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[rt.cpan.org #121464] Compile fails with "error: expected identifierbefore string constant" from /CORE/unicode_constants.h

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From:
Petr Pisar via RT
Date:
June 7, 2017 15:05
Subject:
[rt.cpan.org #121464] Compile fails with "error: expected identifierbefore string constant" from /CORE/unicode_constants.h
Message ID:
rt-4.0.18-18097-1496847908-1744.121464-15-0@rt.cpan.org
Wed Jun 07 11:05:07 2017: Request 121464 was acted upon.
Transaction: Correspondence added by ppisar
       Queue: Wx
     Subject: Compile fails with "error: expected identifier before string constant" from /CORE/unicode_constants.h
   Broken in: (no value)
    Severity: (no value)
       Owner: Nobody
  Requestors: KENTNL@cpan.org
      Status: open
 Ticket <URL: https://rt.cpan.org/Ticket/Display.html?id=121464 >


Dne St 07.čen.2017 10:46:19, ppisar napsal(a):
> Dne Ne 30.dub.2017 05:37:28, KENTNL napsal(a):
> > In file included from
> > /home/kent/perl5/perlbrew/perls/5.25.12-nossp-sip13-nopmc-
> > nodot/lib/5.25.12/x86_64-linux/CORE/utf8.h:30:0,
> > from
> > /home/kent/perl5/perlbrew/perls/5.25.12-nossp-sip13-nopmc-
> > nodot/lib/5.25.12/x86_64-linux/CORE/regexp.h:21,
> > from
> > /home/kent/perl5/perlbrew/perls/5.25.12-nossp-sip13-nopmc-
> > nodot/lib/5.25.12/x86_64-linux/CORE/perl.h:3914,
> > from ../../cpp/wxapi.h:57,
> > from RichText.c:23:
> > /home/kent/perl5/perlbrew/perls/5.25.12-nossp-sip13-nopmc-
> > nodot/lib/5.25.12/x86_64-linux/CORE/unicode_constants.h:72:22:
> > error: expected identifier before string constant
> > # define BOM_UTF8 "\xEF\xBB\xBF" /* U+FEFF */
> > ^
> > /usr/include/wx-2.8/wx/convauto.h:54:9: note: in expansion of macro
> > ‘BOM_UTF8’
> > BOM_UTF8
> > ^
> 
> /usr/include/wx-2.8/wx/convauto.h Wx header file defines BOM_UTF8 enum
> value:
> 
> class WXDLLIMPEXP_BASE wxConvAuto : public wxMBConv
> {
> private:
>     // all currently recognized BOM values
>     enum BOMType
>        {
>         BOM_None,
>         BOM_UTF32BE,
>         BOM_UTF32LE,
>         BOM_UTF16BE,
>         BOM_UTF16LE,
>         BOM_UTF8
>     };
> }
> 
> While Perl's CORE/unicode_constants.h defines a same-named macro:
> 
> #   define BOM_UTF8  "\xEF\xBB\xBF"    /* U+FEFF */
> 
> String literals cannot be enum values.

Because BOM_UTF8 belongs to public Perl API and it's private to Wx, I think Wx should rename it.

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