tree: replace-tree-iter function.

* tree.c (replace_tree_iter): New function.
(tree_init): Register replace-tree-iter intrinsic.

* tree.h (tree_init): Declared.

* share/txr/stdlib/doc-syms.tl: Updated.

* txr.1: Documented.

* tests/010/tree.tl: New test case.

1 files changed, 1 insertions, 0 deletions

diff --git a/tree.h b/tree.h
index 72ee43db..7b045f1a 100644
--- a/tree.h
+++ b/tree.h
@@ -51,6 +51,7 @@ val tree_delete(val tree, val key);
 val tree_begin(val tree);
 val tree_begin_at(val tree, val lowkey);
 val copy_tree_iter(val iter);
+val replace_tree_iter(val diter, val siter);
 val tree_reset(val iter, val tree);
 val tree_reset_at(val iter, val tree, val lowkey);
 val tree_next(val iter);