From bc47246d3c18f52f3e5609bcf5135296090bc26b Mon Sep 17 00:00:00 2001
From: Haijun Yu <yuhj@zetyun.com>
Date: Thu, 20 Jun 2024 18:00:50 +0800
Subject: [PATCH] Fix memory index assert crash. use  build_memory_index.cpp .
 we add and delete vector found assert crash.

assert position index.cpp :2646
assert(_empty_slots.size() + _nd == _max_points);
---
 src/index.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/index.cpp b/src/index.cpp
index bf93344fa..8b470b9e3 100644
--- a/src/index.cpp
+++ b/src/index.cpp
@@ -1554,6 +1554,12 @@ void Index<T, TagT, LabelT>::build_with_data_populated(const std::vector<TagT> &
         if (pool.size() < 2)
             cnt++;
     }
+
+    _empty_slots.clear();
+    for (size_t i = _nd; _data_compacted && i < _max_points; i++)
+    {
+        _empty_slots.insert(i);
+    }
     diskann::cout << "Index built with degree: max:" << max << "  avg:" << (float)total / (float)(_nd + _num_frozen_pts)
                   << "  min:" << min << "  count(deg<2):" << cnt << std::endl;