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| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a5e34c5435e557d0bf666bd7311211405.html#a5e34c5435e557d0bf666bd7311211405">operator<<</a></td></tr> |
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| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_ac7c006e2345a76859c4802db7d130e0e.html#ac7c006e2345a76859c4802db7d130e0e">operator[]</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_aa6fd72df1ce9f80e61012784c598456e.html#aa6fd72df1ce9f80e61012784c598456e">operator[]</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a35303ad045a06c2a79dc28ac29652e86.html#a35303ad045a06c2a79dc28ac29652e86">parse</a></td></tr> |
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| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a5212588544f6d2266384c3be9bfda0c5.html#a5212588544f6d2266384c3be9bfda0c5">push_back</a></td></tr> |
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| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a3ec8e17be8732fe436e9d6733f52b7a3.html#a3ec8e17be8732fe436e9d6733f52b7a3">reference</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_ad101425649dbc5c2e851fdb52c31741d.html#ad101425649dbc5c2e851fdb52c31741d">rend</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a0a60ef55808edb545f4f46e49656d035.html#a0a60ef55808edb545f4f46e49656d035">rend</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a2f1f83aa187a56dc5ec7a7027065ac8a.html#a2f1f83aa187a56dc5ec7a7027065ac8a">reverse_iterator</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a01833b332b68d9af1f7cd7a816c39e49.html#a01833b332b68d9af1f7cd7a816c39e49">size</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a1579a8f72a230358d6cd1a6e8a62859b.html#a1579a8f72a230358d6cd1a6e8a62859b">size_type</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_ab63e618bbb0371042b1bec17f5891f42.html#ab63e618bbb0371042b1bec17f5891f42">string_t</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_af77614992e38b355b9213940051cc582.html#af77614992e38b355b9213940051cc582">swap</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a8209621de6184d9eabe136b7c8f61935.html#a8209621de6184d9eabe136b7c8f61935">swap</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a38ee0f09a318d003add75e0787040794.html#a38ee0f09a318d003add75e0787040794">swap</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a86089c703a2e563b9f760c2f8408efa7.html#a86089c703a2e563b9f760c2f8408efa7">swap</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_ad09218e192a80ffa8df531941afdab60.html#ad09218e192a80ffa8df531941afdab60">type</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a0a2cbbd95862a623e7dc5c37e67dead0.html#a0a2cbbd95862a623e7dc5c37e67dead0">value</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_af071057ebab57744f5767eb369e99d42.html#af071057ebab57744f5767eb369e99d42">value</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a231b02148577b69a154b2ce2c87a5522.html#a231b02148577b69a154b2ce2c87a5522">value_t</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_ac8d45b57874b4a6e9c07f7d3b5daa1f9.html#ac8d45b57874b4a6e9c07f7d3b5daa1f9">value_type</a></td></tr> |
| <tr><td class="navtab"><a class="qindex" href="classnlohmann_1_1basic__json_a947b5b2a832e490858dbdddfe7085831.html#a947b5b2a832e490858dbdddfe7085831">~basic_json</a></td></tr> |
| </table> |
| </div> |
| </td> |
| <td valign="top" class="mempage"> |
| <a class="anchor" id="a245b34ee6341bed2e3a611e223c53c48"></a> |
| <div class="memitem"> |
| <div class="memproto"> |
| <div class="memtemplate"> |
| template<template< typename U, typename V, typename...Args > class ObjectType = std::map, template< typename U, typename...Args > class ArrayType = std::vector, class StringType = std::string, class BooleanType = bool, class NumberIntegerType = int64_t, class NumberUnsignedType = uint64_t, class NumberFloatType = double, template< typename U > class AllocatorType = std::allocator> </div> |
| <table class="mlabels"> |
| <tr> |
| <td class="mlabels-left"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">bool <a class="el" href="classnlohmann_1_1basic__json.html">nlohmann::basic_json</a>::is_number_integer </td> |
| <td>(</td> |
| <td class="paramname"></td><td>)</td> |
| <td> const</td> |
| </tr> |
| </table> |
| </td> |
| <td class="mlabels-right"> |
| <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">noexcept</span></span> </td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| <p>This function returns true iff the JSON value is an integer or unsigned integer number. This excludes floating-point values.</p> |
| <dl class="section return"><dt>Returns</dt><dd><code>true</code> if type is an integer or unsigned integer number, <code>false</code> otherwise.</dd></dl> |
| <dl class="section user"><dt>Complexity</dt><dd>Constant.</dd></dl> |
