Exception Handling IV: try/catch a switch?

[David Hough]

try/catch is a sort of like a switch.  Maybe if it were more so, the
problems with labels I mentioned previously would go away, e.g. a
somewhat different syntax for the example I have been using:

	__eswitch__ (r = d1/d) {
	case FE_INVALID: /* invalid division 0/0 or inf/inf detected */
		if (d1 == 0) {	/* f1 = (0/0)*inf so return infinity */
			f1 = q;
		} else {	/* f1 = (inf/inf)*0 so return "p" */
			f1 = (1.0 + f1j2) * b[j + 2] / b[j + 1];
		}
		break;		/* instead of goto... */
	default:	/* unexceptional case */
		f1 = -r * q;
		break;
	}

Maybe that's an improvement:  an __eswitch__ is like a switch, except the
cases are cases of exceptions rather than cases of expression values..