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From: Kaz Kylheku <643-408-1753@kylheku.com>
Newsgroups: comp.lang.c
Subject: Re: Loops (was Re: do { quit; } else { })
Date: Mon, 21 Apr 2025 03:16:06 -0000 (UTC)
Organization: A noiseless patient Spider
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Message-ID: <20250420200823.908@kylheku.com>
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On 2025-04-20, bart <bc@freeuk.com> wrote:
> But the thing is, once you split it into multiple lines, then there is 
> little advantage over using a regular 'while' loop:

The advantage may be little, but there is some.

>        p = sqliteHashFirst(&pSchema->trigHash);
>        while (p != NULL)
>        {
>            sqlite3DeleteTrigger(db, (Trigger*)sqliteHashData(p));
>            p = sqliteHashNext(p) )
>        }

- In a while loop, if you "continue", it will jump to the top of
  the loop, without executing the step.

- The loop controls are not gathered in one place.

- Because they are not gathered in one place, not only is it less
  readable, but we cannot use while write a macro such as:

     for_sqlite_hash (p, &pSchema->trigHash) {
       if (some_condition_over(p))
         continue; // doesn't stupidly repeat for the same p!
     }

-- 
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