wprintf anybody?

[Brian Dessent]

Corinna Vinschen wrote:

> while we're at it, multibyte/wide chars and all, I just found that it
> would be helpful to have the wprintf family of functions, and possibly
> related stuff like fputwc, fputws, fgetwc, fgetws and fwide.  Is anybody
> here interested in adding this to Cygwin or, FWIW, newlib?

I had a tentative spot on my TODO to simply audit Cygwin+newlib for the
current state of C99 wchar_t support, and make a list of what all is
missing.  I have a feeling it's a lot, but I agree that low hanging
fruit like wprintf would be a good idea to have.  I'm sure that
libstdc++ could benefit from this, since at the moment I think it has
all wide character support disabled due to no underlying libc support.

Oh and that reminds me... There is this little gem in syscalls.cc:

/* FIXME: to do this right, maybe work out the usoft va_list machine
   and use wsvprintfW instead?
*/
extern "C" int
wprintf (const char *fmt, ...)
{
  va_list ap;
  int ret;

  va_start (ap, fmt);
  ret = vprintf (fmt, ap);
  va_end (ap);
  return ret;
}

Naturally, we never exported this function so it didn't cause any
damage.  But from what I can tell from a dig through the ChangeLogs,
this little guy dates back to at least 1996, and he's just been sitting
there doing nothing and being useless the whole time.

Brian