more convenient and flexible implementation of dptr;

[web/konrad/chester.git] / dptr_noncopy.h

diff --git a/dptr_noncopy.h b/dptr_noncopy.h
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+++ b/dptr_noncopy.h
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+//d-ptr header
+//
+// (c) Konrad Rosenbaum, 2010-2011
+// Copying and distribution of this file, with or without modification,
+// are permitted in any medium without royalty provided the copyright
+// notice and this notice are preserved.  This file is offered as-is,
+// without any warranty.
+
+#include "dptr_base.h"
+
+
+#ifndef DPTR_NONCOPY_CLASS_H
+#define DPTR_NONCOPY_CLASS_H
+//hide the namespace
+/// \cond never
+namespace Chester_0_1{
+/// \endcond
+
+/** \brief Base class of non-shared d-pointers.
+
+Use in conjunction with DECLARE_NONCOPY_DPTR and DEFINE_NONCOPY_DPTR */
+class NonCopyDPtr
+{
+       public:
+               ///instantiates a non-shared d-pointer
+               NonCopyDPtr(){}
+               ///deletes a non-shared d-pointer
+               virtual ~NonCopyDPtr(){}
+       private:
+               ///hides the copy constructor
+               NonCopyDPtr(const NonCopyDPtr&){}
+               ///hides the assignment operator
+               NonCopyDPtr& operator=(const NonCopyDPtr&){return *this;}
+};
+
+//hide the namespace
+/// \cond never
+};
+using namespace Chester_0_1;
+/// \endcond
+#endif
+
+#ifdef DEFINE_NONCOPY_DPTR
+#undef DEFINE_NONCOPY_DPTR
+#endif
+
+/** \brief Creates definitions for methods of the non-shared, non-copy d-pointer wrapper. 
+
+This variant is not shared between instances of the containing class.
+
+To be used in implementation where the actual d-pointer class is implemented.
+
+\param Class the base class within which the d-pointer was declared*/
+#define DEFINE_NONCOPY_DPTR(Class) \
+ Class::DPrivate::DPrivate(){d=new Class::Private;}\
+ Class::DPrivate::DPrivate(const Class::DPrivate&){}\
+ Class::DPrivate::~DPrivate(){delete d;}\
+ Class::DPrivate& Class::DPrivate::operator=(const Class::DPrivate&)\
+ {return *this;}