Path: news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail
From: Michael S <already5chosen@yahoo.com>
Newsgroups: comp.lang.c
Subject: Re: Loops (was Re: do { quit; } else { })
Date: Wed, 16 Apr 2025 17:37:21 +0300
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On Wed, 16 Apr 2025 14:09:44 GMT
scott@slp53.sl.home (Scott Lurndal) wrote:

> bart <bc@freeuk.com> writes:
> >On 15/04/2025 20:07, Scott Lurndal wrote:  
> >> bart <bc@freeuk.com> writes:  
> >>> On 15/04/2025 14:19, Kaz Kylheku wrote:  
> >>   
> >>> Thats's fine. But it means a real 'for' loop doesn't exist in C;
> >>> you have to emulate it using that 3-way construct, which is naff,
> >>> and also error prone.  
> >> 
> >> Real for loops _are_ a three-way construct.
> >> 
> >> 135 FOR I=1 TO 10 STEP 2                              [BASIC]
> >> 
> >>      for(i = 1; i < 11; i += 2)                        [C/C++]
> >> 
> >>      do 1 = 1, 10, 2                                   [FORTRAN]  
> >
> >Any step other than 1 is unusual. So Basic and Fortran would
> >typically be:
> >
> >     for i = 1 to 10     # 6 tokens; Basic
> >     do  i = 1, 10       # 6 tokens; Fortran
> >     for i = 1, 10       # 6 tokens; Lua
> >     for i to 10 do      # 5 tokens; Mine (using default start)
> >     to 10 do            # 3 tokens; Mine (when index is not needed)
> >
> >Let's look at that C again:
> >
> >     for (int i = 1; i < 11; i += 1)  # 15 tokens; C
> >  
> 
> 
>   for(i = 1; i++ <= 10;)

I'd reject this code during review.
Hopefully, you too.