Double defined operator in test 74

In test  074 the operator `&=` was identically defined twice, now corrected with const.
In XHTML this resulted in error:
`struct_foo.xhtml:204: element a: validity error : ID aa20bd44b1bb87a652ac65170ddfa1a5a already defined`

3 files changed, 373 insertions, 369 deletions

diff --git a/testing/074/namespacens.xml b/testing/074/namespacens.xml
index 495e550..4eccf88 100644..100755
--- a/testing/074/namespacens.xml
+++ b/testing/074/namespacens.xml
@@ -1,81 +1,81 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<doxygen xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="compound.xsd" version="">
-  <compounddef id="namespacens" kind="namespace" language="C++">
-    <compoundname>ns</compoundname>
-      <sectiondef kind="func">
-      <memberdef kind="function" id="namespacens_1afd2e8a8437eff630f52a452ea6dc6e82" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
-        <type>int</type>
-        <definition>int ns::operator""_op</definition>
-        <argsstring>(unsigned long long)</argsstring>
-        <name>operator""_op</name>
-        <param>
-          <type>unsigned long long</type>
-        </param>
-        <briefdescription>
-          <para>An operator. </para>
-        </briefdescription>
-        <detaileddescription>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="66" column="1"/>
-      </memberdef>
-      <memberdef kind="function" id="namespacens_1a47f70e51e66b81b8383a4e2da66f1e09" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
-        <type>int</type>
-        <definition>int ns::operator""_oq</definition>
-        <argsstring>(unsigned long long)</argsstring>
-        <name>operator""_oq</name>
-        <param>
-          <type>unsigned long long</type>
-        </param>
-        <briefdescription>
-          <para>Another operator. </para>
-        </briefdescription>
-        <detaileddescription>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="69" column="1"/>
-      </memberdef>
-      <memberdef kind="function" id="namespacens_1aaa9eb8a7b40d4ed0edbe5e163b4e6e8d" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
-        <type>void</type>
-        <definition>void ns::foo</definition>
-        <argsstring>(std::initializer_list&lt; int * &gt;)</argsstring>
-        <name>foo</name>
-        <param>
-          <type>std::initializer_list&lt; int * &gt;</type>
-        </param>
-        <briefdescription>
-          <para>Function. </para>
-        </briefdescription>
-        <detaileddescription>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="72" column="1"/>
-      </memberdef>
-      </sectiondef>
-    <briefdescription>
-<para>A namespace. </para>
-    </briefdescription>
-    <detaileddescription>
-      <para>
-        <itemizedlist>
-          <listitem>
-            <para>Link to an UDL w/o spaces: <ref refid="namespacens_1afd2e8a8437eff630f52a452ea6dc6e82" kindref="member">operator""_op</ref></para>
-          </listitem>
-          <listitem>
-            <para>Link to an UDL with spaces: <ref refid="namespacens_1a47f70e51e66b81b8383a4e2da66f1e09" kindref="member">operator""_oq</ref></para>
-          </listitem>
-          <listitem>
-            <para>Link to a function with spaces: <ref refid="namespacens_1aaa9eb8a7b40d4ed0edbe5e163b4e6e8d" kindref="member">foo(std::initializer_list&lt; int* &gt;)</ref></para>
-          </listitem>
-          <listitem>
-            <para>Link to a function w/o spaces: <ref refid="namespacens_1aaa9eb8a7b40d4ed0edbe5e163b4e6e8d" kindref="member">foo(std::initializer_list&lt;int*&gt;)</ref> </para>
-          </listitem>
-        </itemizedlist>
-      </para>
-    </detaileddescription>
-    <location file="074_ref.cpp" line="63" column="1"/>
-  </compounddef>
-</doxygen>
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>

+<doxygen xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="compound.xsd" version="">

+  <compounddef id="namespacens" kind="namespace" language="C++">

+    <compoundname>ns</compoundname>

+    <sectiondef kind="func">

+      <memberdef kind="function" id="namespacens_1afd2e8a8437eff630f52a452ea6dc6e82" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">

