docs/api-2.1/ucx_8h_source.html@c065d196a2c8
docs/api-2.1/ucx_8h_source.html
Fri, 20 Dec 2024 13:13:38 +0100
- author
- Mike Becker <universe@uap-core.de>
- date
- Fri, 20 Dec 2024 13:13:38 +0100
- changeset 1029
- c065d196a2c8
- parent 390
- d345541018fa
- permissions
- -rw-r--r--
add advice to set the size of a buffer initialized with existing data
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.13"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>ucx: /home/mike/workspace/c/ucx/src/ucx/ucx.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectlogo"><img alt="Logo" src="uaplogo.png"/></td> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">ucx </div> <div id="projectbrief">UAP Common Extensions</div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.13 --> <script type="text/javascript"> var searchBox = new SearchBox("searchBox", "search",false,'Search'); </script> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> $(function() { initMenu('',true,false,'search.php','Search'); $(document).ready(function() { init_search(); }); }); </script> <div id="main-nav"></div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> </div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_69f4ea29401808fe6229564976cde3ce.html">ucx</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"> <div class="title">ucx.h</div> </div> </div><!--header--> <div class="contents"> <a href="ucx_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> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved.</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * modification, are permitted provided that the following conditions are met:</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * notice, this list of conditions and the following disclaimer.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * notice, this list of conditions and the following disclaimer in the</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * documentation and/or other materials provided with the distribution.</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)</span></div><div class="line"><a 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class="lineno"> 41</span> </div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="ucx_8h.html#a9ac10d6353e23d4615a87fc737c65eb0"> 43</a></span> <span class="preprocessor">#define UCX_VERSION_MINOR 1</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="ucx_8h.html#af12001920ca2fc1405615684e4dea284"> 46</a></span> <span class="preprocessor">#define UCX_VERSION (((UCX_VERSION_MAJOR)<<16)|UCX_VERSION_MINOR)</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="preprocessor">#include <stdlib.h></span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="preprocessor">#include <stdint.h></span></div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#ifdef _WIN32</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#if !(defined __ssize_t_defined || defined _SSIZE_T_)</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#include <BaseTsd.h></span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="keyword">typedef</span> SSIZE_T ssize_t;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#define __ssize_t_defined</span></div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#define _SSIZE_T_</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#endif </span><span class="comment">/* __ssize_t_defined and _SSIZE_T */</span><span class="preprocessor"></span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#else </span><span class="comment">/* !_WIN32 */</span><span class="preprocessor"></span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#include <sys/types.h></span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#endif </span><span class="comment">/* _WIN32 */</span><span class="preprocessor"></span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="ucx_8h.html#ad2b370c2809914c8b7fedab163c266b3"> 72</a></span> <span class="keyword">typedef</span> void(*<a class="code" href="ucx_8h.html#ad2b370c2809914c8b7fedab163c266b3">ucx_destructor</a>)(<span class="keywordtype">void</span>*);</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="ucx_8h.html#afe5e2d5dbf34778e0e97852051570791"> 84</a></span> <span class="keyword">typedef</span> int(*<a class="code" href="ucx_8h.html#afe5e2d5dbf34778e0e97852051570791">cmp_func</a>)(<span class="keyword">const</span> <span class="keywordtype">void</span>*,<span class="keyword">const</span> <span class="keywordtype">void</span>*,<span class="keywordtype">void</span>*);</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div><div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="ucx_8h.html#a0bc5bf89e556c1d45d10863d52728ac9"> 93</a></span> <span class="keyword">typedef</span> intmax_t(*<a class="code" href="ucx_8h.html#a0bc5bf89e556c1d45d10863d52728ac9">distance_func</a>)(<span class="keyword">const</span> <span class="keywordtype">void</span>*,<span class="keyword">const</span> <span class="keywordtype">void</span>*,<span class="keywordtype">void</span>*);</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> </div><div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="ucx_8h.html#aab917a5fe0965673c73e8ebd0a1fc967"> 106</a></span> <span class="keyword">typedef</span> <span class="keywordtype">void</span>*(*copy_func)(<span class="keyword">const</span> <span