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From: Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups: comp.lang.c
Subject: Re: After doing a lot of the problems on codingbat.com
Date: Thu, 02 Apr 2020 19:22:00 -0700
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Xref: csiph.com comp.lang.c:150969

Bart <bc@freeuk.com> writes:

> On 27/02/2020 19:41, James Kuyper wrote:
>
>> On Thursday, February 27, 2020 at 12:02:53 PM UTC-5, Anton Shepelev wrote:
>>
>>> chad:
>>>
>>>> I've come to this horrible realization that I don't
>>>> understand a for loop as well as what I thought I did.
>>>
>>> Just don't abuse the for loop, cramping all kinds of
>>> unrelated code into its control expressions. ...
>>
>> I'm in full agreement with that.
>>
>>> ... Always use\
>>> it as a loop with a counter:
>>
>> But I can't agree that there's anything wrong with using any of the
>> following constructs:
>>
>> for(unsigned mask = 0x8000; mask;  mask >>=1)
>>
>> for(Node* node=head; node;  node = node->next)
>>
>> The first three user-controlled parts of a for-statement should be
>> reserved for loop-control, but there's many different ways to handle
>> loop control.
>
>     unsigned mask = 0x8000h
>     while (mask) {
>         body;
>         mask >>= 1;
>     }
>
>     Node * node = head;
>     while (node) {
>         body;
>         node = node->next;
>     }

It appears someone has a severe case of Old Dog syndrome.