Re: conditional macro definition also for recursive conditionally limited expansion

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From	Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups	comp.std.c
Subject	Re: conditional macro definition also for recursive conditionally limited expansion
Date	Wed, 19 Jan 2022 06:53:55 -0800
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Marco Munari <allerta.it@gmail.com> writes:

> On Monday, January 17, 2022 at 4:51:12 PM UTC+1, Tim Rentsch wrote:
>
>> Marco Munari <aller...@gmail.com> writes:
>>
>>> [conditional / recursive macro expansion]
>>
>> It's an interesting idea.  There are details that need to be
>> explored and understood first.  Also I think it would be better
>> if expanded and generalized, perhaps along the lines of 'cond'
>> in lisp, or alternatively with ?# :# as preprocessing if/else.
>> Hmmm...
>
> I'm favorable to any changes to the syntax I proposed,

I don't mean to suggest any specific changes, just throwing
out ideas.

> You mentioned lisp, yes and why not lisp... I mean even lisp
> syntax!  [...]

I think it would be hard to integrate lisp syntax into C's
lexical environment.  Technically it might be feasible, but
there are also human factors to consider, and those look
rather daunting.

> Interesting also your concise syntax ?# :# (or maybe you
> meant ... #? ... #: ...  [...]

It was just a casual suggestion.  Obviously there are lots
of details to consider before settling on specifics.

Good luck!

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conditional macro definition also for recursive conditionally limited expansion Marco Munari <allerta.it@gmail.com> - 2022-01-09 16:52 -0800
  Re: conditional macro definition also for recursive conditionally limited expansion James Kuyper <jameskuyper@alumni.caltech.edu> - 2022-01-10 00:48 -0500
    Re: conditional macro definition also for recursive conditionally limited expansion Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-01-17 07:13 -0800
  Re: conditional macro definition also for recursive conditionally limited expansion Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-01-17 07:51 -0800
    Re: conditional macro definition also for recursive conditionally limited expansion Marco Munari <allerta.it@gmail.com> - 2022-01-18 04:24 -0800
      Re: conditional macro definition also for recursive conditionally limited expansion Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-01-19 06:53 -0800

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