<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.variant-xor" xmlns="http://docbook.org/ns/docbook">
 <refnamediv>
  <refname>variant_xor</refname>
  <refpurpose>Performs a logical exclusion on two variants</refpurpose>
 </refnamediv>
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>mixed</type><methodname>variant_xor</methodname>
   <methodparam><type>mixed</type><parameter>left</parameter></methodparam>
   <methodparam><type>mixed</type><parameter>right</parameter></methodparam>
  </methodsynopsis>
  <para>
   Performs a logical exclusion.
  </para>
 </refsect1>
 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>left</parameter></term>
     <listitem>
      <para>
       The left operand.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>right</parameter></term>
     <listitem>
      <para>
       The right operand.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
   &com.variant-arith;
  </para>
 </refsect1>
 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   <table>
    <title>Variant XOR Rules</title>
    <tgroup cols="3">
     <thead>
      <row>
       <entry>If <parameter>left</parameter> is</entry>
       <entry>If <parameter>right</parameter> is</entry>
       <entry>then the result is</entry>
      </row>
     </thead>
     <tbody>
      <row><entry>&true;</entry><entry>&true;</entry><entry>&false;</entry></row>
      <row><entry>&true;</entry><entry>&false;</entry><entry>&true;</entry></row>
      <row><entry>&false;</entry><entry>&true;</entry><entry>&true;</entry></row>
      <row><entry>&false;</entry><entry>&false;</entry><entry>&false;</entry></row>
      <row><entry>&null;</entry><entry>&null;</entry><entry>&null;</entry></row>
     </tbody>
    </tgroup>
   </table>
  </para>
 </refsect1>
 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>variant_or</function></member>
    <member><function>variant_and</function></member>
   </simplelist>
  </para>
 </refsect1>
</refentry>

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