+        <type>int</type>

+        <definition>int ns::operator""_op</definition>

+        <argsstring>(unsigned long long)</argsstring>

+        <name>operator""_op</name>

+        <param>

+          <type>unsigned long long</type>

+        </param>

+        <briefdescription>

+          <para>An operator. </para>

+        </briefdescription>

+        <detaileddescription>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="67" column="1"/>

+      </memberdef>

+      <memberdef kind="function" id="namespacens_1a47f70e51e66b81b8383a4e2da66f1e09" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">

+        <type>int</type>

+        <definition>int ns::operator""_oq</definition>

+        <argsstring>(unsigned long long)</argsstring>

+        <name>operator""_oq</name>

+        <param>

+          <type>unsigned long long</type>

+        </param>

+        <briefdescription>

+          <para>Another operator. </para>

+        </briefdescription>

+        <detaileddescription>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="70" column="1"/>

+      </memberdef>

+      <memberdef kind="function" id="namespacens_1aaa9eb8a7b40d4ed0edbe5e163b4e6e8d" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">

+        <type>void</type>

+        <definition>void ns::foo</definition>

+        <argsstring>(std::initializer_list&lt; int * &gt;)</argsstring>

+        <name>foo</name>

+        <param>

+          <type>std::initializer_list&lt; int * &gt;</type>

+        </param>

+        <briefdescription>

+          <para>Function. </para>

+        </briefdescription>

+        <detaileddescription>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="73" column="1"/>

+      </memberdef>

+    </sectiondef>

+    <briefdescription>

+      <para>A namespace. </para>

+    </briefdescription>

+    <detaileddescription>

+      <para>

+        <itemizedlist>

+          <listitem>

+            <para>Link to an UDL w/o spaces: <ref refid="namespacens_1afd2e8a8437eff630f52a452ea6dc6e82" kindref="member">operator""_op</ref></para>

+          </listitem>

+          <listitem>

+            <para>Link to an UDL with spaces: <ref refid="namespacens_1a47f70e51e66b81b8383a4e2da66f1e09" kindref="member">operator""_oq</ref></para>

+          </listitem>

+          <listitem>

+            <para>Link to a function with spaces: <ref refid="namespacens_1aaa9eb8a7b40d4ed0edbe5e163b4e6e8d" kindref="member">foo(std::initializer_list&lt; int* &gt;)</ref></para>

+          </listitem>

+          <listitem>

+            <para>Link to a function w/o spaces: <ref refid="namespacens_1aaa9eb8a7b40d4ed0edbe5e163b4e6e8d" kindref="member">foo(std::initializer_list&lt;int*&gt;)</ref> </para>

