Use auto.

Author: evoskuil

include/bitcoin/database/impl/primitives/hashhead.ipp

@@ -172,8 +172,7 @@ inline bool CLASS::push(const Link& current, bytes& next,
         // xcode clang++16 does not support C++20 std::atomic_ref.
         ////const std::atomic_ref<integer> head(unsafe_byte_cast<integer>(raw));
         auto& head = *pointer_cast<std::atomic<integer>>(raw);
-
-        integer top = head.load(std::memory_order_acquire);
+        auto top = head.load(std::memory_order_acquire);
         do
         {
             // Compiler could order this after head.store, which would expose key