span class="lineno">    5</span>&#160;<span 
class="comment">// to you under the Apache License, Version 2.0 
(the</span></div><div class="line"><a name="l00006"></a><span class
 ="lineno">    6</span>&#160;<span class="comment">// &quot;License&quot;); you 
may not use this file except in compliance</span></div><div class="line"><a 
name="l00007"></a><span class="lineno">    7</span>&#160;<span 
class="comment">// with the License.  You may obtain a copy of the License 
at</span></div><div class="line"><a name="l00008"></a><span class="lineno">    
8</span>&#160;<span class="comment">//</span></div><div class="line"><a 
name="l00009"></a><span class="lineno">    9</span>&#160;<span 
class="comment">//   
http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a 
name="l00010"></a><span class="lineno">   10</span>&#160;<span 
class="comment">//</span></div><div class="line"><a name="l00011"></a><span 
class="lineno">   11</span>&#160;<span class="comment">// Unless required by 
applicable law or agreed to in writing,</span></div><div class="line"><a 
name="l00012"></a><span class="lineno">   12</span>&#160;<span 
class="comment">// software distributed u
 nder the License is distributed on an</span></div><div class="line"><a 
name="l00013"></a><span class="lineno">   13</span>&#160;<span 
class="comment">// &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF 
ANY</span></div><div class="line"><a name="l00014"></a><span class="lineno">   
14</span>&#160;<span class="comment">// KIND, either express or implied.  See 
the License for the</span></div><div class="line"><a name="l00015"></a><span 
class="lineno">   15</span>&#160;<span class="comment">// specific language 
governing permissions and limitations</span></div><div class="line"><a 
name="l00016"></a><span class="lineno">   16</span>&#160;<span 
class="comment">// under the License.</span></div><div class="line"><a 
name="l00017"></a><span class="lineno">   17</span>&#160;</div><div 
class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span 
class="preprocessor">#ifndef PYARROW_HELPERS_H</span></div><div class="line"><a 
name="l00019"></a><span class="lineno">  
  19</span>&#160;<span class="preprocessor">#define 
PYARROW_HELPERS_H</span></div><div class="line"><a name="l00020"></a><span 
class="lineno">   20</span>&#160;</div><div class="line"><a 
name="l00021"></a><span class="lineno">   21</span>&#160;<span 
class="preprocessor">#include &quot;<a class="code" 
href="platform_8h.html">arrow/python/platform.h</a>&quot;</span></div><div 
class="line"><a name="l00022"></a><span class="lineno">   
22</span>&#160;</div><div class="line"><a name="l00023"></a><span 
class="lineno">   23</span>&#160;<span class="preprocessor">#include 
&lt;memory&gt;</span></div><div class="line"><a name="l00024"></a><span 
class="lineno">   24</span>&#160;<span class="preprocessor">#include 
&lt;string&gt;</span></div><div class="line"><a name="l00025"></a><span 
class="lineno">   25</span>&#160;<span class="preprocessor">#include 
&lt;utility&gt;</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="type_8h.html">arrow/type.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="macros_8h.html">arrow/util/macros.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="visibility_8h.html">arrow/util/visibility.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="namespacearrow.html">arrow</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 cla
 ss="keyword">class </span>Decimal128;</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>py {</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="keyword">class </span>OwnedRef;</div><div class="line"><a 
name="l00038"></a><span class="lineno">   38</span>&#160;</div><div 
class="line"><a name="l00039"></a><span class="lineno">   
39</span>&#160;ARROW_EXPORT</div><div class="line"><a name="l00040"></a><span 
class="lineno">   40</span>&#160;std::shared_ptr&lt;DataType&gt; <a 
class="code" 
href="namespacearrow_1_1py.html#a8949b2e5469221ad1b1eaf8665b9610b">GetPrimitiveType</a>(<a
 class="code" 
href="structarrow_1_1_type.html#a00a041cb19a3be373da8eec7d4bf1f44">Type::type</a>
 type);</div><div class="line"><a name="
 l00041"></a><span class="lineno">   41</span>&#160;</div><div class="line"><a 
name="l00042"></a><span class="lineno">   42</span>&#160;<span 
class="keyword">namespace </span>internal {</div><div class="line"><a 
name="l00043"></a><span class="lineno">   43</span>&#160;</div><div 
