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authorBoris Kolpackov <boris@codesynthesis.com>2009-09-17 07:15:29 +0200
committerBoris Kolpackov <boris@codesynthesis.com>2009-09-17 07:15:29 +0200
commitf0510d2f90467de8e8f260b47d79a9baaf9bef17 (patch)
tree0b9929946f06a9cbe9b9e8f2a7600dae4e048f79 /libxsd/xsd/cxx/xml/dom/auto-ptr.hxx
Start tracking XSD with git
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+// file : xsd/cxx/xml/dom/auto-ptr.hxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2009 Code Synthesis Tools CC
+// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#ifndef XSD_CXX_XML_DOM_AUTO_PTR_HXX
+#define XSD_CXX_XML_DOM_AUTO_PTR_HXX
+
+namespace xsd
+{
+ namespace cxx
+ {
+ namespace xml
+ {
+ namespace dom
+ {
+ // Simple auto_ptr version that calls release() instead of delete.
+ //
+
+ template <typename T>
+ struct remove_c
+ {
+ typedef T r;
+ };
+
+ template <typename T>
+ struct remove_c<const T>
+ {
+ typedef T r;
+ };
+
+ template <typename T>
+ struct auto_ptr_ref
+ {
+ T* x_;
+
+ explicit
+ auto_ptr_ref (T* x)
+ : x_ (x)
+ {
+ }
+ };
+
+ template <typename T>
+ struct auto_ptr
+ {
+ ~auto_ptr ()
+ {
+ reset ();
+ }
+
+ explicit
+ auto_ptr (T* x = 0)
+ : x_ (x)
+ {
+ }
+
+ auto_ptr (auto_ptr& y)
+ : x_ (y.release ())
+ {
+ }
+
+ template <typename T2>
+ auto_ptr (auto_ptr<T2>& y)
+ : x_ (y.release ())
+ {
+ }
+
+ auto_ptr (auto_ptr_ref<T> r)
+ : x_ (r.x_)
+ {
+ }
+
+ auto_ptr&
+ operator= (auto_ptr& y)
+ {
+ if (x_ != y.x_)
+ reset (y.release ());
+
+ return *this;
+ }
+
+ template <typename T2>
+ auto_ptr&
+ operator= (auto_ptr<T2>& y)
+ {
+ if (x_ != y.x_)
+ reset (y.release ());
+
+ return *this;
+ }
+
+ auto_ptr&
+ operator= (auto_ptr_ref<T> r)
+ {
+ if (r.x_ != x_)
+ reset (r.x_);
+
+ return *this;
+ }
+
+ template <typename T2>
+ operator auto_ptr_ref<T2> ()
+ {
+ return auto_ptr_ref<T2> (release ());
+ }
+
+ template <typename T2>
+ operator auto_ptr<T2> ()
+ {
+ return auto_ptr<T2> (release ());
+ }
+
+ public:
+ T&
+ operator* () const
+ {
+ return *x_;
+ }
+
+ T*
+ operator-> () const
+ {
+ return x_;
+ }
+
+ T*
+ get () const
+ {
+ return x_;
+ }
+
+ T*
+ release ()
+ {
+ T* x (x_);
+ x_ = 0;
+ return x;
+ }
+
+ void
+ reset (T* x = 0)
+ {
+ if (x_)
+ const_cast<typename remove_c<T>::r*> (x_)->release ();
+
+ x_ = x;
+ }
+
+ private:
+ T* x_;
+ };
+ }
+ }
+ }
+}
+
+#endif // XSD_CXX_XML_DOM_AUTO_PTR_HXX