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From b3622608433c183ba868a1dc8dd9cf285eb3b916 Mon Sep 17 00:00:00 2001
From: Dario Petrillo <dario.pk1@gmail.com>
Date: Thu, 27 Nov 2025 23:12:38 +0100
Subject: [PATCH] avoid extra memset when clearing an empty table
---
include/ankerl/unordered_dense.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/include/ankerl/unordered_dense.h b/include/ankerl/unordered_dense.h
index 0835342..4938212 100644
--- a/include/ankerl/unordered_dense.h
+++ b/include/ankerl/unordered_dense.h
@@ -1490,8 +1490,10 @@ class table : public std::conditional_t<is_map_v<T>, base_table_type_map<T>, bas
// modifiers //////////////////////////////////////////////////////////////
void clear() {
- m_values.clear();
- clear_buckets();
+ if (!empty()) {
+ m_values.clear();
+ clear_buckets();
+ }
}
auto insert(value_type const& value) -> std::pair<iterator, bool> {