🚀 go-pugleaf

In article <4489:05:14:19@stealth.acf.nyu.edu> brnstnd@stealth.acf.nyu.edu (Dan Bernstein) writes:
>14. Control flow statements, control structures: [ various ]
>
>I have some rather heretical thoughts on this subject. I'll make them
>clear in another message. (Remember that this isn't Ada. Given an
>infinite loop ... endloop, if, and break, you don't need to provide
>a terminating loop as a basic construct. Define it instead as a standard
>macro. Ada's infinite variety of control structures is awful.)

Unconditional loops have a serious problem: you have to read all of the
code inside the loop to find out when (or if) it terminates. Replacing
while and for with loop would be a bad idea. Even providing loop
means that people will use it and stick "end loop" inside the loop
(this happens in ada).

The advantage of a while/for loop is that the terminating condition
(or at least the standard terminating condition) is easy to find.
Then, only exceptional terminating conditions are inside the loop.

			Scott MacHaffie