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-rw-r--r--src/common/parent_of_member.h3
-rw-r--r--src/common/tree.h2
2 files changed, 3 insertions, 2 deletions
diff --git a/src/common/parent_of_member.h b/src/common/parent_of_member.h
index e0f8ab5c8..58c70b0e7 100644
--- a/src/common/parent_of_member.h
+++ b/src/common/parent_of_member.h
@@ -109,7 +109,8 @@ struct OffsetOfCalculator {
}
}
- return (next - start) * sizeof(MemberType) + Offset;
+ return static_cast<ptrdiff_t>(static_cast<size_t>(next - start) * sizeof(MemberType) +
+ Offset);
}
static constexpr std::ptrdiff_t OffsetOf(MemberType ParentType::*member) {
diff --git a/src/common/tree.h b/src/common/tree.h
index 3da49e422..9d2d0df4e 100644
--- a/src/common/tree.h
+++ b/src/common/tree.h
@@ -322,7 +322,7 @@ void RB_INSERT_COLOR(RBHead<Node>* head, Node* elm) {
template <typename Node>
void RB_REMOVE_COLOR(RBHead<Node>* head, Node* parent, Node* elm) {
Node* tmp;
- while ((elm == nullptr || RB_IS_BLACK(elm)) && elm != head->Root()) {
+ while ((elm == nullptr || RB_IS_BLACK(elm)) && elm != head->Root() && parent != nullptr) {
if (RB_LEFT(parent) == elm) {
tmp = RB_RIGHT(parent);
if (RB_IS_RED(tmp)) {