ut_vector.h

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: ut_vector.h,v 1.1.1.1.36.3 2004/07/09 01:48:25 hubbe Exp $
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#ifndef UT_VECTOR_H
#define UT_VECTOR_H

template <class T>
class UTVector
{
public:
    UTVector();
    UTVector(int i);
    ~UTVector();

    void Resize(int newSize);
    int Nelements() const;

    T& operator[](int i);
    const T& operator[](int i) const;

private:
    UTVector(const UTVector<T>& rhs);
    UTVector& operator=(const UTVector<T>& rhs);

    T* m_pVec;
    int m_size;
};


template <class T>
inline
UTVector<T>::UTVector() :
    m_pVec(0),
    m_size(0)
{}

template <class T>
inline
UTVector<T>::UTVector(int size) :
    m_pVec(new T[size]),
    m_size(size)
{}

template <class T>
inline
UTVector<T>::~UTVector()
{
    delete [] m_pVec;
    m_pVec = 0;
}

template <class T>
inline
void UTVector<T>::Resize(int newSize)
{
    if (newSize != m_size)
    {
	T* pNewVec = new T[newSize];
	
	int numToCopy = (newSize > m_size) ? m_size : newSize;

	for (int i = 0; i < numToCopy; i++)
	{
	    pNewVec[i] = m_pVec[i];
	}

	m_size = newSize;
	delete [] m_pVec;
	m_pVec = pNewVec;
    }
}

template <class T>
inline
int UTVector<T>::Nelements() const
{
    return m_size;
}

template <class T>
inline
T& UTVector<T>::operator[](int i)
{
    return m_pVec[i];
}

template <class T>
inline
const T& UTVector<T>::operator[](int i) const
{
    return m_pVec[i];
}

#endif /* UT_VECTOR_H */