Rework pointer traits, add naked, auto_ptr, and TR1 specializations

1 files changed, 74 insertions, 0 deletions

diff --git a/odb/tr1-pointer-traits.hxx b/odb/tr1-pointer-traits.hxx
new file mode 100644
index 0000000..edb5ce8
--- /dev/null
+++ b/odb/tr1-pointer-traits.hxx
@@ -0,0 +1,74 @@
+// file      : odb/tr1-pointer-traits.hxx
+// author    : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2009-2010 Code Synthesis Tools CC
+// license   : GNU GPL v2; see accompanying LICENSE file
+
+#ifndef ODB_TR1_POINTER_TRAITS_HXX
+#define ODB_TR1_POINTER_TRAITS_HXX
+
+#include <odb/pre.hxx>
+
+// This header assumes that the necessary TR1 header has already
+// been included.
+//
+#include <odb/pointer-traits.hxx>
+
+namespace odb
+{
+  // Specialization for std::tr1::shared_ptr.
+  //
+  template <typename T>
+  class pointer_traits< std::tr1::shared_ptr<T> >
+  {
+  public:
+    typedef T element_type;
+    typedef std::tr1::shared_ptr<element_type> pointer_type;
+    typedef smart_ptr_guard<pointer_type> guard_type;
+
+    static element_type*
+    get_ptr (const pointer_type& p)
+    {
+      return p.get ();
+    }
+
+    static element_type&
+    get_ref (const pointer_type& p)
+    {
+      return *p;
+    }
+
+    static bool
+    null_ptr (const pointer_type& p)
+    {
+      return p.get () == 0;
+    }
+
+  public:
+    static void*
+    allocate (std::size_t n)
+    {
+      return operator new (n);
+    }
+
+    static void
+    free (void* p)
+    {
+      operator delete (p);
+    }
+  };
+
+  // Specialization for std::tr1::weak_ptr.
+  //
+  template <typename T>
+  class pointer_traits< std::tr1::weak_ptr<T> >
+  {
+  public:
+    typedef T element_type;
+    typedef std::tr1::weak_ptr<element_type> pointer_type;
+    typedef std::tr1::shared_ptr<element_type> strong_pointer_type;
+  };
+}
+
+#include <odb/post.hxx>
+
+#endif // ODB_TR1_POINTER_TRAITS_HXX