+          </listitem>

+        </itemizedlist>

+      </para>

+    </detaileddescription>

+    <location file="074_ref.cpp" line="64" column="1"/>

+  </compounddef>

+</doxygen>

diff --git a/testing/074/struct_foo.xml b/testing/074/struct_foo.xml
index c49fbaa..7096238 100644..100755
--- a/testing/074/struct_foo.xml
+++ b/testing/074/struct_foo.xml
@@ -1,287 +1,290 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<doxygen xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="compound.xsd" version="">
-  <compounddef id="struct_foo" kind="struct" language="C++" prot="public">
-    <compoundname>Foo</compoundname>
-    <sectiondef kind="public-func">
-      <memberdef kind="function" id="struct_foo_1a5c036d1b3561a0e1beffe8c6799a4276" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
-        <type/>
-        <definition>Foo::Foo</definition>
-        <argsstring>()</argsstring>
-        <name>Foo</name>
-        <briefdescription>
-        </briefdescription>
-        <detaileddescription>
-          <para>Constructor </para>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="20" column="1"/>
-      </memberdef>
-      <memberdef kind="function" id="struct_foo_1a279debd94d894223fa8468933e2d6188" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
-        <type><ref refid="struct_foo" kindref="compound">Foo</ref> &amp;</type>
-        <definition>Foo&amp; Foo::operator&lt;&lt;</definition>
-        <argsstring>(int i)</argsstring>
-        <name>operator&lt;&lt;</name>
-        <param>
-          <type>int</type>
-          <declname>i</declname>
-        </param>
-        <briefdescription>
-        </briefdescription>
-        <detaileddescription>
-          <para>overloaded less than operator </para>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="31" column="1"/>
-      </memberdef>
-      <memberdef kind="function" id="struct_foo_1a48bcc3de9b2f1ad09a3518a0c9f0da61" prot="public" static="no" const="yes" explicit="no" inline="no" virt="non-virtual">
-        <type>const <ref refid="struct_foo" kindref="compound">Foo</ref> &amp;</type>
-        <definition>const Foo&amp; Foo::operator&lt;&lt;</definition>
-        <argsstring>(int i) const</argsstring>
-        <name>operator&lt;&lt;</name>
-        <param>
-          <type>int</type>
-          <declname>i</declname>
-        </param>
-        <briefdescription>
-        </briefdescription>
-        <detaileddescription>
-          <para>overloaded const less than operator </para>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="34" column="1"/>
-      </memberdef>
-      <memberdef kind="function" id="struct_foo_1a3a41dcf8c53f777d50676ea28400a640" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
-        <type>int</type>
-        <definition>int Foo::operator()</definition>
-        <argsstring>(int i)</argsstring>
-        <name>operator()</name>
-        <param>
-          <type>int</type>
-          <declname>i</declname>
-        </param>
-        <briefdescription>
-        </briefdescription>
-        <detaileddescription>
-          <para>overloaded call operator </para>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="37" column="1"/>
-      </memberdef>
-      <memberdef kind="function" id="struct_foo_1ae3c9c1f33cdb8b932c6eb104660a262b" prot="public" static="no" const="yes" explicit="no" inline="no" virt="non-virtual">
-        <type>int</type>
-        <definition>int Foo::operator()</definition>
-        <argsstring>(int i) const</argsstring>
-        <name>operator()</name>
-        <param>
-          <type>int</type>
-          <declname>i</declname>
-        </param>
-        <briefdescription>
-        </briefdescription>
-        <detaileddescription>
-          <para>overloaded call operator </para>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="40" column="1"/>
-      </memberdef>
-      <memberdef kind="function" id="struct_foo_1aa20bd44b1bb87a652ac65170ddfa1a5a" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
-        <type><ref refid="struct_foo" kindref="compound">Foo</ref> &amp;</type>