class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;Status 
ImportModule(<span class="keyword">const</span> std::string&amp; module_name, 
OwnedRef* ref);</div><div class="line"><a name="l00045"></a><span 
class="lineno">   45</span>&#160;Status ImportFromModule(<span 
class="keyword">const</span> OwnedRef&amp; module, <span 
class="keyword">const</span> std::string&amp; module_name,</div><div 
class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;       
                 OwnedRef* ref);</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;Status 
PythonDecimalToStr
 ing(PyObject* python_decimal, std::string* out);</div><div class="line"><a 
name="l00049"></a><span class="lineno">   49</span>&#160;</div><div 
class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;Status 
InferDecimalPrecisionAndScale(PyObject* python_decimal,</div><div 
class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;       
                              int32_t* precision = <a class="code" 
href="macros_8h.html#a3ef7eab8cd0e570b6586628cc9d5ccab">NULLPTR</a>,</div><div 
class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;       
                              int32_t* scale = <a class="code" 
href="macros_8h.html#a3ef7eab8cd0e570b6586628cc9d5ccab">NULLPTR</a>);</div><div 
class="line"><a name="l00053"></a><span class="lineno">   
53</span>&#160;</div><div class="line"><a name="l00054"></a><span 
class="lineno">   54</span>&#160;PyObject* DecimalFromString(PyObject* 
decimal_constructor,</div><div class="line"><a name="l00055"></a
 ><span class="lineno">   55</span>&#160;                            <span 
 >class="keyword">const</span> std::string&amp; decimal_string);</div><div 
 >class="line"><a name="l00056"></a><span class="lineno">   
 >56</span>&#160;Status DecimalFromPythonDecimal(PyObject* python_decimal, 
 ><span class="keyword">const</span> DecimalType&amp; arrow_type,</div><div 
 >class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;     
 >                           Decimal128* out);</div><div class="line"><a 
 >name="l00058"></a><span class="lineno">   58</span>&#160;<span 
 >class="keywordtype">bool</span> IsPyInteger(PyObject* obj);</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="comment">// namespace 
 >internal</span></div><div class="line"><a name="l00061"></a><span 
 >class="lineno">   61</span>&#160;}  <span class="comment">// namespace 
 >py</span></div><div class="line
 "><a name="l00062"></a><span class="lineno">   62</span>&#160;}  <span 
class="comment">// namespace arrow</span></div><div class="line"><a 
name="l00063"></a><span class="lineno">   63</span>&#160;</div><div 
class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span 
class="preprocessor">#endif  // PYARROW_HELPERS_H</span></div><div class="ttc" 
id="structarrow_1_1_type_html_a00a041cb19a3be373da8eec7d4bf1f44"><div 
class="ttname"><a 
href="structarrow_1_1_type.html#a00a041cb19a3be373da8eec7d4bf1f44">arrow::Type::type</a></div><div
 class="ttdeci">type</div><div class="ttdef"><b>Definition:</b> 
type.h:45</div></div>
-<div class="ttc" id="macros_8h_html_a3ef7eab8cd0e570b6586628cc9d5ccab"><div 
class="ttname"><a 
href="macros_8h.html#a3ef7eab8cd0e570b6586628cc9d5ccab">NULLPTR</a></div><div 
class="ttdeci">#define NULLPTR</div><div class="ttdef"><b>Definition:</b> 
macros.h:69</div></div>
+<a href="helpers_8h.html">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">// Licensed to the Apache Software 
Foundation (ASF) under one</span></div><div class="line"><a 
name="l00002"></a><span class="lineno">    2</span>&#160;<span 
class="comment">// or more contributor license agreements.  See the NOTICE 
file</span></div><div class="line"><a name="l00003"></a><span class="lineno">   
 3</span>&#160;<span class="comment">// distributed with this work for 
additional information</span></div><div class="line"><a name="l00004"></a><span 
class="lineno">    4</span>&#160;<span class="comment">// regarding copyright 
ownership.  The ASF licenses this file</span></div><div class="line"><a 
name="l00005"></a><span class="lineno">    5</span>&#160;<span 
class="comment">// to you under the Apache License, Version 2.0 
(the</span></div><div class="line"><a name="l00006"></a><span class
 ="lineno">    6</span>&#160;<span class="comment">// &quot;License&quot;); you 
may not use this file except in compliance</span></div><div class="line"><a 
name="l00007"></a><span class="lineno">    7</span>&#160;<span 
