hi!<br />Can you tell me what does this line means<br />#define GEVHDRSZ ( offsetof(GistEntryVector, vector[0]) )<br
/><pre><spanclass="preprocessor">#ifndef offsetof</span>
<a name="l00501"></a><span class="preprocessor"></span><span class="preprocessor">#define offsetof(type, field)
((long)&((type *)0)->field)</span><br /><span class="preprocessor"></span><span class="preprocessor">
#endif </span><span class="comment">/* offsetof */</span><br /><br /></pre>regards <br />jorge<br /><br />