fix the issue of memory misalignment during the HNSW assignment proce…

…ss (#263) Signed-off-by: jinjiabao.jjb <[email protected]> Co-authored-by: jinjiabao.jjb <[email protected]>
antgroup · Dec 26, 2024 · b579572 · b579572
1 parent 94f1b02
commit b579572
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/algorithm/hnswlib/hnswalg.h b/src/algorithm/hnswlib/hnswalg.h
@@ -155,7 +155,9 @@ class HierarchicalNSW : public AlgorithmInterface<float> {
 
     inline void
     setExternalLabel(InnerIdType internal_id, LabelType label) const {
-        *(LabelType*)(data_level0_memory_->GetElementPtr(internal_id, label_offset_)) = label;
+        std::memcpy(data_level0_memory_->GetElementPtr(internal_id, label_offset_),
+                    &label,
+                    sizeof(LabelType));
     }
 
     inline LabelType*