stl map key 为指针时delete指针的问题

struct cmp_str

{

	bool operator()(const TCHAR *a, const TCHAR *b) const

	{

		return _tcscmp(a, b) < 0;

	}

};



typedef std::map<const TCHAR*, int, cmp_str> TESTMAP



const TCHAR* ch1 = new TCHAR[_tcslen(_T("one")) + 1];

const TCHAR* ch2 = new TCHAR[_tcslen(_T("two")) + 1];

const TCHAR* ch3 = new TCHAR[_tcslen(_T("three")) + 1];

const TCHAR* ch4 = new TCHAR[_tcslen(_T("four")) + 1];

const TCHAR* ch5 = new TCHAR[_tcslen(_T("five")) + 1];



_tcsncpy(ch1, _T("one"), (_tcslen(_T("one")) + 1) * sizeof(TCHAR));

_tcsncpy(ch1, _T("two"), (_tcslen(_T("two")) + 1) * sizeof(TCHAR));

_tcsncpy(ch1, _T("three"), (_tcslen(_T("three")) + 1) * sizeof(TCHAR));

_tcsncpy(ch1, _T("four"), (_tcslen(_T("four")) + 1) * sizeof(TCHAR));

_tcsncpy(ch1, _T("five"), (_tcslen(_T("five")) + 1) * sizeof(TCHAR));



TESTMAP mapper;



mapper[ch1] = 1;

mapper[ch2] = 2;

mapper[ch3] = 3;

mapper[ch4] = 4;

mapper[ch5] = 5;



/*     do what you want     */



delete []ch1;

delete []ch2;

delete []ch3;

delete []ch4;

delete []ch5;