catch empty box ids list

ad-freiburg · May 6, 2024 · 52656e1 · 52656e1
1 parent 06d6e0f
commit 52656e1
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Showing 2 changed files with 4 additions and 1 deletion.
diff --git a/src/spatialjoin/BoxIds.h b/src/spatialjoin/BoxIds.h
@@ -224,6 +224,9 @@ inline std::pair<int32_t, int32_t> boxIdIsect(const BoxIdList& idsA,
   size_t fullContained = 0;
   size_t partContained = 0;
 
+  // catch empty box ids
+  if (idsA.size() < 2 || idsB.size() < 2) return {0, 0};
+
   // shortcuts
   if (abs(idsA[1].first) > abs(idsB.back().first) + idsB.back().second) {
     return {fullContained, partContained};

diff --git a/src/util b/src/util