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/*
* Copyright (C) 2015 by Multi-Tech Systems
*
* This file is part of libmts.
*
* libmts is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* libmts 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libmts. If not, see <http://www.gnu.org/licenses/>.
*
*/
/*! \file MTS_AutoPtr.h
\brief An autopointer
\date 15JUN11
\author Sean Godinez
An autopointer.
*/
#ifndef MTS_AUTOPTR_H
#define MTS_AUTOPTR_H
#include <mts/MTS_NonCopyable.h>
#include <mts/MTS_Stdint.h>
namespace MTS {
//! An autopointer
/*!
An autopointer cleans up after itself.
*/
template<class T> class AutoPtr: NonCopyable {
public:
enum MallocType {
SINGLE, ARRAY
};
explicit AutoPtr(T* ptr = 0, MallocType type = SINGLE); //!< Explicitly Constructs the AutoPtr to reference ptr
~AutoPtr(); //!< Destructs the AutoPtr deleting T
T& operator*() const; //!< Returns T
T* operator->() const; //!< Returns address of T
T& operator[](const uint32_t& index) const; //!< Returns T at index
T* get() const; //!< Returns address of T
T* release(); //!< Removes reference to T (does NOT delete T) and returns address
void reset(T* ptr = 0, MallocType type = SINGLE); //!< Deletes old T and assigns internal reference to ptr
bool isNull() const; //!< Returns true if pointer is NULL
private:
T* m_pObj; //!< Reference to class T
MallocType m_eType; //!< Describes memory allocated as a single T or block of Ts
};
template<class T> AutoPtr<T>::AutoPtr(T* ptr, MallocType type)
: m_pObj(ptr), m_eType(type) {
}
template<class T> AutoPtr<T>::~AutoPtr() {
if (m_eType == SINGLE) {
delete m_pObj;
} else {
delete[] m_pObj;
}
}
template<class T> T& AutoPtr<T>::operator*() const {
return *m_pObj;
}
template<class T> T* AutoPtr<T>::operator->() const {
return m_pObj;
}
template<class T> T& AutoPtr<T>::operator[](const uint32_t& index) const {
return m_pObj[index];
}
template<class T> T* AutoPtr<T>::get() const {
return m_pObj;
}
template<class T> T* AutoPtr<T>::release() {
T* temp = m_pObj;
m_pObj = 0;
return temp;
}
template<class T> void AutoPtr<T>::reset(T* ptr, MallocType type) {
T* temp = m_pObj;
m_pObj = ptr;
if (m_eType == SINGLE) {
delete temp;
} else {
delete[] temp;
}
m_eType = type;
}
template<class T> bool AutoPtr<T>::isNull() const {
return (m_pObj == 0);
}
}
#endif
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