tree data OPTIMIZE lyds in lyd_merge()
There is no more freeing of memory and then allocation regarding
regarding lyds data. Memory intended to be freed is temporarily
not freed and instead waits for an opportunity to use it again.
diff --git a/src/tree_data_internal.h b/src/tree_data_internal.h
index 0e0768b..f7bf216 100644
--- a/src/tree_data_internal.h
+++ b/src/tree_data_internal.h
@@ -399,6 +399,15 @@
void lyd_insert_node(struct lyd_node *parent, struct lyd_node **first_sibling, struct lyd_node *node, ly_bool last);
/**
+ * @brief Insert a node into parent/siblings, either before the 'anchor' or as the last sibling.
+ *
+ * @param[in] parent Parent to insert into, NULL for top-level sibling.
+ * @param[in] first_sibling First sibling, NULL if no top-level sibling exist yet. Can be also NULL if @p parent is set.
+ * @param[in] node Individual node (without siblings) to insert.
+ */
+void lyd_insert_node_ordby_schema(struct lyd_node *parent, struct lyd_node *first_sibling, struct lyd_node *node);
+
+/**
* @brief Unlink the specified data subtree.
*
* @param[in] node Data tree node to be unlinked (together with all the children).