# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1661910188 25200
# Node ID 8483c685cf03fdea1e3a39af69085b8bd969ce0b
# Parent  4e27c36f947c65803ff3fde5effdff02ff65e945
Allow tern_foreach on an empty (NULL) ternary tree

diff -r 4e27c36f947c -r 8483c685cf03 tern.c
--- a/tern.c	Tue Aug 30 18:42:45 2022 -0700
+++ b/tern.c	Tue Aug 30 18:43:08 2022 -0700
@@ -286,6 +286,9 @@
 
 void tern_foreach(tern_node *head, iter_fun fun, void *data)
 {
+	if (!head) {
+		return;
+	}
 	//lame, but good enough for my purposes
 	char key[MAX_ITER_KEY+1];
 	tern_foreach_int(head, fun, data, key, 0);