-        <definition>Foo&amp; Foo::operator&amp;=</definition>
-        <argsstring>(const Foo &amp;rhs)</argsstring>
-        <name>operator&amp;=</name>
-        <param>
-          <type>const <ref refid="struct_foo" kindref="compound">Foo</ref> &amp;</type>
-          <declname>rhs</declname>
-        </param>
-        <briefdescription>
-        </briefdescription>
-        <detaileddescription>
-          <para>and equal operator </para>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="43" column="1"/>
-      </memberdef>
-      <memberdef kind="function" id="struct_foo_1aa20bd44b1bb87a652ac65170ddfa1a5a" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
-        <type><ref refid="struct_foo" kindref="compound">Foo</ref> &amp;</type>
-        <definition>Foo&amp; Foo::operator&amp;=</definition>
-        <argsstring>(const Foo &amp;rhs)</argsstring>
-        <name>operator&amp;=</name>
-        <param>
-          <type>const <ref refid="struct_foo" kindref="compound">Foo</ref> &amp;</type>
-          <declname>rhs</declname>
-        </param>
-        <briefdescription>
-        </briefdescription>
-        <detaileddescription>
-          <para>and equal operator </para>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="46" column="1"/>
-      </memberdef>
-      <memberdef kind="function" id="struct_foo_1a0514e1f5b30cbf77e1c39d7aba308656" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">
-        <type>int *</type>
-        <definition>int* Foo::operator-&gt;*</definition>
-        <argsstring>(int *p)</argsstring>
-        <name>operator-&gt;*</name>
-        <param>
-          <type>int *</type>
-          <declname>p</declname>
-        </param>
-        <briefdescription>
-        </briefdescription>
-        <detaileddescription>
-          <para>Member pointer operator </para>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="49" column="1"/>
-      </memberdef>
-      <memberdef kind="function" id="struct_foo_1a978acd73e910ce56cc169ebec8736669" prot="public" static="no" const="yes" explicit="no" inline="no" virt="non-virtual">
-        <type>
-          <ref refid="struct_foo" kindref="compound">Foo</ref>
-        </type>
-        <definition>Foo Foo::fun</definition>
-        <argsstring>() const</argsstring>
-        <name>fun</name>
-        <briefdescription>
-          <para>Fun with itself. </para>
-        </briefdescription>
-        <detaileddescription>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="52" column="1"/>
-      </memberdef>
-    </sectiondef>
-    <sectiondef kind="public-static-func">
-      <memberdef kind="function" id="struct_foo_1abdf64a71706807b0f946265902c530ee" prot="public" static="yes" const="no" explicit="no" inline="no" virt="non-virtual">
-        <type>
-          <ref refid="struct_foo" kindref="compound">Foo</ref>
-        </type>
-        <definition>static Foo Foo::fun</definition>
-        <argsstring>(Foo a, Foo b)</argsstring>
-        <name>fun</name>
-        <param>
-          <type>
-            <ref refid="struct_foo" kindref="compound">Foo</ref>
-          </type>
-          <declname>a</declname>
-        </param>
-        <param>
-          <type>
-            <ref refid="struct_foo" kindref="compound">Foo</ref>
-          </type>
-          <declname>b</declname>
-        </param>
-        <briefdescription>
-          <para>Fun of two. </para>
-        </briefdescription>
-        <detaileddescription>
-          <para>
-            <itemizedlist>
-              <listitem>
-                <para>
-                  <ref refid="struct_foo_1a978acd73e910ce56cc169ebec8736669" kindref="member">fun() const</ref>
-                </para>
-              </listitem>
-              <listitem>
-                <para>
-                  <ref refid="struct_foo_1a978acd73e910ce56cc169ebec8736669" kindref="member">fun() const</ref>
-                </para>
-              </listitem>
-              <listitem>
-                <para>
