goto jumps into loops

[guido at boring.UUCP]

Dave Harmon obviously doesn't know C and didn't bother to test the C
version of his example: it contains i=MAX instead of i==MAX and
while(in(..)) instead of while(!in(...)) -- the latter no doubt stemming
from a slavish translation of Pascal's until <condition>.
Nevertheless, his problem is not one that's solved better with the use
of goto's.  Here's my code (tested -- it didn't need debugging :-).

      wrtlist(s) set *s; {
	int count= 0; /* Counts elements in range currently being printed */
	int e;

	for (e= 0; e <= MAX; ++e) {
		if (in(e, s)) {
			if (count == 0)
				printf(" %d", e);
			++count;
		}
		else {
			if (count > 1) printf("-%d", e-1);
			count= 0;
		}
	}
      }

-- 
	Guido van Rossum, CWI, Amsterdam <guido at mcvax.UUCP>