| <dl class="section user"><dt>Example</dt><dd>The following code exemplifies <code>is_number_integer()</code> for all JSON types. <div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#include <json.hpp></span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="keyword">using</span> <a class="code" href="namespacenlohmann_a2bfd99e845a2e5cd90aeaf1b1431f474.html#a2bfd99e845a2e5cd90aeaf1b1431f474">json</a> = <a class="code" href="namespacenlohmann_a2bfd99e845a2e5cd90aeaf1b1431f474.html#a2bfd99e845a2e5cd90aeaf1b1431f474">nlohmann::json</a>;</div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> </div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="keywordtype">int</span> main()</div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> {</div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>  <span class="comment">// create JSON values</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>  <a class="code" href="namespacenlohmann_a2bfd99e845a2e5cd90aeaf1b1431f474.html#a2bfd99e845a2e5cd90aeaf1b1431f474">json</a> j_null;</div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>  <a class="code" href="namespacenlohmann_a2bfd99e845a2e5cd90aeaf1b1431f474.html#a2bfd99e845a2e5cd90aeaf1b1431f474">json</a> j_boolean = <span class="keyword">true</span>;</div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>  <a class="code" href="namespacenlohmann_a2bfd99e845a2e5cd90aeaf1b1431f474.html#a2bfd99e845a2e5cd90aeaf1b1431f474">json</a> j_number_integer = 17;</div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>  <a class="code" href="namespacenlohmann_a2bfd99e845a2e5cd90aeaf1b1431f474.html#a2bfd99e845a2e5cd90aeaf1b1431f474">json</a> j_number_unsigned_integer = 12345678987654321u;</div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>  <a class="code" href="namespacenlohmann_a2bfd99e845a2e5cd90aeaf1b1431f474.html#a2bfd99e845a2e5cd90aeaf1b1431f474">json</a> j_number_float = 23.42;</div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>  <a class="code" href="namespacenlohmann_a2bfd99e845a2e5cd90aeaf1b1431f474.html#a2bfd99e845a2e5cd90aeaf1b1431f474">json</a> j_object = {{<span class="stringliteral">"one"</span>, 1}, {<span class="stringliteral">"two"</span>, 2}};</div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  <a class="code" href="namespacenlohmann_a2bfd99e845a2e5cd90aeaf1b1431f474.html#a2bfd99e845a2e5cd90aeaf1b1431f474">json</a> j_array = {1, 2, 4, 8, 16};</div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  <a class="code" href="namespacenlohmann_a2bfd99e845a2e5cd90aeaf1b1431f474.html#a2bfd99e845a2e5cd90aeaf1b1431f474">json</a> j_string = <span class="stringliteral">"Hello, world"</span>;</div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  <span class="comment">// call is_number_integer()</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  std::cout << std::boolalpha;</div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  std::cout << j_null.is_number_integer() << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  std::cout << j_boolean.is_number_integer() << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  std::cout << j_number_integer.is_number_integer() << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  std::cout << j_number_unsigned_integer.is_number_integer() << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  std::cout << j_number_float.is_number_integer() << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  std::cout << j_object.is_number_integer() << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  std::cout << j_array.is_number_integer() << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  std::cout << j_string.is_number_integer() << <span class="charliteral">'\n'</span>;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> }</div><div class="ttc" id="namespacenlohmann_a2bfd99e845a2e5cd90aeaf1b1431f474_html_a2bfd99e845a2e5cd90aeaf1b1431f474"><div class="ttname"><a href="namespacenlohmann_a2bfd99e845a2e5cd90aeaf1b1431f474.html#a2bfd99e845a2e5cd90aeaf1b1431f474">nlohmann::json</a></div><div class="ttdeci">basic_json<> json</div><div class="ttdoc">default JSON class </div><div class="ttdef"><b>Definition:</b> <a href="json_8hpp_source.html#l08622">json.hpp:8622</a></div></div> |
| </div><!-- fragment --> Output (play with this example <a target="_blank" href="http://melpon.org/wandbox/permlink/jZwJVIXretvfg4kS"><b>online</b></a>): <pre class="fragment">false |
| false |
| true |
| true |
| false |
| false |
| false |
| false |
| </pre> The example code above can be translated with<pre class="fragment">g++ -std=c++11 -Isrc doc/examples/is_number_integer.cpp -o is_number_integer </pre></dd></dl> |
| <dl class="section see"><dt>See also</dt><dd><a class="el" href="classnlohmann_1_1basic__json_a791afb7d6974c52b134d66aa1f249164.html#a791afb7d6974c52b134d66aa1f249164">is_number()</a> – check if value is a number </dd> |
| <dd> |
| <a class="el" href="classnlohmann_1_1basic__json_ab7d704826813d13731fbcaf220160826.html#ab7d704826813d13731fbcaf220160826">is_number_unsigned()</a> – check if value is an unsigned integer number </dd> |
| <dd> |
| <a class="el" href="classnlohmann_1_1basic__json_a5d288e4e8828c2ef03a4f9958ce3d175.html#a5d288e4e8828c2ef03a4f9958ce3d175">is_number_float()</a> – check if value is a floating-point number</dd></dl> |
| <dl class="section since"><dt>Since</dt><dd>version 1.0.0 </dd></dl> |
| |
| <p>Definition at line <a class="el" href="json_8hpp_source.html#l02241">2241</a> of file <a class="el" href="json_8hpp_source.html">json.hpp</a>.</p> |
| |
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| </a> 1.8.11 |
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