-                  <ref refid="struct_foo_1a978acd73e910ce56cc169ebec8736669" kindref="member">title</ref>
-                </para>
-              </listitem>
-            </itemizedlist>
-          </para>
-        </detaileddescription>
-        <inbodydescription>
-        </inbodydescription>
-        <location file="074_ref.cpp" line="28" column="1"/>
-      </memberdef>
-    </sectiondef>
-    <briefdescription>
-      <para><ref refid="struct_foo" kindref="compound">Foo</ref> class. </para>
-    </briefdescription>
-    <detaileddescription>
-      <para>
-        <simplesect kind="see">
-          <para><ref refid="struct_foo_1a5c036d1b3561a0e1beffe8c6799a4276" kindref="member">Foo::Foo()</ref> constructor for details. </para>
-        </simplesect>
-        <simplesect kind="see">
-          <para><ref refid="struct_foo" kindref="compound">Foo</ref> constant. </para>
-        </simplesect>
-        <simplesect kind="see">
-          <para><ref refid="struct_foo_1a279debd94d894223fa8468933e2d6188" kindref="member">less than operator</ref>. </para>
-        </simplesect>
-        <simplesect kind="see">
-          <para><ref refid="struct_foo_1a48bcc3de9b2f1ad09a3518a0c9f0da61" kindref="member">const less than operator</ref>. </para>
-        </simplesect>
-        <simplesect kind="see">
-          <para><ref refid="struct_foo_1a3a41dcf8c53f777d50676ea28400a640" kindref="member">call operator</ref>. </para>
-        </simplesect>
-        <simplesect kind="see">
-          <para><ref refid="struct_foo_1ae3c9c1f33cdb8b932c6eb104660a262b" kindref="member">const call operator</ref>. </para>
-        </simplesect>
-        <simplesect kind="see">
-          <para><ref refid="struct_foo_1aa20bd44b1bb87a652ac65170ddfa1a5a" kindref="member">and equal operator</ref>. </para>
-        </simplesect>
-        <simplesect kind="see">
-          <para><ref refid="struct_foo_1a0514e1f5b30cbf77e1c39d7aba308656" kindref="member">member pointer operator</ref>. </para>
-        </simplesect>
-      </para>
-    </detaileddescription>
-    <location file="074_ref.cpp" line="18" column="1" bodyfile="074_ref.cpp" bodystart="18" bodyend="53"/>
-    <listofallmembers>
-      <member refid="struct_foo_1a5c036d1b3561a0e1beffe8c6799a4276" prot="public" virt="non-virtual">
-        <scope>Foo</scope>
-        <name>Foo</name>
-      </member>
-      <member refid="struct_foo_1abdf64a71706807b0f946265902c530ee" prot="public" virt="non-virtual">
-        <scope>Foo</scope>
-        <name>fun</name>
-      </member>
-      <member refid="struct_foo_1a978acd73e910ce56cc169ebec8736669" prot="public" virt="non-virtual">
-        <scope>Foo</scope>
-        <name>fun</name>
-      </member>
-      <member refid="struct_foo_1aa20bd44b1bb87a652ac65170ddfa1a5a" prot="public" virt="non-virtual">
-        <scope>Foo</scope>
-        <name>operator&amp;=</name>
-      </member>
-      <member refid="struct_foo_1aa20bd44b1bb87a652ac65170ddfa1a5a" prot="public" virt="non-virtual">
-        <scope>Foo</scope>
-        <name>operator&amp;=</name>
-      </member>
-      <member refid="struct_foo_1a3a41dcf8c53f777d50676ea28400a640" prot="public" virt="non-virtual">
-        <scope>Foo</scope>
-        <name>operator()</name>
-      </member>
-      <member refid="struct_foo_1ae3c9c1f33cdb8b932c6eb104660a262b" prot="public" virt="non-virtual">
-        <scope>Foo</scope>
-        <name>operator()</name>
-      </member>
-      <member refid="struct_foo_1a0514e1f5b30cbf77e1c39d7aba308656" prot="public" virt="non-virtual">
-        <scope>Foo</scope>
-        <name>operator-&gt;*</name>
-      </member>
-      <member refid="struct_foo_1a279debd94d894223fa8468933e2d6188" prot="public" virt="non-virtual">
-        <scope>Foo</scope>
-        <name>operator&lt;&lt;</name>
-      </member>
-      <member refid="struct_foo_1a48bcc3de9b2f1ad09a3518a0c9f0da61" prot="public" virt="non-virtual">
-        <scope>Foo</scope>
-        <name>operator&lt;&lt;</name>
-      </member>
-    </listofallmembers>
-  </compounddef>
-</doxygen>
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>

