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  27.       <h1 class="title">system/ctypes</h1>
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    54. 

  54.   <li>
    55. 

  55.   <details open>
    56. 

  56.     <summary><a class="reference reference-toplevel" href="#7" id="57">Types</a></summary>
    57. 

  57.     <ul class="simple simple-toc-section">
    58. 

  58.       <li><a class="reference" href="#BiggestFloat" title="BiggestFloat = float64">BiggestFloat</a></li>
    59. 

  59. <li><a class="reference" href="#BiggestInt" title="BiggestInt = int64">BiggestInt</a></li>
    60. 

  60. <li><a class="reference" href="#BiggestUInt" title="BiggestUInt = uint64">BiggestUInt</a></li>
    61. 

  61. <li><a class="reference" href="#ByteAddress" title="ByteAddress {.deprecated: &quot;use `uint`&quot;.} = int">ByteAddress</a></li>
    62. 

  62. <li><a class="reference" href="#cchar" title="cchar {.importc: &quot;char&quot;, nodecl.} = char">cchar</a></li>
    63. 

  63. <li><a class="reference" href="#cdouble" title="cdouble {.importc: &quot;double&quot;, nodecl.} = float64">cdouble</a></li>
    64. 

  64. <li><a class="reference" href="#cfloat" title="cfloat {.importc: &quot;float&quot;, nodecl.} = float32">cfloat</a></li>
    65. 

  65. <li><a class="reference" href="#cint" title="cint {.importc: &quot;int&quot;, nodecl.} = int32">cint</a></li>
    66. 

  66. <li><a class="reference" href="#clong" title="clong {.importc: &quot;long&quot;, nodecl.} = int">clong</a></li>
    67. 

  67. <li><a class="reference" href="#clongdouble" title="clongdouble {.importc: &quot;long double&quot;, nodecl.} = BiggestFloat">clongdouble</a></li>
    68. 

  68. <li><a class="reference" href="#clonglong" title="clonglong {.importc: &quot;long long&quot;, nodecl.} = int64">clonglong</a></li>
    69. 

  69. <li><a class="reference" href="#cschar" title="cschar {.importc: &quot;signed char&quot;, nodecl.} = int8">cschar</a></li>
    70. 

  70. <li><a class="reference" href="#cshort" title="cshort {.importc: &quot;short&quot;, nodecl.} = int16">cshort</a></li>
    71. 

  71. <li><a class="reference" href="#csize_t" title="csize_t {.importc: &quot;size_t&quot;, nodecl.} = uint">csize_t</a></li>
    72. 

  72. <li><a class="reference" href="#cstringArray" title="cstringArray {.importc: &quot;char**&quot;, nodecl.} = ptr UncheckedArray[cstring]">cstringArray</a></li>
    73. 

  73. <li><a class="reference" href="#cuchar" title="cuchar {.importc: &quot;unsigned char&quot;, nodecl,
    74. 

  74.          deprecated: &quot;use `char` or `uint8` instead&quot;.} = char">cuchar</a></li>
    75. 

  75. <li><a class="reference" href="#cuint" title="cuint {.importc: &quot;unsigned int&quot;, nodecl.} = uint32">cuint</a></li>
    76. 

  76. <li><a class="reference" href="#culong" title="culong {.importc: &quot;unsigned long&quot;, nodecl.} = uint">culong</a></li>
    77. 

  77. <li><a class="reference" href="#culonglong" title="culonglong {.importc: &quot;unsigned long long&quot;, nodecl.} = uint64">culonglong</a></li>
    78. 

  78. <li><a class="reference" href="#cushort" title="cushort {.importc: &quot;unsigned short&quot;, nodecl.} = uint16">cushort</a></li>
    79. 

  79. 

  80.     </ul>
    81. 

  81.   </details>
    82. 

  82. </li>
    83. 

  83. 

  84. </ul>
    85. 

  85. 

  86.   </div>
    87. 

  87.   <div class="nine columns" id="content">
    88. 

  88.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L1" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    89. 

  89. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L1" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    90. 

  90. 

  91.     <div id="tocRoot"></div>
    92. 

  92.     
    93. 

  93.     <p class="module-desc">Some type definitions for compatibility between different backends and platforms.</p>
    94. 

  94.     <div class="section" id="7">
    95. 

  95.   <h1><a class="toc-backref" href="#7">Types</a></h1>
    96. 

  96.   <dl class="item">
    97. 

  97.     <div id="BiggestFloat">
    98. 

  98.   <dt><pre><a href="ctypes.html#BiggestFloat"><span class="Identifier">BiggestFloat</span></a> <span class="Other">=</span> <a href="system.html#float64"><span class="Identifier">float64</span></a></pre></dt>
    99. 

