1 files changed, 76 insertions, 0 deletions
diff --git a/libodb/odb/tr1/wrapper-traits.hxx b/libodb/odb/tr1/wrapper-traits.hxx
new file mode 100644
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+++ b/libodb/odb/tr1/wrapper-traits.hxx
@@ -0,0 +1,76 @@
+// file      : odb/tr1/wrapper-traits.hxx
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_TR1_WRAPPER_TRAITS_HXX
+#define ODB_TR1_WRAPPER_TRAITS_HXX
+
+#include <odb/pre.hxx>
+
+#include <odb/details/config.hxx> // ODB_CXX11
+
+// In VC++ std::shared_ptr and std::tr1::shared_ptr is the same class
+// template. One is just a using-declaration for the other.
+//
+#if !(defined(ODB_CXX11) && defined(_MSC_VER))
+
+//
+// This header assumes that the necessary TR1 header has already
+// been included.
+//
+
+#include <odb/wrapper-traits.hxx>
+
+namespace odb
+{
+  // Specialization for std::tr1::shared_ptr.
+  //
+  template <typename T>
+  class wrapper_traits< std::tr1::shared_ptr<T> >
+  {
+  public:
+    typedef T wrapped_type;
+    typedef std::tr1::shared_ptr<T> wrapper_type;
+
+    // T can be const.
+    //
+    typedef
+    typename odb::details::meta::remove_const<T>::result
+    unrestricted_wrapped_type;
+
+    static const bool null_handler = true;
+    static const bool null_default = false;
+
+    static bool
+    get_null (const wrapper_type& p)
+    {
+      return !p;
+    }
+
+    static void
+    set_null (wrapper_type& p)
+    {
+      p.reset ();
+    }
+
+    static const wrapped_type&
+    get_ref (const wrapper_type& p)
+    {
+      return *p;
+    }
+
+    static unrestricted_wrapped_type&
+    set_ref (wrapper_type& p)
+    {
+      if (!p)
+        p.reset (new unrestricted_wrapped_type);
+
+      return const_cast<unrestricted_wrapped_type&> (*p);
+    }
+  };
+}
+
+#endif // !(ODB_CXX11 && _MSC_VER)
+
+#include <odb/post.hxx>
+
+#endif // ODB_TR1_WRAPPER_TRAITS_HXX