+++ /dev/null
-/*
-Copyright (C) 2001-2006, William Joseph.
-All Rights Reserved.
-
-This file is part of GtkRadiant.
-
-GtkRadiant is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-GtkRadiant is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GtkRadiant; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-*/
-
-#if !defined(INCLUDED_GENERIC_REFERENCECOUNTED_H)
-#define INCLUDED_GENERIC_REFERENCECOUNTED_H
-
-/// \file
-/// \brief 'smart' pointers and references.
-
-#include <algorithm>
-
-template<typename Type>
-class IncRefDecRefCounter
-{
-public:
- void increment(Type& value)
- {
- value.IncRef();
- }
- void decrement(Type& value)
- {
- value.DecRef();
- }
-};
-
-/// \brief A smart-pointer that uses a counter stored in the object pointed-to.
-template<typename Type, typename Counter = IncRefDecRefCounter<Type> >
-class SmartPointer : public Counter
-{
- Type* m_value;
-public:
-
- SmartPointer(const SmartPointer& other)
- : m_value(other.m_value)
- {
- Counter::increment(*m_value);
- }
- explicit SmartPointer(Type* value)
- : m_value(value)
- {
- Counter::increment(*m_value);
- }
- ~SmartPointer()
- {
- Counter::decrement(*m_value);
- }
- SmartPointer& operator=(const SmartPointer& other)
- {
- SmartPointer temp(other);
- temp.swap(*this);
- return *this;
- }
- SmartPointer& operator=(Type* value)
- {
- SmartPointer temp(value);
- temp.swap(*this);
- return *this;
- }
- void swap(SmartPointer& other)
- {
- std::swap(m_value, other.m_value);
- }
-
- operator Type*() const
- {
- return m_value;
- }
- Type& operator*() const
- {
- return *m_value;
- }
- Type* operator->() const
- {
- return m_value;
- }
- Type* get() const
- {
- return m_value;
- }
-};
-
-template<typename Type>
-inline bool operator<(const SmartPointer<Type>& self, const SmartPointer<Type>& other)
-{
- return self.get() < other.get();
-}
-template<typename Type>
-inline bool operator==(const SmartPointer<Type>& self, const SmartPointer<Type>& other)
-{
- return self.get() == other.get();
-}
-template<typename Type>
-inline bool operator!=(const SmartPointer<Type>& self, const SmartPointer<Type>& other)
-{
- return !::operator==(self, other);
-}
-
-namespace std
-{
- /// \brief Swaps the values of \p self and \p other.
- /// Overloads std::swap().
- template<typename Type>
- inline void swap(SmartPointer<Type>& self, SmartPointer<Type>& other)
- {
- self.swap(other);
- }
-}
-
-
-/// \brief A smart-reference that uses a counter stored in the object pointed-to.
-template<typename Type, typename Counter = IncRefDecRefCounter<Type> >
-class SmartReference : public Counter
-{
- Type* m_value;
-public:
-
- SmartReference(const SmartReference& other)
- : m_value(other.m_value)
- {
- Counter::increment(*m_value);
- }
- explicit SmartReference(Type& value)
- : m_value(&value)
- {
- Counter::increment(*m_value);
- }
- ~SmartReference()
- {
- Counter::decrement(*m_value);
- }
- SmartReference& operator=(const SmartReference& other)
- {
- SmartReference temp(other);
- temp.swap(*this);
- return *this;
- }
- SmartReference& operator=(Type& value)
- {
- SmartReference temp(value);
- temp.swap(*this);
- return *this;
- }
- void swap(SmartReference& other)
- {
- std::swap(m_value, other.m_value);
- }
-
- operator Type&() const
- {
- return *m_value;
- }
- Type& get() const
- {
- return *m_value;
- }
- Type* get_pointer() const
- {
- return m_value;
- }
-};
-
-template<typename Type>
-inline bool operator<(const SmartReference<Type>& self, const SmartReference<Type>& other)
-{
- return self.get() < other.get();
-}
-template<typename Type>
-inline bool operator==(const SmartReference<Type>& self, const SmartReference<Type>& other)
-{
- return self.get() == other.get();
-}
-template<typename Type>
-inline bool operator!=(const SmartReference<Type>& self, const SmartReference<Type>& other)
-{
- return !::operator==(self, other);
-}
-
-namespace std
-{
- /// \brief Swaps the values of \p self and \p other.
- /// Overloads std::swap().
- template<typename Type>
- inline void swap(SmartReference<Type>& self, SmartReference<Type>& other)
- {
- self.swap(other);
- }
-}
-
-#endif