+<doxygen xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="compound.xsd" version="">

+  <compounddef id="struct_foo" kind="struct" language="C++" prot="public">

+    <compoundname>Foo</compoundname>

+    <sectiondef kind="public-func">

+      <memberdef kind="function" id="struct_foo_1a5c036d1b3561a0e1beffe8c6799a4276" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">

+        <type/>

+        <definition>Foo::Foo</definition>

+        <argsstring>()</argsstring>

+        <name>Foo</name>

+        <briefdescription>

+        </briefdescription>

+        <detaileddescription>

+          <para>Constructor </para>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="21" column="1"/>

+      </memberdef>

+      <memberdef kind="function" id="struct_foo_1a279debd94d894223fa8468933e2d6188" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">

+        <type><ref refid="struct_foo" kindref="compound">Foo</ref> &amp;</type>

+        <definition>Foo&amp; Foo::operator&lt;&lt;</definition>

+        <argsstring>(int i)</argsstring>

+        <name>operator&lt;&lt;</name>

+        <param>

+          <type>int</type>

+          <declname>i</declname>

+        </param>

+        <briefdescription>

+        </briefdescription>

+        <detaileddescription>

+          <para>overloaded less than operator </para>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="32" column="1"/>

+      </memberdef>

+      <memberdef kind="function" id="struct_foo_1a48bcc3de9b2f1ad09a3518a0c9f0da61" prot="public" static="no" const="yes" explicit="no" inline="no" virt="non-virtual">

+        <type>const <ref refid="struct_foo" kindref="compound">Foo</ref> &amp;</type>

+        <definition>const Foo&amp; Foo::operator&lt;&lt;</definition>

+        <argsstring>(int i) const</argsstring>

+        <name>operator&lt;&lt;</name>

+        <param>

+          <type>int</type>

+          <declname>i</declname>

+        </param>

+        <briefdescription>

+        </briefdescription>

+        <detaileddescription>

+          <para>overloaded const less than operator </para>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="35" column="1"/>

+      </memberdef>

+      <memberdef kind="function" id="struct_foo_1a3a41dcf8c53f777d50676ea28400a640" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">

+        <type>int</type>

+        <definition>int Foo::operator()</definition>

+        <argsstring>(int i)</argsstring>

+        <name>operator()</name>

+        <param>

+          <type>int</type>

+          <declname>i</declname>

+        </param>

+        <briefdescription>

+        </briefdescription>

+        <detaileddescription>

+          <para>overloaded call operator </para>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="38" column="1"/>

+      </memberdef>

+      <memberdef kind="function" id="struct_foo_1ae3c9c1f33cdb8b932c6eb104660a262b" prot="public" static="no" const="yes" explicit="no" inline="no" virt="non-virtual">

+        <type>int</type>

+        <definition>int Foo::operator()</definition>

+        <argsstring>(int i) const</argsstring>

+        <name>operator()</name>

+        <param>

+          <type>int</type>

+          <declname>i</declname>

+        </param>

+        <briefdescription>

+        </briefdescription>

+        <detaileddescription>

+          <para>overloaded call operator </para>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="41" column="1"/>

+      </memberdef>

+      <memberdef kind="function" id="struct_foo_1aa20bd44b1bb87a652ac65170ddfa1a5a" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">

+        <type><ref refid="struct_foo" kindref="compound">Foo</ref> &amp;</type>

+        <definition>Foo&amp; Foo::operator&amp;=</definition>

+        <argsstring>(const Foo &amp;rhs)</argsstring>

+        <name>operator&amp;=</name>

+        <param>

+          <type>const <ref refid="struct_foo" kindref="compound">Foo</ref> &amp;</type>

+          <declname>rhs</declname>

+        </param>

+        <briefdescription>

+        </briefdescription>

+        <detaileddescription>

+          <para>and equal operator </para>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="44" column="1"/>

+      </memberdef>

+      <memberdef kind="function" id="struct_foo_1ab1a2a53ad5b2a0f97422630330c151fe" prot="public" static="no" const="yes" explicit="no" inline="no" virt="non-virtual">

+        <type>const <ref refid="struct_foo" kindref="compound">Foo</ref> &amp;</type>

+        <definition>const Foo&amp; Foo::operator&amp;=</definition>

+        <argsstring>(const Foo &amp;rhs) const</argsstring>

+        <name>operator&amp;=</name>

+        <param>

+          <type>const <ref refid="struct_foo" kindref="compound">Foo</ref> &amp;</type>

+          <declname>rhs</declname>

+        </param>

+        <briefdescription>

+        </briefdescription>

+        <detaileddescription>

+          <para>and equal operator </para>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="47" column="1"/>

+      </memberdef>

+      <memberdef kind="function" id="struct_foo_1a0514e1f5b30cbf77e1c39d7aba308656" prot="public" static="no" const="no" explicit="no" inline="no" virt="non-virtual">

