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diff --git a/include/pdb/handle.hpp b/include/pdb/handle.hpp
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+// Copyright (c) 2017 Egor Tensin <Egor.Tensin@gmail.com>
+// This file is part of the "PDB repository" project.
+// For details, see https://github.com/egor-tensin/pdb-repo.
+// Distributed under the MIT License.
+
+#pragma once
+
+#include <Windows.h>
+
+#include <cassert>
+
+#include <memory>
+
+namespace pdb
+{
+    struct CloseHandle
+    {
+        void operator()(HANDLE raw) const
+        {
+            if (raw == NULL || raw == INVALID_HANDLE_VALUE)
+                return;
+            const auto ret = ::CloseHandle(raw);
+            assert(ret);
+            UNREFERENCED_PARAMETER(ret);
+        }
+    };
+
+    typedef std::unique_ptr<void, CloseHandle> Handle;
+}