diff -r d7129285ac32 -r dce9b8450656 src/cx/map.h
--- a/src/cx/map.h	Tue Mar 21 17:21:20 2023 +0100
+++ b/src/cx/map.h	Tue Mar 28 19:13:33 2023 +0200
@@ -47,6 +47,9 @@
 #endif
 
 #ifndef CX_STORE_POINTERS
+/**
+ * Special constant used for creating collections that are storing pointers.
+ */
 #define CX_STORE_POINTERS 0
 #endif