ScopedArray.h

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//
// Copyright (c) ZeroC, Inc. All rights reserved.
//
 
#ifndef ICE_UTIL_SCOPED_ARRAY_H
#define ICE_UTIL_SCOPED_ARRAY_H
 
#include <IceUtil/Config.h>
 
#ifndef ICE_CPP11_MAPPING
 
//
// Only for the C++98 mapping
//
 
namespace IceUtil
{
 
template<typename T>
class ScopedArray
{
public:
 
    explicit ScopedArray(T* ptr = 0) :
        _ptr(ptr)
    {
    }
 
    ScopedArray(const ScopedArray& other)
    {
        _ptr = other._ptr;
        const_cast<ScopedArray&>(other)._ptr = 0;
    }
 
    ~ScopedArray()
    {
        if(_ptr != 0)
        {
            delete[] _ptr;
        }
    }
 
    void reset(T* ptr = 0)
    {
        assert(ptr == 0 || ptr != _ptr);
        if(_ptr != 0)
        {
            delete[] _ptr;
        }
        _ptr = ptr;
    }
 
    ScopedArray& operator=(const ScopedArray& other)
    {
        if(_ptr != 0)
        {
            delete[] _ptr;
        }
        _ptr = other._ptr;
        const_cast<ScopedArray&>(other)._ptr = 0;
        return *this;
    }
 
    T& operator[](size_t i) const
    {
        assert(_ptr != 0);
        assert(i >= 0);
        return _ptr[i];
    }
 
    T* get() const
    {
        return _ptr;
    }
 
    void swap(ScopedArray& a)
    {
        T* tmp = a._ptr;
        a._ptr = _ptr;
        _ptr = tmp;
    }
 
    T* release()
    {
        T* tmp = _ptr;
        _ptr = 0;
        return tmp;
    }
 
private:
 
    T* _ptr;
};
 
} // End of namespace IceUtil
 
#endif
#endif