  99.   <dd>
    100. 

  100.     
    101. 

  101.     is an alias for the biggest floating point type the Nim compiler supports. Currently this is <tt class="docutils literal"><span class="pre"><span class="Identifier">float64</span></span></tt>, but it is platform-dependent in general.
    102. 

  102.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L10" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    103. 

  103. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L10" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    104. 

  104. 

  105.   </dd>
    106. 

  106. </div>
    107. 

  107. <div id="BiggestInt">
    108. 

  108.   <dt><pre><a href="ctypes.html#BiggestInt"><span class="Identifier">BiggestInt</span></a> <span class="Other">=</span> <a href="system.html#int64"><span class="Identifier">int64</span></a></pre></dt>
    109. 

  109.   <dd>
    110. 

  110.     
    111. 

  111.     is an alias for the biggest signed integer type the Nim compiler supports. Currently this is <tt class="docutils literal"><span class="pre"><span class="Identifier">int64</span></span></tt>, but it is platform-dependent in general.
    112. 

  112.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L5" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    113. 

  113. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L5" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    114. 

  114. 

  115.   </dd>
    116. 

  116. </div>
    117. 

  117. <div id="BiggestUInt">
    118. 

  118.   <dt><pre><a href="ctypes.html#BiggestUInt"><span class="Identifier">BiggestUInt</span></a> <span class="Other">=</span> <a href="system.html#uint64"><span class="Identifier">uint64</span></a></pre></dt>
    119. 

  119.   <dd>
    120. 

  120.     
    121. 

  121.     is an alias for the biggest unsigned integer type the Nim compiler supports. Currently this is <tt class="docutils literal"><span class="pre"><span class="Identifier">uint64</span></span></tt>, but it is platform-dependent in general.
    122. 

  122.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L15" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    123. 

  123. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L15" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    124. 

  124. 

  125.   </dd>
    126. 

  126. </div>
    127. 

  127. <div id="ByteAddress">
    128. 

  128.   <dt><pre><a href="ctypes.html#ByteAddress"><span class="Identifier">ByteAddress</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">deprecated</span><span class="Other">:</span> <span class="StringLit">&quot;use `uint`&quot;</span></span>.} <span class="Other">=</span> <a href="system.html#int"><span class="Identifier">int</span></a></pre></dt>
    129. 

  129.   <dd>
    130. 

  130.     <div class="deprecation-message">
    131. 

  131.   <b>Deprecated:</b> use `uint`
    132. 

  132. </div>
    133. 

  133. 

  134.     is the signed integer type that should be used for converting pointers to integer addresses for readability.
    135. 

  135.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L64" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    136. 

  136. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L64" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    137. 

  137. 

  138.   </dd>
    139. 

  139. </div>
    140. 

  140. <div id="cchar">
    141. 

  141.   <dt><pre><a href="ctypes.html#cchar"><span class="Identifier">cchar</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;char&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#char"><span class="Identifier">char</span></a></pre></dt>
    142. 

  142.   <dd>
    143. 

  143.     
    144. 

  144.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">char</span></span></tt> in <em>C</em>.
    145. 

  145.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L34" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    146. 

  146. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L34" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    147. 

  147. 

  148.   </dd>
    149. 

  149. </div>
    150. 

  150. <div id="cdouble">
    151. 

  151.   <dt><pre><a href="ctypes.html#cdouble"><span class="Identifier">cdouble</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;double&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#float64"><span class="Identifier">float64</span></a></pre></dt>
    152. 

  152.   <dd>
    153. 

  153.     
    154. 

  154.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">double</span></span></tt> in <em>C</em>.
    155. 

  155.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L48" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    156. 

  156. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L48" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    157. 

  157. 

  158.   </dd>
    159. 

  159. </div>
    160. 

  160. <div id="cfloat">
    161. 

  161.   <dt><pre><a href="ctypes.html#cfloat"><span class="Identifier">cfloat</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;float&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#float32"><span class="Identifier">float32</span></a></pre></dt>
    162. 

  162.   <dd>
    163. 

  163.     
    164. 

  164.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">float</span></span></tt> in <em>C</em>.
    165. 

  165.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L46" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    166. 

  166. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L46" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    167. 

  167. 

  168.   </dd>
    169. 

  169. </div>
    170. 

  170. <div id="cint">
    171. 

  171.   <dt><pre><a href="ctypes.html#cint"><span class="Identifier">cint</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;int&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#int32"><span class="Identifier">int32</span></a></pre></dt>
    172. 

  172.   <dd>
    173. 

  173.     
    174. 

  174.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">int</span></span></tt> in <em>C</em>.
    175. 