class="comment">// with the License.  You may obtain a copy of the License 
at</span></div><div class="line"><a name="l00008"></a><span class="lineno">    
8</span>&#160;<span class="comment">//</span></div><div class="line"><a 
name="l00009"></a><span class="lineno">    9</span>&#160;<span 
class="comment">//   
http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a 
name="l00010"></a><span class="lineno">   10</span>&#160;<span 
class="comment">//</span></div><div class="line"><a name="l00011"></a><span 
class="lineno">   11</span>&#160;<span class="comment">// Unless required by 
applicable law or agreed to in writing,</span></div><div class="line"><a 
name="l00012"></a><span class="lineno">   12</span>&#160;<span 
class="comment">// software distributed u
 nder the License is distributed on an</span></div><div class="line"><a 
name="l00013"></a><span class="lineno">   13</span>&#160;<span 
class="comment">// &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF 
ANY</span></div><div class="line"><a name="l00014"></a><span class="lineno">   
14</span>&#160;<span class="comment">// KIND, either express or implied.  See 
the License for the</span></div><div class="line"><a name="l00015"></a><span 
class="lineno">   15</span>&#160;<span class="comment">// specific language 
governing permissions and limitations</span></div><div class="line"><a 
name="l00016"></a><span class="lineno">   16</span>&#160;<span 
class="comment">// under the License.</span></div><div class="line"><a 
name="l00017"></a><span class="lineno">   17</span>&#160;</div><div 
class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span 
class="preprocessor">#ifndef PYARROW_HELPERS_H</span></div><div class="line"><a 
name="l00019"></a><span class="lineno">  
  19</span>&#160;<span class="preprocessor">#define 
PYARROW_HELPERS_H</span></div><div class="line"><a name="l00020"></a><span 
class="lineno">   20</span>&#160;</div><div class="line"><a 
name="l00021"></a><span class="lineno">   21</span>&#160;<span 
class="preprocessor">#include &quot;<a class="code" 
href="platform_8h.html">arrow/python/platform.h</a>&quot;</span></div><div 
class="line"><a name="l00022"></a><span class="lineno">   
22</span>&#160;</div><div class="line"><a name="l00023"></a><span 
class="lineno">   23</span>&#160;<span class="preprocessor">#include 
&lt;memory&gt;</span></div><div class="line"><a name="l00024"></a><span 
class="lineno">   24</span>&#160;<span class="preprocessor">#include 
&lt;string&gt;</span></div><div class="line"><a name="l00025"></a><span 
class="lineno">   25</span>&#160;<span class="preprocessor">#include 
&lt;utility&gt;</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="type_8h.html">arrow/type.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="macros_8h.html">arrow/util/macros.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="visibility_8h.html">arrow/util/visibility.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="namespacearrow.html">arrow</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 cla
 ss="keyword">class </span>Decimal128;</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>py {</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="keyword">class </span>OwnedRef;</div><div class="line"><a 
name="l00038"></a><span class="lineno">   38</span>&#160;</div><div 
class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span 
class="comment">// \brief Get an arrow DataType instance from Arrow&#39;s 
Type::type enum</span></div><div class="line"><a name="l00040"></a><span 
class="lineno">   40</span>&#160;<span class="comment">// \param[in] type One 
of the values of Arrow&#39;s Type::type enum</span></div><div class="line"><a 
name="l00041"></a><span class="lineno">   41</span>&#160;<sp
 an class="comment">// \return A shared pointer to DataType</span></div><div 
class="line"><a name="l00042"></a><span class="lineno">   
42</span>&#160;ARROW_EXPORT std::shared_ptr&lt;DataType&gt; <a class="code" 
href="namespacearrow_1_1py.html#a8949b2e5469221ad1b1eaf8665b9610b">GetPrimitiveType</a>(<a
 class="code" 
href="structarrow_1_1_type.html#a00a041cb19a3be373da8eec7d4bf1f44">Type::type</a>
 type);</div><div class="line"><a name="l00043"></a><span class="lineno">   
43</span>&#160;</div><div class="line"><a name="l00044"></a><span 
class="lineno">   44</span>&#160;<span class="keyword">namespace 
</span>internal {</div><div class="line"><a name="l00045"></a><span 
