Add a reference to the name mangling description in the tutorial to the index. (GH-10138)
diff --git a/Doc/tutorial/classes.rst b/Doc/tutorial/classes.rst
index 7d3b823..edbc43f 100644
--- a/Doc/tutorial/classes.rst
+++ b/Doc/tutorial/classes.rst
@@ -672,6 +672,9 @@
or a data member). It should be considered an implementation detail and subject
to change without notice.
+.. index::
+ pair: name; mangling
+
Since there is a valid use-case for class-private members (namely to avoid name
clashes of names with names defined by subclasses), there is limited support for
such a mechanism, called :dfn:`name mangling`. Any identifier of the form