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From: James Kuyper <jameskuyper@alumni.caltech.edu>
Newsgroups: comp.lang.c
Subject: Re: Loops (was Re: do { quit; } else { })
Date: Tue, 15 Apr 2025 22:37:30 -0400
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On 2025-04-15, bart <bc@freeuk.com> wrote:
> Note that C's for-loop is dumb; it merely take three expressions A B C 
> that can be completely unrelated, and arranges them into a loop:
>
>    A; while (B) {...; C}
Note that this problem is not unique to the for() statement. An
assignment statement allows you to arrange three unrelated expressions
together like

A = B + C;

"Doctor, it hurts when I hit my head with a hammer!"
"Then stop doing that."

The key to using the for() statement is to make sure the three
expressions are related appropriately. Many different powerful and
useful ways of using a for() statement have been shown in this thread
that are not equivalent to for(int i=start; i<end; i += increment).
Individually, those uses aren't particularly common, but collectively
I've needed each of those uses often enough to be grateful that C has
such a flexible construct to do it with.