+        <type>int *</type>

+        <definition>int* Foo::operator-&gt;*</definition>

+        <argsstring>(int *p)</argsstring>

+        <name>operator-&gt;*</name>

+        <param>

+          <type>int *</type>

+          <declname>p</declname>

+        </param>

+        <briefdescription>

+        </briefdescription>

+        <detaileddescription>

+          <para>Member pointer operator </para>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="50" column="1"/>

+      </memberdef>

+      <memberdef kind="function" id="struct_foo_1a978acd73e910ce56cc169ebec8736669" prot="public" static="no" const="yes" explicit="no" inline="no" virt="non-virtual">

+        <type>

+          <ref refid="struct_foo" kindref="compound">Foo</ref>

+        </type>

+        <definition>Foo Foo::fun</definition>

+        <argsstring>() const</argsstring>

+        <name>fun</name>

+        <briefdescription>

+          <para>Fun with itself. </para>

+        </briefdescription>

+        <detaileddescription>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="53" column="1"/>

+      </memberdef>

+    </sectiondef>

+    <sectiondef kind="public-static-func">

+      <memberdef kind="function" id="struct_foo_1abdf64a71706807b0f946265902c530ee" prot="public" static="yes" const="no" explicit="no" inline="no" virt="non-virtual">

+        <type>

+          <ref refid="struct_foo" kindref="compound">Foo</ref>

+        </type>

+        <definition>static Foo Foo::fun</definition>

+        <argsstring>(Foo a, Foo b)</argsstring>

+        <name>fun</name>

+        <param>

+          <type>

+            <ref refid="struct_foo" kindref="compound">Foo</ref>

+          </type>

+          <declname>a</declname>

+        </param>

+        <param>

+          <type>

+            <ref refid="struct_foo" kindref="compound">Foo</ref>

+          </type>

+          <declname>b</declname>

+        </param>

+        <briefdescription>

+          <para>Fun of two. </para>

+        </briefdescription>

+        <detaileddescription>

+          <para>

+            <itemizedlist>

+              <listitem>

+                <para>

+                  <ref refid="struct_foo_1a978acd73e910ce56cc169ebec8736669" kindref="member">fun() const</ref>

+                </para>

+              </listitem>

+              <listitem>

+                <para>

+                  <ref refid="struct_foo_1a978acd73e910ce56cc169ebec8736669" kindref="member">fun() const</ref>

+                </para>

+              </listitem>

+              <listitem>

+                <para>

+                  <ref refid="struct_foo_1a978acd73e910ce56cc169ebec8736669" kindref="member">title</ref>

+                </para>

+              </listitem>

+            </itemizedlist>

+          </para>

+        </detaileddescription>

+        <inbodydescription>

+        </inbodydescription>

+        <location file="074_ref.cpp" line="29" column="1"/>

+      </memberdef>

+    </sectiondef>

+    <briefdescription>

+      <para><ref refid="struct_foo" kindref="compound">Foo</ref> class. </para>

+    </briefdescription>

+    <detaileddescription>

+      <para>

+        <simplesect kind="see">

+          <para><ref refid="struct_foo_1a5c036d1b3561a0e1beffe8c6799a4276" kindref="member">Foo::Foo()</ref> constructor for details. </para>

+        </simplesect>

+        <simplesect kind="see">

+          <para><ref refid="struct_foo" kindref="compound">Foo</ref> constant. </para>

+        </simplesect>

+        <simplesect kind="see">

+          <para><ref refid="struct_foo_1a279debd94d894223fa8468933e2d6188" kindref="member">less than operator</ref>. </para>

+        </simplesect>

+        <simplesect kind="see">

+          <para><ref refid="struct_foo_1a48bcc3de9b2f1ad09a3518a0c9f0da61" kindref="member">const less than operator</ref>. </para>

+        </simplesect>

+        <simplesect kind="see">

+          <para><ref refid="struct_foo_1a3a41dcf8c53f777d50676ea28400a640" kindref="member">call operator</ref>. </para>

+        </simplesect>

+        <simplesect kind="see">

+          <para><ref refid="struct_foo_1ae3c9c1f33cdb8b932c6eb104660a262b" kindref="member">const call operator</ref>. </para>

