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diff --git a/libodb-qt/odb/qt/smart-ptr/pointer-traits.hxx b/libodb-qt/odb/qt/smart-ptr/pointer-traits.hxx
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+// file : odb/qt/smart-ptr/pointer-traits.hxx
+// license : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_QT_SMART_PTR_POINTER_TRAITS_HXX
+#define ODB_QT_SMART_PTR_POINTER_TRAITS_HXX
+
+#include <odb/pre.hxx>
+
+#include <QtCore/QSharedPointer>
+#include <QtCore/QWeakPointer>
+
+#include <odb/pointer-traits.hxx>
+#include <odb/details/meta/remove-const.hxx>
+
+namespace odb
+{
+ // Specialization for QSharedPointer.
+ //
+ template <typename T>
+ class pointer_traits<QSharedPointer<T> >
+ {
+ public:
+ static const pointer_kind kind = pk_shared;
+ static const bool lazy = false;
+
+ typedef T element_type;
+ typedef QSharedPointer<element_type> pointer_type;
+ typedef QSharedPointer<const element_type> const_pointer_type;
+ typedef typename odb::details::meta::remove_const<element_type>::result
+ unrestricted_element_type;
+ typedef QSharedPointer<unrestricted_element_type>
+ unrestricted_pointer_type;
+ typedef smart_ptr_guard<pointer_type> guard;
+
+ static element_type*
+ get_ptr (const pointer_type& p)
+ {
+ return p.data ();
+ }
+
+ static element_type&
+ get_ref (const pointer_type& p)
+ {
+ return *p;
+ }
+
+ static bool
+ null_ptr (const pointer_type& p)
+ {
+ return !p;
+ }
+
+ static unrestricted_pointer_type
+ const_pointer_cast (const pointer_type& p)
+ {
+ return qSharedPointerConstCast<unrestricted_element_type> (p);
+ }
+
+ template <typename T1>
+ static QSharedPointer<T1>
+ static_pointer_cast (const pointer_type& p)
+ {
+ return qSharedPointerCast<T1> (p);
+ }
+
+ template <typename T1>
+ static QSharedPointer<T1>
+ dynamic_pointer_cast (const pointer_type& p)
+ {
+ return qSharedPointerDynamicCast<T1> (p);
+ }
+
+ public:
+ static void*
+ allocate (std::size_t n)
+ {
+ return operator new (n);
+ }
+
+ static void
+ free (void* p)
+ {
+ operator delete (p);
+ }
+ };
+
+ // Specialization for QWeakPointer.
+ //
+ template <typename T>
+ class pointer_traits<QWeakPointer<T> >
+ {
+ public:
+ static const pointer_kind kind = pk_weak;
+ static const bool lazy = false;
+
+ typedef T element_type;
+ typedef QWeakPointer<element_type> pointer_type;
+ typedef QSharedPointer<element_type> strong_pointer_type;
+
+ static strong_pointer_type
+ lock (const pointer_type& p)
+ {
+ return p.toStrongRef ();
+ }
+ };
+}
+
+#include <odb/post.hxx>
+
+#endif // ODB_QT_SMART_PTR_POINTER_TRAITS_HXX