  175.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L40" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    176. 

  176. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L40" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    177. 

  177. 

  178.   </dd>
    179. 

  179. </div>
    180. 

  180. <div id="clong">
    181. 

  181.   <dt><pre><a href="ctypes.html#clong"><span class="Identifier">clong</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;long&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#int"><span class="Identifier">int</span></a></pre></dt>
    182. 

  182.   <dd>
    183. 

  183.     
    184. 

  184.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">long</span></span></tt> in <em>C</em>.
    185. 

  185.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L28" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    186. 

  186. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L28" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    187. 

  187. 

  188.   </dd>
    189. 

  189. </div>
    190. 

  190. <div id="clongdouble">
    191. 

  191.   <dt><pre><a href="ctypes.html#clongdouble"><span class="Identifier">clongdouble</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;long double&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="ctypes.html#BiggestFloat"><span class="Identifier">BiggestFloat</span></a></pre></dt>
    192. 

  192.   <dd>
    193. 

  193.     
    194. 

  194.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">long</span> <span class="Identifier">double</span></span></tt> in <em>C</em>. This C type is not supported by Nim's code generator.
    195. 

  195.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L50" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    196. 

  196. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L50" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    197. 

  197. 

  198.   </dd>
    199. 

  199. </div>
    200. 

  200. <div id="clonglong">
    201. 

  201.   <dt><pre><a href="ctypes.html#clonglong"><span class="Identifier">clonglong</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;long long&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#int64"><span class="Identifier">int64</span></a></pre></dt>
    202. 

  202.   <dd>
    203. 

  203.     
    204. 

  204.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">long</span> <span class="Identifier">long</span></span></tt> in <em>C</em>.
    205. 

  205.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L44" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    206. 

  206. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L44" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    207. 

  207. 

  208.   </dd>
    209. 

  209. </div>
    210. 

  210. <div id="cschar">
    211. 

  211.   <dt><pre><a href="ctypes.html#cschar"><span class="Identifier">cschar</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;signed char&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#int8"><span class="Identifier">int8</span></a></pre></dt>
    212. 

  212.   <dd>
    213. 

  213.     
    214. 

  214.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">signed</span> <span class="Identifier">char</span></span></tt> in <em>C</em>.
    215. 

  215.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L36" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    216. 

  216. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L36" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    217. 

  217. 

  218.   </dd>
    219. 

  219. </div>
    220. 

  220. <div id="cshort">
    221. 

  221.   <dt><pre><a href="ctypes.html#cshort"><span class="Identifier">cshort</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;short&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#int16"><span class="Identifier">int16</span></a></pre></dt>
    222. 

  222.   <dd>
    223. 

  223.     
    224. 

  224.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">short</span></span></tt> in <em>C</em>.
    225. 

  225.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L38" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    226. 

  226. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L38" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    227. 

  227. 

  228.   </dd>
    229. 

  229. </div>
    230. 

  230. <div id="csize_t">
    231. 

  231.   <dt><pre><a href="ctypes.html#csize_t"><span class="Identifier">csize_t</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;size_t&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#uint"><span class="Identifier">uint</span></a></pre></dt>
    232. 

  232.   <dd>
    233. 

  233.     
    234. 

  234.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">size_t</span></span></tt> in <em>C</em>.
    235. 

  235.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L42" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    236. 

  236. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L42" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    237. 

  237. 

  238.   </dd>
    239. 

  239. </div>
    240. 

  240. <div id="cstringArray">
    241. 

  241.   <dt><pre><a href="ctypes.html#cstringArray"><span class="Identifier">cstringArray</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;char**&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <span class="Keyword">ptr</span> <a href="system.html#UncheckedArray"><span class="Identifier">UncheckedArray</span></a><span class="Other">[</span><a href="system.html#cstring"><span class="Identifier">cstring</span></a><span class="Other">]</span></pre></dt>
    242. 

  242.   <dd>
    243. 

  243.     
    244. 

  244.     This is binary compatible to the type <tt class="docutils literal"><span class="pre"><span class="Identifier">char</span><span class="Operator">**</span></span></tt> in <em>C</em>. The array's high value is large enough to disable bounds checking in practice. Use <a class="reference external" href="#cstringArrayToSeq,cstringArray,Natural">cstringArrayToSeq proc</a> to convert it into a <tt class="docutils literal"><span class="pre"><span class="Identifier">seq</span><span class="Punctuation">[</span><span class="Identifier">string</span><span class="Punctuation">]</span></span></tt>.
    245. 

  245.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L68" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    246. 

  246. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L68" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    247. 

  247. 

  248.   </dd>
    249. 

  249. </div>
    250. 

  250. <div id="cuchar">
    251. 

