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-rw-r--r--src/node.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/node.c b/src/node.c
index 8de46ea..8b107bc 100644
--- a/src/node.c
+++ b/src/node.c
@@ -436,7 +436,7 @@ cmark_node_unlink(cmark_node *node) {
int
cmark_node_insert_before(cmark_node *node, cmark_node *sibling)
{
- if (!S_can_contain(node->parent, sibling)) {
+ if (!node->parent || !S_can_contain(node->parent, sibling)) {
return 0;
}
@@ -467,7 +467,7 @@ cmark_node_insert_before(cmark_node *node, cmark_node *sibling)
int
cmark_node_insert_after(cmark_node *node, cmark_node *sibling)
{
- if (!S_can_contain(node->parent, sibling)) {
+ if (!node->parent || !S_can_contain(node->parent, sibling)) {
return 0;
}