class="lineno">   45</span>&#160;</div><div class="line"><a 
name="l00046"></a><span class="lineno">   46</span>&#160;<span 
class="comment">// \brief Import a Python module</span></div><div 
class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span 
class="comment">// \param[in] module_name The name of the m
 odule</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 
  48</span>&#160;<span class="comment">// \param[out] ref The OwnedRef 
containing the module PyObject*</span></div><div class="line"><a 
name="l00049"></a><span class="lineno">   49</span>&#160;Status 
ImportModule(<span class="keyword">const</span> std::string&amp; module_name, 
OwnedRef* ref);</div><div class="line"><a name="l00050"></a><span 
class="lineno">   50</span>&#160;</div><div class="line"><a 
name="l00051"></a><span class="lineno">   51</span>&#160;<span 
class="comment">// \brief Import an object from a Python 
module</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 
  52</span>&#160;<span class="comment">// \param[in] module A Python 
module</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 
  53</span>&#160;<span class="comment">// \param[in] name The name of the 
object to import</span></div><div class="line"><a name="l00054"></a><span 
class="lineno">  
  54</span>&#160;<span class="comment">// \param[out] ref The OwnedRef 
containing the \c name attribute of the Python module \c</span></div><div 
class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span 
class="comment">// module</span></div><div class="line"><a 
name="l00056"></a><span class="lineno">   56</span>&#160;Status 
ImportFromModule(<span class="keyword">const</span> OwnedRef&amp; module, <span 
class="keyword">const</span> std::string&amp; name, OwnedRef* ref);</div><div 
class="line"><a name="l00057"></a><span class="lineno">   
57</span>&#160;</div><div class="line"><a name="l00058"></a><span 
class="lineno">   58</span>&#160;<span class="comment">// \brief 
Import</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 
  59</span>&#160;Status ImportDecimalType(OwnedRef* <a class="code" 
href="namespacearrow.html#aecb3c7b3d0ee16a7761adcfdbe56c113">decimal_type</a>);</div><div
 class="line"><a name="l00060"></a><span class="lineno">   60</span
 >&#160;</div><div class="line"><a name="l00061"></a><span class="lineno">   
 >61</span>&#160;<span class="comment">// \brief Convert a Python Decimal 
 >object to a C++ string</span></div><div class="line"><a 
 >name="l00062"></a><span class="lineno">   62</span>&#160;<span 
 >class="comment">// \param[in] python_decimal A Python decimal.Decimal 
 >instance</span></div><div class="line"><a name="l00063"></a><span 
 >class="lineno">   63</span>&#160;<span class="comment">// \param[out] The 
 >string representation of the Python Decimal instance</span></div><div 
 >class="line"><a name="l00064"></a><span class="lineno">   
 >64</span>&#160;<span class="comment">// \return The status of the 
 >operation</span></div><div class="line"><a name="l00065"></a><span 
 >class="lineno">   65</span>&#160;Status PythonDecimalToString(PyObject* 
 >python_decimal, std::string* out);</div><div class="line"><a 
 >name="l00066"></a><span class="lineno">   66</span>&#160;</div><div 
 >class="line"><a name="l00067"></a><span class="lineno">   
 67</span>&#160;<span class="comment">// \brief Convert a C++ std::string to a 
Python Decimal instance</span></div><div class="line"><a 
name="l00068"></a><span class="lineno">   68</span>&#160;<span 
class="comment">// \param[in] decimal_constructor The decimal type 
object</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 
  69</span>&#160;<span class="comment">// \param[in] decimal_string A decimal 
string</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 
  70</span>&#160;<span class="comment">// \return An instance of 
decimal.Decimal</span></div><div class="line"><a name="l00071"></a><span 
class="lineno">   71</span>&#160;PyObject* DecimalFromString(PyObject* 
decimal_constructor,</div><div class="line"><a name="l00072"></a><span 
class="lineno">   72</span>&#160;                            <span 
class="keyword">const</span> std::string&amp; decimal_string);</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="comment">// \brief Convert a Python decimal to an 
Arrow Decimal128 object</span></div><div class="line"><a 
name="l00075"></a><span class="lineno">   75</span>&#160;<span 
class="comment">// \param[in] python_decimal A Python decimal.Decimal 
