doc/concepts.tex: Mention class-slot initializers; cross-ref to metaclasses.

diff --git a/doc/concepts.tex b/doc/concepts.tex
index 394913c..399b148 100644 (file)
--- a/doc/concepts.tex
+++ b/doc/concepts.tex
@@ -240,6 +240,10 @@ the @|me| pointer: in an initializer for a slot defined by a class $C$, @|me|
 has type `pointer to $C$'.  (Note that the type of @|me| depends only on the
 class which defined the slot, not the class which defined the initializer.)
 
+A class can also define \emph{class slot initializers}, which provide values
+for a slot defined by its metaclass; see \xref{sec:concepts.metaclasses} for
+details.
+
 
 \subsection{C language integration} \label{sec:concepts.classes.c}