class="keywordtype">void</span>*,<span class="keywordtype">void</span>*);</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="ucx_8h.html#a989b3f0fa4d307d278378fde435641ed"> 119</a></span> <span class="keyword">typedef</span> size_t(*<a class="code" href="ucx_8h.html#a989b3f0fa4d307d278378fde435641ed">write_func</a>)(<span class="keyword">const</span> <span class="keywordtype">void</span>*, size_t, size_t, <span class="keywordtype">void</span>*);</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div><div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="ucx_8h.html#a6a67e255e460acb58f802067b3ff5fd5"> 132</a></span> <span class="keyword">typedef</span> size_t(*<a class="code" href="ucx_8h.html#a6a67e255e460acb58f802067b3ff5fd5">read_func</a>)(<span class="keywordtype">void</span>*, size_t, size_t, <span class="keywordtype">void</span>*);</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="preprocessor">#if __GNUC__ >= 5 || defined(__clang__)</span></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="preprocessor">#define UCX_MUL_BUILTIN</span></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="preprocessor">#if __WORDSIZE == 32</span></div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="preprocessor">#define ucx_szmul(a, b, result) __builtin_umul_overflow(a, b, result)</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="preprocessor">#else </span><span class="comment">/* __WORDSIZE != 32 */</span><span class="preprocessor"></span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="preprocessor">#define ucx_szmul(a, b, result) __builtin_umull_overflow(a, b, result)</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="preprocessor">#endif </span><span class="comment">/* __WORDSIZE */</span><span class="preprocessor"></span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="preprocessor">#else </span><span class="comment">/* no GNUC or clang bultin */</span><span class="preprocessor"></span></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div><div class="line"><a name="l00181"></a><span class="lineno"><a class="line" href="ucx_8h.html#a0b5ed6c1a0b15356f4f948acfd32a4cc"> 181</a></span> <span class="preprocessor">#define ucx_szmul(a, b, result) ucx_szmul_impl(a, b, result)</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="keywordtype">int</span> <a class="code" href="ucx_8h.html#a6637171cc0ec097b297f731a3036dd3b">ucx_szmul_impl</a>(<span class="keywordtype">size_t</span> a, <span class="keywordtype">size_t</span> b, <span class="keywordtype">size_t</span> *result);</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> <span class="preprocessor">#ifdef __cplusplus</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> }</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="preprocessor">#endif </span><span class="comment">/* UCX_H */</span><span class="preprocessor"></span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div><div class="ttc" id="ucx_8h_html_afe5e2d5dbf34778e0e97852051570791"><div class="ttname"><a href="ucx_8h.html#afe5e2d5dbf34778e0e97852051570791">cmp_func</a></div><div class="ttdeci">int(* cmp_func)(const void *, const void *, void *)</div><div class="ttdoc">Function pointer to a compare function. </div><div class="ttdef"><b>Definition:</b> ucx.h:84</div></div> <div class="ttc" id="ucx_8h_html_a6a67e255e460acb58f802067b3ff5fd5"><div class="ttname"><a href="ucx_8h.html#a6a67e255e460acb58f802067b3ff5fd5">read_func</a></div><div class="ttdeci">size_t(* read_func)(void *, size_t, size_t, void *)</div><div class="ttdoc">Function pointer to a read function. </div><div class="ttdef"><b>Definition:</b> ucx.h:132</div></div> <div class="ttc" id="ucx_8h_html_a0bc5bf89e556c1d45d10863d52728ac9"><div class="ttname"><a href="ucx_8h.html#a0bc5bf89e556c1d45d10863d52728ac9">distance_func</a></div><div class="ttdeci">intmax_t(* distance_func)(const void *, const void *, void *)</div><div class="ttdoc">Function pointer to a distance function. </div><div class="ttdef"><b>Definition:</b> ucx.h:93</div></div> <div class="ttc" id="ucx_8h_html_a6637171cc0ec097b297f731a3036dd3b"><div class="ttname"><a href="ucx_8h.html#a6637171cc0ec097b297f731a3036dd3b">ucx_szmul_impl</a></div><div class="ttdeci">int ucx_szmul_impl(size_t a, size_t b, size_t *result)</div><div class="ttdoc">Performs a multiplication of size_t values and checks for overflow. </div><div class="ttdef"><b>Definition:</b> ucx.c:48</div></div> <div class="ttc" id="ucx_8h_html_a989b3f0fa4d307d278378fde435641ed"><div class="ttname"><a href="ucx_8h.html#a989b3f0fa4d307d278378fde435641ed">write_func</a></div><div class="ttdeci">size_t(* write_func)(const void *, size_t, size_t, void *)</div><div class="ttdoc">Function pointer to a write function. </div><div class="ttdef"><b>Definition:</b> ucx.h:119</div></div> <div class="ttc" id="ucx_8h_html_ad2b370c2809914c8b7fedab163c266b3"><div class="ttname"><a href="ucx_8h.html#ad2b370c2809914c8b7fedab163c266b3">ucx_destructor</a></div><div class="ttdeci">void(* ucx_destructor)(void *)</div><div class="ttdoc">A function pointer to a destructor function. </div><div class="ttdef"><b>Definition:</b> ucx.h:72</div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated on Thu Dec 19 2019 19:58:24 for ucx by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/> </a> 1.8.13 </small></address> </body> </html>
