From 0f25b194dcbcfa95a80284069999dd92341ce36d Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Thu, 1 Mar 2012 12:34:41 +0200
Subject: Add support for using C++11 std::unique_ptr to pass connection
 factory

---
 odb/details/transfer-ptr.hxx | 54 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 odb/details/transfer-ptr.hxx

diff --git a/odb/details/transfer-ptr.hxx b/odb/details/transfer-ptr.hxx
new file mode 100644
index 0000000..e7ad42c
--- /dev/null
+++ b/odb/details/transfer-ptr.hxx
@@ -0,0 +1,54 @@
+// file      : odb/details/transfer-ptr.hxx
+// copyright : Copyright (c) 2009-2012 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_DETAILS_TRANSFER_PTR_HXX
+#define ODB_DETAILS_TRANSFER_PTR_HXX
+
+#include <odb/pre.hxx>
+
+#include <memory> // std::auto_ptr, std::unique_ptr
+
+#include <odb/details/config.hxx> // ODB_CXX11
+
+namespace odb
+{
+  namespace details
+  {
+    template <typename T>
+    class transfer_ptr
+    {
+    public:
+      typedef T element_type;
+
+      transfer_ptr (): p_ (0) {}
+
+      template <typename T1>
+      transfer_ptr (std::auto_ptr<T1> p): p_ (p.release ()) {}
+
+#ifdef ODB_CXX11
+      transfer_ptr (std::nullptr_t): p_ (0) {}
+
+      template <typename T1>
+      transfer_ptr (std::unique_ptr<T1>&& p): p_ (p.release ()) {}
+#endif
+
+      ~transfer_ptr () {delete p_;}
+
+      T*
+      transfer ()
+      {
+        T* r (p_);
+        p_ = 0;
+        return r;
+      }
+
+    private:
+      T* p_;
+    };
+  }
+}
+
+#include <odb/post.hxx>
+
+#endif // ODB_DETAILS_TRANSFER_PTR_HXX
-- 
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