CODE 1:

BOOL errorHappened = NO;
do
{
	// do some code
	if (errorHappens)
	{
		errorHappened = YES;
		break;
	}
	// do more stuff
	if (errorHappens)
	{
		errorHappened = YES;
		break;
	}
	// etc
} while (0);

if (errorHappened)
	// do error handling

// do "finally" cleanup

CODE 2:

// do some code
if (errorHappens) goto reportError;
// do more stuff
if (errorHappens) goto reportError;
// etc
goto finally;

reportError:
	// do error handling
finally:
	// do "finally" cleanup