C / C++ / MFC

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extern "C" _CRTIMP int __cdecl _CrtIsValidHeapPointer(
        const void * pUserData
        )
{
        if (!pUserData)
            return FALSE;
 
        if (!_CrtIsValidPointer(pHdr(pUserData), sizeof(_CrtMemBlockHeader), FALSE))
            return FALSE;
 
        return HeapValidate( _crtheap, 0, pHdr(pUserData) );
}

std::shared_ptr<int> foo()
{
	std::shared_ptr<int> p(new int(10));
	size_t cnt = 10;
	while (cnt--)
		p.get()[cnt] = roll_die();
 
	return p;                   
}
 
void func(int* ptr, size_t cnt)
{
	while (cnt--)
	{
		cout << ptr[cnt] << endl;
	}
}
 
void main()
{
	std::shared_ptr<int> u_ptr = nullptr;
	u_ptr = foo();
	func(u_ptr.get(), 10);
}

std::unique_ptr<int> foo()
{
	std::unique_ptr<int> p(new int(10));
	size_t cnt = 10;
	while (cnt--)
		p.get()[cnt] = roll_die();
 
	return p;                   
}
 
void func(int* ptr, size_t cnt)
{
	while (cnt--)
	{
		cout << ptr[cnt] << endl;
	}
}
 
void main()
{
	std::unique_ptr<int> u_ptr = nullptr;
	u_ptr = foo();
	func(u_ptr.get(), 10);
}

inline LONG CRegKey::QueryValue(LPTSTR szValue, LPCTSTR lpszValueName, DWORD* pdwCount)
{
	ATLASSERT(pdwCount != NULL);
	DWORD dwType = NULL;
	LONG lRes = RegQueryValueEx(m_hKey, (LPTSTR)lpszValueName, NULL, &dwType,
		(LPBYTE)szValue, pdwCount);
	ATLASSERT((lRes!=ERROR_SUCCESS) || (dwType == REG_SZ) ||
			 (dwType == REG_MULTI_SZ) || (dwType == REG_EXPAND_SZ));
	return lRes;
}