  251.   <dt><pre><a href="ctypes.html#cuchar"><span class="Identifier">cuchar</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;unsigned char&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span><span class="Other">,</span>
    252. 

  252.          <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">deprecated</span><span class="Other">:</span> <span class="StringLit">&quot;use `char` or `uint8` instead&quot;</span></span>.} <span class="Other">=</span> <a href="system.html#char"><span class="Identifier">char</span></a></pre></dt>
    253. 

  253.   <dd>
    254. 

  254.     <div class="deprecation-message">
    255. 

  255.   <b>Deprecated:</b> use `char` or `uint8` instead
    256. 

  256. </div>
    257. 

  257. 

  258.     Deprecated: Use <tt class="docutils literal"><span class="pre"><span class="Identifier">uint8</span></span></tt> instead.
    259. 

  259.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L54" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    260. 

  260. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L54" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    261. 

  261. 

  262.   </dd>
    263. 

  263. </div>
    264. 

  264. <div id="cuint">
    265. 

  265.   <dt><pre><a href="ctypes.html#cuint"><span class="Identifier">cuint</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;unsigned int&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#uint32"><span class="Identifier">uint32</span></a></pre></dt>
    266. 

  266.   <dd>
    267. 

  267.     
    268. 

  268.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">unsigned</span> <span class="Identifier">int</span></span></tt> in <em>C</em>.
    269. 

  269.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L58" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    270. 

  270. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L58" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    271. 

  271. 

  272.   </dd>
    273. 

  273. </div>
    274. 

  274. <div id="culong">
    275. 

  275.   <dt><pre><a href="ctypes.html#culong"><span class="Identifier">culong</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;unsigned long&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#uint"><span class="Identifier">uint</span></a></pre></dt>
    276. 

  276.   <dd>
    277. 

  277.     
    278. 

  278.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">unsigned</span> <span class="Identifier">long</span></span></tt> in <em>C</em>.
    279. 

  279.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L30" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    280. 

  280. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L30" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    281. 

  281. 

  282.   </dd>
    283. 

  283. </div>
    284. 

  284. <div id="culonglong">
    285. 

  285.   <dt><pre><a href="ctypes.html#culonglong"><span class="Identifier">culonglong</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;unsigned long long&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#uint64"><span class="Identifier">uint64</span></a></pre></dt>
    286. 

  286.   <dd>
    287. 

  287.     
    288. 

  288.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">unsigned</span> <span class="Identifier">long</span> <span class="Identifier">long</span></span></tt> in <em>C</em>.
    289. 

  289.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L60" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    290. 

  290. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L60" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    291. 

  291. 

  292.   </dd>
    293. 

  293. </div>
    294. 

  294. <div id="cushort">
    295. 

  295.   <dt><pre><a href="ctypes.html#cushort"><span class="Identifier">cushort</span></a> {.<span class="Identifier">importc</span><span class="Other">:</span> <span class="StringLit">&quot;unsigned short&quot;</span><span class="Other">,</span> <span class="Identifier">nodecl</span>.} <span class="Other">=</span> <a href="system.html#uint16"><span class="Identifier">uint16</span></a></pre></dt>
    296. 

  296.   <dd>
    297. 

  297.     
    298. 

  298.     This is the same as the type <tt class="docutils literal"><span class="pre"><span class="Identifier">unsigned</span> <span class="Identifier">short</span></span></tt> in <em>C</em>.
    299. 

  299.     <a href="https://github.com/nim-lang/Nim/tree/devel/lib/system/ctypes.nim#L56" class="link-seesrc" target="_blank">Source</a>&nbsp;&nbsp;
    300. 

  300. <a href="https://github.com/nim-lang/Nim/edit/devel/lib/system/ctypes.nim#L56" class="link-seesrc" target="_blank" >Edit</a>&nbsp;&nbsp;
    301. 

  301. 

  302.   </dd>
    303. 

  303. </div>
    304. 

  304. 

  305.   </dl>
    306. 

  306. </div>
    307. 

  307. 

  308.   </div>
    309. 

  309. </div>
    310. 

  310. 

  311.       <div class="twelve-columns footer">
    312. 

  312.         <span class="nim-sprite"></span>
    313. 

  313.         <br>
    314. 

  314.         <small style="color: var(--hint);">Made with Nim. Generated: 2024-12-25 13:28:14 UTC</small>
    315. 

  315.       </div>
    316. 

  316.     </div>
    317. 

  317.   </div>
    318. 

  318.       <script defer data-domain="nim-lang.org" src="https://plausible.io/js/plausible.js"></script>
    319. 

  319.     
    320. 

  320. </body>
    321. 

  321. </html>
    322. 

  322.