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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD> <TITLE>int pblHtRemove</TITLE> <META NAME="GENERATOR" CONTENT="DOC++ 3.4.9"></HEAD> <center><H2>Program Base Library Functions</H2></center><H2>int <A HREF="#DOC.DOCU">pblHtRemove</A></H2><H2>( <!1><A HREF="pblHashTable_t.html">pblHashTable_t</A>* h, void* key,<BR> size_t keylen )</H2><BLOCKQUOTE> remove an item from the hash table</BLOCKQUOTE><A NAME="DOC.DOCU"></A><HR><H2>Documentation</H2><BLOCKQUOTE>remove an item from the hash table<P>parameters key and keylen are optional, if they are not giventhe current record is deleted<P>if the current record is removed the pointer to the current recordis moved to the next record.<P><PRE> Example:<P> for( data = pblHtFirst( h ); data; data = pblHtRemove( h, 0, 0 )) { this loop removes all items from a hash table } </PRE><P>if the current record is moved by this function the next call to<!1><A HREF="pblHtNext.html">pblHtNext</A> will return the data of the then current record.Therefore the following code does what is expected:It visits all items of the hash table and removes the expired ones.<P><PRE> for( data = pblHtFirst( h ); data; data = pblHtNext( h )) { if( needs to be deleted( data )) { pblHtRemove( h, 0, 0 ); } } </PRE><P></BLOCKQUOTE><DL><DT><DT><B>Parameters:</B><DD><B>h</B> - hash table to remove from <BR><B>key</B> - OPT: key to remove <BR><B>keylen</B> - OPT: length of that key <BR><DT><B>Returns:</B><DD> int ret == 0: ok<BR> int ret == -1: an error, see pbl_errno:<BR> PBL_ERROR_NOT_FOUND: the current item is not positioned<BR> or there is no item with the given key<BR><DD></DL><P><P><I><A HREF="index.html">Alphabetic index</A></I></P><HR><BR>This page was generated with the help of <A HREF="http://docpp.sourceforge.net">DOC++</A>.</BODY></HTML>⌨️ 快捷键说明
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