From e16a3d503c2cfff2f80882739b84c28f74ed798b Mon Sep 17 00:00:00 2001
From: Michele Caini <michele.caini@gmail.com>
Date: Thu, 31 Jan 2019 22:40:08 +0100
Subject: [PATCH] simplified sparse_set::clone

---
 src/entt/entity/sparse_set.hpp | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/src/entt/entity/sparse_set.hpp b/src/entt/entity/sparse_set.hpp
index c43d25492..0ae3bccc3 100644
--- a/src/entt/entity/sparse_set.hpp
+++ b/src/entt/entity/sparse_set.hpp
@@ -477,12 +477,7 @@ public:
      * @return A fresh copy of the given sparse set.
      */
     virtual std::unique_ptr<sparse_set> clone() const {
-        auto other = std::make_unique<sparse_set>();
-        other->reverse.resize(reverse.size());
-        other->direct.resize(direct.size());
-        std::copy(reverse.cbegin(), reverse.cend(), other->reverse.begin());
-        std::copy(direct.cbegin(), direct.cend(), other->direct.begin());
-        return other;
+        return std::make_unique<sparse_set>(*this);
     }
 
 private: