1 files changed, 43 insertions, 0 deletions
diff --git a/libodb/odb/tr1/lazy-ptr.txx b/libodb/odb/tr1/lazy-ptr.txx
new file mode 100644
index 0000000..7e36cd9
--- /dev/null
+++ b/libodb/odb/tr1/lazy-ptr.txx
@@ -0,0 +1,43 @@
+// file      : odb/tr1/lazy-ptr.txx
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+namespace odb
+{
+  namespace tr1
+  {
+    //
+    // lazy_shared_ptr
+    //
+
+    template <class T>
+    template <class Y>
+    bool lazy_shared_ptr<T>::
+    equal (const lazy_shared_ptr<Y>& r) const
+    {
+      bool t1 (!p_ == loaded ());
+      bool t2 (!r.p_ == r.loaded ());
+
+      // If both are transient, then compare the underlying pointers.
+      //
+      if (t1 && t2)
+        return p_ == r.p_;
+
+      // If one is transient and the other is persistent, then compare
+      // the underlying pointers but only if they are non NULL. Note
+      // that an unloaded persistent object is always unequal to a
+      // transient object.
+      //
+      if (t1 || t2)
+        return p_ == r.p_ && p_;
+
+      // If both objects are persistent, then we compare databases and
+      // object ids.
+      //
+      typedef typename object_traits<T>::object_type object_type1;
+      typedef typename object_traits<Y>::object_type object_type2;
+
+      return i_.database () == r.i_.database () &&
+        object_id<object_type1> () == r.template object_id<object_type2> ();
+    }
+  }
+}