xptr.h

来自「频谱分析仪Frequency Analyzer」· C头文件 代码 · 共 44 行

#if !defined XPTR_H
#define XPTR_H

template <class T>
class XPtr
{
public:
    ~XPtr () { delete _p; }
    T* Acquire ()
    {
        T * pTmp = _p;
        _p = 0;
        return pTmp;
    }
    T * operator->() { return _p; }
    T const & GetAccess () const { return *_p; }
protected:
    // protected constructors
    XPtr (): _p (0) {}
    XPtr (T* p): _p (p) {}

    T * _p;
};

template <class T>
class XArray
{
public:
	XArray (int size)
		: _arr (new T [size]) {}
	~XArray () { delete []_arr; }
	T * Acquire ()
	{
		T * aTmp = _arr;
		_arr = 0;
		return aTmp;
	}
	T const & operator [] (int i) const { return _arr [i]; }
	T& operator [] (int i) { return _arr [i]; }
protected:
	T * _arr;
};

#endif