diff -r 1ec36e652e57 -r fb82e7a92258 docs/Writerside/topics/iterator.h.md
--- a/docs/Writerside/topics/iterator.h.md	Sun Oct 19 21:18:17 2025 +0200
+++ b/docs/Writerside/topics/iterator.h.md	Mon Oct 20 19:44:18 2025 +0200
@@ -119,6 +119,7 @@
 ```C
 struct cx_iterator_base_s {
     bool (*valid)(const void *);
+    bool (*valid_impl)(const void *);
     void *(*current)(const void *);
     void (*next)(void *);
     void *(*current_impl)(const void *);
@@ -138,7 +139,7 @@
 When an iterator is created, the `allow_remove` field is set to indicate if removal of elements is supported.
 The `remove` field is set to indicate if the current element should be removed on the next call to `next()` (see `cxIteratorFlagRemoval()`).
 
-Iterators may be wrapped in which case the original implementation can be stored in `current_impl` and `next_impl`.
+Iterators may be wrapped in which case the original implementation can be stored in the `*_impl` function pointers.
 They can then be called by a wrapper implementation pointed to by `current` and `next`, respectively.
 This can be useful when you want to support the `store_pointer` field of the [](collection.h.md) API.