+        </simplesect>

+        <simplesect kind="see">

+          <para><ref refid="struct_foo_1aa20bd44b1bb87a652ac65170ddfa1a5a" kindref="member">and equal operator</ref>. </para>

+        </simplesect>

+        <simplesect kind="see">

+          <para><ref refid="struct_foo_1ab1a2a53ad5b2a0f97422630330c151fe" kindref="member">const and equal operator</ref>. </para>

+        </simplesect>

+        <simplesect kind="see">

+          <para><ref refid="struct_foo_1a0514e1f5b30cbf77e1c39d7aba308656" kindref="member">member pointer operator</ref>. </para>

+        </simplesect>

+      </para>

+    </detaileddescription>

+    <location file="074_ref.cpp" line="19" column="1" bodyfile="074_ref.cpp" bodystart="19" bodyend="54"/>

+    <listofallmembers>

+      <member refid="struct_foo_1a5c036d1b3561a0e1beffe8c6799a4276" prot="public" virt="non-virtual">

+        <scope>Foo</scope>

+        <name>Foo</name>

+      </member>

+      <member refid="struct_foo_1abdf64a71706807b0f946265902c530ee" prot="public" virt="non-virtual">

+        <scope>Foo</scope>

+        <name>fun</name>

+      </member>

+      <member refid="struct_foo_1a978acd73e910ce56cc169ebec8736669" prot="public" virt="non-virtual">

+        <scope>Foo</scope>

+        <name>fun</name>

+      </member>

+      <member refid="struct_foo_1aa20bd44b1bb87a652ac65170ddfa1a5a" prot="public" virt="non-virtual">

+        <scope>Foo</scope>

+        <name>operator&amp;=</name>

+      </member>

+      <member refid="struct_foo_1ab1a2a53ad5b2a0f97422630330c151fe" prot="public" virt="non-virtual">

+        <scope>Foo</scope>

+        <name>operator&amp;=</name>

+      </member>

+      <member refid="struct_foo_1a3a41dcf8c53f777d50676ea28400a640" prot="public" virt="non-virtual">

+        <scope>Foo</scope>

+        <name>operator()</name>

+      </member>

+      <member refid="struct_foo_1ae3c9c1f33cdb8b932c6eb104660a262b" prot="public" virt="non-virtual">

+        <scope>Foo</scope>

+        <name>operator()</name>

+      </member>

+      <member refid="struct_foo_1a0514e1f5b30cbf77e1c39d7aba308656" prot="public" virt="non-virtual">

+        <scope>Foo</scope>

+        <name>operator-&gt;*</name>

+      </member>

+      <member refid="struct_foo_1a279debd94d894223fa8468933e2d6188" prot="public" virt="non-virtual">

+        <scope>Foo</scope>

+        <name>operator&lt;&lt;</name>

+      </member>

+      <member refid="struct_foo_1a48bcc3de9b2f1ad09a3518a0c9f0da61" prot="public" virt="non-virtual">

+        <scope>Foo</scope>

+        <name>operator&lt;&lt;</name>

+      </member>

+    </listofallmembers>

+  </compounddef>

+</doxygen>

diff --git a/testing/074_ref.cpp b/testing/074_ref.cpp
index d283907..cc9cf4a 100644
--- a/testing/074_ref.cpp
+++ b/testing/074_ref.cpp
@@ -13,6 +13,7 @@
  *  @see @ref operator()(int) "call operator".
  *  @see @ref operator()(int) const "const call operator".
  *  @see @ref operator&=(const Foo&) "and equal operator".
+ *  @see @ref operator&=(const Foo&) const "const and equal operator".
  *  @see @ref operator->*(int *) "member pointer operator".
  */
 struct Foo {
@@ -43,7 +44,7 @@ struct Foo {
   Foo& operator&=(const Foo& rhs);
 
   /** and equal operator */
-  Foo& operator&=(const Foo& rhs);
+  const Foo& operator&=(const Foo& rhs) const;
 
   /** Member pointer operator */
   int* operator->*(int *p);