Cleaning up after an exception

[John E]

Suppose my function needs to re-throw an exception - but it needs to clean up before doing so. The obvious solution is somehting like this....

HRESULT MyFunc()
{
	// Declare lots of pointers
	char*	p1 = NULL;
	char*	p2 = NULL;
	char*	p3 = NULL;
	char*	p4 = NULL;

	try
	{
		// Whatever...
	}
	catch ( MyException  )
	{
		// Clean up after caught exception
		if (NULL != p1)
			delete [] p1;

		if (NULL != p2)
			delete [] p2;
		
		if (NULL != p3)
			delete [] p3;
		
		if (NULL != p4)
			delete [] p4;

		// Re-throw the exception
		throw;
	}
	
	// Clean up after normal execution
	if (NULL != p1)
		delete [] p1;

	if (NULL != p2)
		delete [] p2;
	
	if (NULL != p3)
		delete [] p3;
	
	if (NULL != p4)
		delete [] p4;

	// and return normally
	return ERROR_SUCCESS;
}

However, the above strategy requires 2 lots of cleanup code (something I'm always loathe to do because I've found it to be a common cause of programming errors).

Is there a better strategy? - i.e. one that requires only 1 block of cleanup code, regardless of whether an exception occured or not?