instance</span></div><div class="line"><a name="l00076"></a><span 
class="lineno">   76</span>&#160;<span class="comment">// \param[in] arrow_type 
An instance of arrow::DecimalType</span></div><div class="line"><a 
name="l00077"></a><span class="lineno">   77</span>&#160;<span 
class="comment">// \param[out] out A pointer to a Decimal128</span></div><div 
class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span 
class="comment">// \return The status of the operation</span></div><div 
class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;Status 
DecimalFromPythonDecimal(PyObject* python_decimal, <span class="keyword">con
 st</span> DecimalType&amp; arrow_type,</div><div class="line"><a 
name="l00080"></a><span class="lineno">   80</span>&#160;                       
         Decimal128* out);</div><div class="line"><a name="l00081"></a><span 
class="lineno">   81</span>&#160;</div><div class="line"><a 
name="l00082"></a><span class="lineno">   82</span>&#160;<span 
class="comment">// \brief Check whether obj is an integer, independent of 
Python versions.</span></div><div class="line"><a name="l00083"></a><span 
class="lineno">   83</span>&#160;<span class="keywordtype">bool</span> 
IsPyInteger(PyObject* obj);</div><div class="line"><a name="l00084"></a><span 
class="lineno">   84</span>&#160;</div><div class="line"><a 
name="l00085"></a><span class="lineno">   85</span>&#160;<span 
class="comment">// \brief Use pandas missing value semantics to check if a 
value is null</span></div><div class="line"><a name="l00086"></a><span 
class="lineno">   86</span>&#160;<span class="keywordtype">bool</span> 
PandasObjectIsN
 ull(PyObject* obj);</div><div class="line"><a name="l00087"></a><span 
class="lineno">   87</span>&#160;</div><div class="line"><a 
name="l00088"></a><span class="lineno">   88</span>&#160;<span 
class="comment">// \brief Check whether obj is nan</span></div><div 
class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;<span 
class="keywordtype">bool</span> PyFloat_IsNaN(PyObject* obj);</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">// \brief Check whether 
obj is an instance of Decimal</span></div><div class="line"><a 
name="l00092"></a><span class="lineno">   92</span>&#160;<span 
class="keywordtype">bool</span> PyDecimal_Check(PyObject* obj);</div><div 
class="line"><a name="l00093"></a><span class="lineno">   
93</span>&#160;</div><div class="line"><a name="l00094"></a><span 
class="lineno">   94</span>&#160;<span class="comment">// 
 \brief Check whether obj is nan. This function will abort the program if the 
argument</span></div><div class="line"><a name="l00095"></a><span 
class="lineno">   95</span>&#160;<span class="comment">// is not a Decimal 
instance</span></div><div class="line"><a name="l00096"></a><span 
class="lineno">   96</span>&#160;<span class="keywordtype">bool</span> 
PyDecimal_ISNAN(PyObject* obj);</div><div class="line"><a 
name="l00097"></a><span class="lineno">   97</span>&#160;</div><div 
class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;<span 
class="comment">// \brief Convert a Python integer into an unsigned 64-bit 
integer</span></div><div class="line"><a name="l00099"></a><span 
class="lineno">   99</span>&#160;<span class="comment">// \param[in] obj A 
Python integer</span></div><div class="line"><a name="l00100"></a><span 
class="lineno">  100</span>&#160;<span class="comment">// \param[out] out A 
pointer to a C uint64_t to hold the result of the conversion</span></div><
 div class="line"><a name="l00101"></a><span class="lineno">  
101</span>&#160;<span class="comment">// \return The status of the 
operation</span></div><div class="line"><a name="l00102"></a><span 
class="lineno">  102</span>&#160;Status UInt64FromPythonInt(PyObject* obj, 
uint64_t* out);</div><div class="line"><a name="l00103"></a><span 
class="lineno">  103</span>&#160;</div><div class="line"><a 
name="l00104"></a><span class="lineno">  104</span>&#160;<span 
class="comment">// \brief Helper class to track and update the precision and 
scale of a decimal</span></div><div class="line"><a name="l00105"></a><span 
class="lineno">  105</span>&#160;<span class="keyword">class 
</span>DecimalMetadata {</div><div class="line"><a name="l00106"></a><span 
class="lineno">  106</span>&#160; <span 
class="keyword">public</span>:</div><div class="line"><a 
name="l00107"></a><span class="lineno">  107</span>&#160;  
