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Re: invalid universal character gives error even after #if 0

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On 2022-08-31, Siri Cruise <chine.bleu@yahoo.com> wrote:
> In article <temv38$kie6$1@solani.org>,
>  Philipp Klaus Krause <pkk@spth.de> wrote:
>
>> By a quick look at the standard it seems to me that the constraint on 
>> universal character names would be treated the same as e.g. the 
>> constraint on constants having a type and the value being in the 
>> representable range. But I don't think anyone would expect an error on a 
>> long sequence of digits inside an #if 0.
>
> Doctor! Doctor! It hurts when I do this.
>
> Then stop doing it.

Indeed.

I believe that universal characters in identifiers are akin to ANSI
trigraphs. You're not supposed to code with them.

If you're using internationalzed identifiers, use UTF-8
and a compiler which handles that:

  int 倍(int 引)
  {
     return 引 * 2;
  }

What universal character names allow you to do is encode the above
UTF-8 program into 7 bit ASCII. Just like trigraphs allow a 7 bit
ASCII program to be encoded into 6 bit ISO-646.

If you're doing this automatic encoding, you would never generate
a bad universal character name.

It would hurt when you do that, so you would fix your encoder
not to do it.

-- 
TXR Programming Language: http://nongnu.org/txr
Cygnal: Cygwin Native Application Library: http://kylheku.com/cygnal

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invalid universal character gives error even after #if 0 Philipp Klaus Krause <pkk@spth.de> - 2022-08-31 08:28 +0200
  Re: invalid universal character gives error even after #if 0 Kaz Kylheku <480-992-1380@kylheku.com> - 2022-08-31 06:52 +0000
    Re: invalid universal character gives error even after #if 0 Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-09-13 07:52 -0700
  Re: invalid universal character gives error even after #if 0 Siri Cruise <chine.bleu@yahoo.com> - 2022-08-31 02:13 -0700
    Re: invalid universal character gives error even after #if 0 Kaz Kylheku <480-992-1380@kylheku.com> - 2022-08-31 16:51 +0000
      Re: invalid universal character gives error even after #if 0 Siri Cruise <chine.bleu@yahoo.com> - 2022-08-31 10:57 -0700
  Re: invalid universal character gives error even after #if 0 Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-09-13 07:54 -0700

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