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Re: Genx

Re:  Genx

jcowan wrote:

> I have argued privately that wchar_t is in fact the Right Thing here
> despite its variability in size (UTF-32 on Unix platforms,

Depends on the flavor of Unix; I've seen Unices with
sizeof(wchar_t) == 1, 2, and 4.

Also, few of them even state explicitly what encoding(s) are 
used for multibyte or wide characters.  EUC and Shift-JIS 
are the only multibyte encodings I've seen explicitly mentioned;
most manpages don't even say that much.

> UTF-16 on
> Windows), because it makes genx compatible with both standardized and
> non-standardized facilities, most especially "..."L strings.  Some
> conditional logic will be needed to interpret the input as UTF-16 or
> UTF-32, which can be based on sizeof(wchar_t).

It might not be either one.  On most Unices, the interpretation
of wchar_t characters depends on how the LANG and LC_* environment
variables are set (determined at runtime!)

> Hypothetical platforms
> where sizeof(wchar_t) == 1 can be neglected.

These aren't hypothetical -- I've seen one!  It's now defunct,
but still...  (sizeof(wchar_t) == 1 is actually a pretty good
design choice for certain types of systems.)

--Joe English


  • Follow-Ups:
    • Re: Genx
      • From: "Karl Waclawek" <karl@w...>
    • Re: Genx
      • From: Rich Salz <rsalz@d...>
  • References:
    • Re: Genx
      • From: jcowan@r...
    • Genx
      • From: Tim Bray <tbray@t...>
    • Re: Genx
      • From: Joe English <jenglish@f...>


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