DecimalMetadata();</div><div class="line"><a name="l00108"></a><span 
class="lineno">  108</sp
 an>&#160;  DecimalMetadata(int32_t precision, int32_t scale);</div><div 
class="line"><a name="l00109"></a><span class="lineno">  
109</span>&#160;</div><div class="line"><a name="l00110"></a><span 
class="lineno">  110</span>&#160;  <span class="comment">// \brief Adjust the 
precision and scale of a decimal type given a new precision and 
a</span></div><div class="line"><a name="l00111"></a><span class="lineno">  
111</span>&#160;  <span class="comment">// new scale \param[in] 
suggested_precision A candidate precision \param[in]</span></div><div 
class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;  
<span class="comment">// suggested_scale A candidate scale \return The status 
of the operation</span></div><div class="line"><a name="l00113"></a><span 
class="lineno">  113</span>&#160;  Status Update(int32_t suggested_precision, 
int32_t suggested_scale);</div><div class="line"><a name="l00114"></a><span 
class="lineno">  114</span>&#160;</div><div class="line"><a name="l0
 0115"></a><span class="lineno">  115</span>&#160;  <span class="comment">// 
\brief A convenient interface for updating the precision and scale based on a 
Python</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 
 116</span>&#160;  <span class="comment">// Decimal object \param object A 
Python Decimal object \return The status of the</span></div><div 
class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;  
<span class="comment">// operation</span></div><div class="line"><a 
name="l00118"></a><span class="lineno">  118</span>&#160;  Status 
Update(PyObject* <span class="keywordtype">object</span>);</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;  int32_t precision()<span class="keyword"> 
const </span>{ <span class="keywordflow">return</span> precision_; }</div><div 
class="line"><a name="l00121"></a><span class="lineno">  121</spa
 n>&#160;  int32_t scale()<span class="keyword"> const </span>{ <span 
class="keywordflow">return</span> scale_; }</div><div class="line"><a 
name="l00122"></a><span class="lineno">  122</span>&#160;</div><div 
class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160; <span 
class="keyword">private</span>:</div><div class="line"><a 
name="l00124"></a><span class="lineno">  124</span>&#160;  int32_t 
precision_;</div><div class="line"><a name="l00125"></a><span class="lineno">  
125</span>&#160;  int32_t scale_;</div><div class="line"><a 
name="l00126"></a><span class="lineno">  126</span>&#160;};</div><div 
class="line"><a name="l00127"></a><span class="lineno">  
127</span>&#160;</div><div class="line"><a name="l00128"></a><span 
class="lineno">  128</span>&#160;}  <span class="comment">// namespace 
internal</span></div><div class="line"><a name="l00129"></a><span 
class="lineno">  129</span>&#160;}  <span class="comment">// namespace 
py</span></div><div class="line"><a name="l0
 0130"></a><span class="lineno">  130</span>&#160;}  <span class="comment">// 
namespace arrow</span></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="preprocessor">#endif  // PYARROW_HELPERS_H</span></div><div class="ttc" 
id="structarrow_1_1_type_html_a00a041cb19a3be373da8eec7d4bf1f44"><div 
class="ttname"><a 
href="structarrow_1_1_type.html#a00a041cb19a3be373da8eec7d4bf1f44">arrow::Type::type</a></div><div
 class="ttdeci">type</div><div class="ttdef"><b>Definition:</b> 
type.h:45</div></div>
 <div class="ttc" id="platform_8h_html"><div class="ttname"><a 
href="platform_8h.html">platform.h</a></div></div>
+<div class="ttc" 
id="namespacearrow_html_aecb3c7b3d0ee16a7761adcfdbe56c113"><div 
class="ttname"><a 
href="namespacearrow.html#aecb3c7b3d0ee16a7761adcfdbe56c113">arrow::decimal_type</a></div><div
 class="ttdeci">std::shared_ptr&lt; DataType &gt; decimal_type(int precision, 
int scale)</div></div>
 <div class="ttc" 
id="namespacearrow_1_1py_html_a8949b2e5469221ad1b1eaf8665b9610b"><div 
class="ttname"><a 
href="namespacearrow_1_1py.html#a8949b2e5469221ad1b1eaf8665b9610b">arrow::py::GetPrimitiveType</a></div><div
 class="ttdeci">std::shared_ptr&lt; DataType &gt; GetPrimitiveType(Type::type 
type)</div></div>
 <div class="ttc" id="macros_8h_html"><div class="ttname"><a 
href="macros_8h.html">macros.h</a></div></div>
 <div class="ttc" id="visibility_8h_html"><div class="ttname"><a 
href="visibility_8h.html">visibility.h</a></div></div>

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