!1744 Fix Codex

Merge pull request !1744 from JesseKLee/btree_fix

mindspore/ccsrc/dataset/util/btree.h

@@ -252,8 +252,8 @@ class BPlusTree {
 
     ~InnerNode() = default;
 
-    slot_type slot_dir_[traits::kInnerSlots];
-    key_type keys_[traits::kInnerSlots];
+    slot_type slot_dir_[traits::kInnerSlots] = {0};
+    key_type keys_[traits::kInnerSlots] = {0};
     BaseNode *data_[traits::kInnerSlots + 1] = {nullptr};
     uint64_t num_keys_[traits::kInnerSlots + 1] = {0};
     slot_type slotuse_;
@@ -282,8 +282,8 @@ class BPlusTree {
 
     ~LeafNode() = default;
 
-    slot_type slot_dir_[traits::kLeafSlots];
-    key_type keys_[traits::kLeafSlots];
+    slot_type slot_dir_[traits::kLeafSlots] = {0};
+    key_type keys_[traits::kLeafSlots] = {0};
     std::unique_ptr<value_type> data_[traits::kLeafSlots];
     slot_type slotuse_;
   };

mindspore/ccsrc/dataset/util/btree_impl.tpp

@@ -42,6 +42,9 @@ typename BPlusTree<K, V, A, C, T>::IndexRc BPlusTree<K, V, A, C, T>::InnerNode::
       // Swap the key
       std::swap(keys_[j], keys_[i]);
       // Swap the pointers.
+      if ((j + 1) >= traits::kInnerSlots + 1 || (i + 1) >= traits::kInnerSlots + 1) {
+        return IndexRc::kUnexpectedError;
+      }
       std::swap(data_[j + 1], data_[i + 1]);
       // one key in order.
       inverse[j] = j;
@@ -131,6 +134,9 @@ typename BPlusTree<K, V, A, C, T>::IndexRc BPlusTree<K, V, A, C, T>::LeafNode::S
       slot_type j = inverse[i];
       slot_type k = inverse[j];
       // Swap the key
+      if (j >= traits::kLeafSlots || i >= traits::kLeafSlots) {
+        return IndexRc::kUnexpectedError;
+      }
       std::swap(keys_[j], keys_[i]);
       // Swap the shared pointers
       std::swap(data_[j], data_[i]);