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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://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=11"/> <meta name="generator" content="Doxygen 1.9.4"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>FreeTDS API: include/freetds/macros.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 id="projectrow"> <td id="projectalign"> <div id="projectname">FreeTDS API </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.9.4 --> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */ var searchBox = new SearchBox("searchBox", "search",'Search','.html'); /* @license-end */ </script> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */ $(function() { initMenu('',true,false,'search.php','Search'); $(document).ready(function() { init_search(); }); }); /* @license-end */ </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_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_f46f2c05841018b6ef8dbd3316ddb41a.html">freetds</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"><div class="title">macros.h</div></div> </div><!--header--> <div class="contents"> <div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/* FreeTDS - Library of routines accessing Sybase and Microsoft databases</span></div> <div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Brian Bruns</span></div> <div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Copyright (C) 2010-2017 Frediano Ziglio</span></div> <div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> *</span></div> <div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * This library is free software; you can redistribute it and/or</span></div> <div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * modify it under the terms of the GNU Library General Public</span></div> <div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * License as published by the Free Software Foundation; either</span></div> <div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * version 2 of the License, or (at your option) any later version.</span></div> <div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> *</span></div> <div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * This library is distributed in the hope that it will be useful,</span></div> <div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div> <div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div> <div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * Library General Public License for more details.</span></div> <div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> *</span></div> <div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * You should have received a copy of the GNU Library General Public</span></div> <div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * License along with this library; if not, write to the</span></div> <div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330,</span></div> <div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> * Boston, MA 02111-1307, USA.</span></div> <div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment"> */</span></div> <div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div> <div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#ifndef _freetds_macros_h_</span></div> <div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#define _freetds_macros_h_</span></div> <div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div> <div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#ifndef _freetds_config_h_</span></div> <div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#error should include config.h before</span></div> <div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div> <div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#if HAVE_STDDEF_H</span></div> <div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include <stddef.h></span></div> <div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#endif </span><span class="comment">/* HAVE_STDDEF_H */</span><span class="preprocessor"></span></div> <div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> </div> <div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#include "tds_sysdep_public.h"</span></div> <div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div> <div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="preprocessor">#define TDS_ZERO_FREE(x) do {free((x)); (x) = NULL;} while(0)</span></div> <div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="preprocessor">#define TDS_VECTOR_SIZE(x) (sizeof(x)/sizeof(x[0]))</span></div> <div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div> <div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="preprocessor">#ifdef offsetof</span></div> <div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="preprocessor">#define TDS_OFFSET(type, field) offsetof(type, field)</span></div> <div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="preprocessor">#else</span></div> <div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="preprocessor">#define TDS_OFFSET(type, field) (((char*)&((type*)0)->field)-((char*)0))</span></div> <div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div> <div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span><span class="preprocessor">#if ENABLE_EXTRA_CHECKS</span></div> <div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="preprocessor"># if defined(__llvm__) || (defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)))</span></div> <div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="preprocessor"># define TDS_COMPILE_CHECK(name,check) \</span></div> <div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="preprocessor"> _Static_assert(check,#name)</span></div> <div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="preprocessor"># elif defined(__GNUC__) && __GNUC__ >= 2</span></div> <div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="preprocessor"># define TDS_COMPILE_CHECK(name,check) \</span></div> <div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span><span class="preprocessor"> extern int name[(check)?1:-1] __attribute__ ((unused))</span></div> <div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="preprocessor"># else</span></div> <div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="preprocessor"># define TDS_COMPILE_CHECK(name,check) \</span></div> <div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="preprocessor"> extern int name[(check)?1:-1]</span></div> <div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span><span class="preprocessor"># endif</span></div> <div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span><span class="preprocessor"># define TDS_EXTRA_CHECK(stmt) stmt</span></div> <div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span><span class="preprocessor">#else</span></div> <div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span><span class="preprocessor"># define TDS_COMPILE_CHECK(name,check) \</span></div> <div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="preprocessor"> extern int disabled_check_##name</span></div> <div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="preprocessor"># define TDS_EXTRA_CHECK(stmt)</span></div> <div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div> <div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span><span class="preprocessor">#if defined(__GNUC__) && __GNUC__ >= 3</span></div> <div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span><span class="preprocessor"># define TDS_LIKELY(x) __builtin_expect(!!(x), 1)</span></div> <div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="preprocessor"># define TDS_UNLIKELY(x) __builtin_expect(!!(x), 0)</span></div> <div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span><span class="preprocessor">#else</span></div> <div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span><span class="preprocessor"># define TDS_LIKELY(x) (x)</span></div> <div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span><span class="preprocessor"># define TDS_UNLIKELY(x) (x)</span></div> <div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div> <div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span><span class="preprocessor">#if ENABLE_EXTRA_CHECKS && defined(__GNUC__) && __GNUC__ >= 4</span></div> <div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span><span class="preprocessor">#define TDS_WUR __attribute__ ((__warn_unused_result__))</span></div> <div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span><span class="preprocessor">#else</span></div> <div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span><span class="preprocessor">#define TDS_WUR</span></div> <div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div> <div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span><span class="preprocessor">#define TDS_INT2PTR(i) ((void*)(((char*)0)+((intptr_t)(i))))</span></div> <div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span><span class="preprocessor">#define TDS_PTR2INT(p) ((int)(((char*)(p))-((char*)0)))</span></div> <div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> </div> <div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span><span class="preprocessor">#endif</span></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4 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