UniquePtr.h

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//
// Copyright (c) ZeroC, Inc. All rights reserved.
//
 
#ifndef ICE_UNIQUE_PTR_H
#define ICE_UNIQUE_PTR_H
 
#include <Ice/Config.h>
 
namespace IceInternal
{
 
#ifdef ICE_CPP11_MAPPING
 
template<typename T>
using UniquePtr = std::unique_ptr<T>;
 
#else
 
template<typename T>
class UniquePtr
{
public:
 
    explicit UniquePtr(T* ptr = 0) :
        _ptr(ptr)
    {
    }
 
    ~UniquePtr()
    {
        if(_ptr != 0)
        {
            delete _ptr;
        }
    }
 
    T* release()
    {
        T* r = _ptr;
        _ptr = 0;
        return r;
    }
 
    void reset(T* ptr = 0)
    {
        assert(ptr == 0 || ptr != _ptr);
 
        if(_ptr != 0)
        {
            delete _ptr;
        }
        _ptr = ptr;
    }
 
    T& operator*() const
    {
        return *_ptr;
    }
 
    T* operator->() const
    {
        return _ptr;
    }
 
    T* get() const
    {
        return _ptr;
    }
 
    operator bool() const
    {
        return _ptr != 0;
    }
 
    void swap(UniquePtr& a)
    {
        T* tmp = a._ptr;
        a._ptr = _ptr;
        _ptr = tmp;
    }
 
private:
 
    UniquePtr(UniquePtr&);
    UniquePtr& operator=(UniquePtr&);
 
    T* _ptr;
};
 
#endif
 
}
 
#endif