On Feb 2 14:24, Eric Blake wrote: > [dropping coreutils at this point] > > On 02/02/2011 04:29 AM, Bruno Haible wrote: > > Good point. I agree then that overriding wchar_t should better not be > > done. > > > > Here's a new proposal: > > - Define a type 'wwchar_t' on all platforms, equivalent to uint32_t > > on Windows platforms and to 'wchar_t' otherwise. > > - Define functions 'mbrtowwc', 'iswwalpha', 'wwcwidth', and similar. > > Their definition will be a trivial redirection to 'mbrtowc', 'iswalpha', > > 'wcwidth' on most platforms, and a use of libunistring modules on > > Windows platforms. > > I like the idea of making a new type wrapper. > > Are you thinking of making a sane wrapping around either 4-byte wchar_t > or which maps to 2-byte wchar_t but sanely handles UTF-16 (which makes > it a thin wrapper on both Linux and Cygwin, but needing more work on > mingw), or are you thinking that it is always a 4-byte type (needing > lots more memory manipulation on cygwin to convert between 2- and 4-byte > representations when using cygwin's functions, or else reimplementing > everything from scratch by completely bypassing cygwin)? > > As to the name: I agree the opinion of others that xchar_t is easier to > type and easier to avoid typos of a missing 'w' than wwchar_t. On the > other hand, I can see wwprintf that takes wide-wchar_t values, but > gnulib already has xprintf as a counterpart to xmalloc (which calls > exit() if the printf fails for memory allocation or other non-I/O > related reasons), so we can't blindly use 'x' instead of 'ww' when > replacing existing 'w' in POSIX APIs.
May I suggest a compromise? What about "xwchar_t"? It avoids the potential typo by accidentally dropping the second w. It still contains "wchar" which implies that it's a *wide* char type. And the x could be read as "extended". Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
