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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.8 $ -->
<refentry id="function.yaz-addinfo">
<refnamediv>
<refname>yaz_addinfo</refname>
<refpurpose>Returns additional error information</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>string</type><methodname>yaz_addinfo</methodname>
<methodparam><type>resource</type><parameter>id</parameter></methodparam>
</methodsynopsis>
<para>
Returns additional error information for the last request on the server.
</para>
<para>
With some servers, this function may return the same string as
<function>yaz_error</function>.
</para>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
<varlistentry>
<term><parameter>id</parameter></term>
<listitem>
<para>
The connection resource returned by <function>yaz_connect</function>.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
A string containing additional error information or an empty string if the
last operation was successful or if no additional information was provided
by the server.
</para>
</refsect1>
<refsect1 role="seealso">
&reftitle.seealso;
<para>
<simplelist>
<member><function>yaz_error</function></member>
<member><function>yaz_errno</function></member>
</simplelist>
</para>
</refsect1>
</refentry>
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