Re: problem with c_regex_traits.cpp

From: René Gutschmidt (yg-boost-users_at_[hidden])
Date: 2002-06-03 07:17:23

>> i have problems with the file c_regex_traits.cpp. I work under CodeWarrior
>> 6/7 with a Macintosh.
>> These problem ist with boost 1.25.1,1.26.
>> 
>> template <class charT>
>> unsigned int BOOST_REGEX_CALL re_get_message(charT* buf, unsigned int
>> len, unsigned int id)
>> {
>>     unsigned int size = _re_get_message((char*)0, 0, id);
>>     if(len < size)
>>         return size;
>>     boost::scoped_array<char> cb(new char[size]);
>>     _re_get_message(cb.get(), size, id);
>>     size = boost::c_regex_traits<wchar_t>::strwiden(buf, len, cb.get());
>>     return size;
>> }
>> 
>> inline unsigned int BOOST_REGEX_CALL re_get_message(char* buf, unsigned
>> int len, unsigned int id)
>> {
>>     return _re_get_message(buf, len, id);
>> }
>> 
>> Is that a known problem? Do you know a workaround?
>> (Renaming one of the 're_get_message()' functions does
>> the job, but I'm not sure about the implications.)
> 
> I've had a chance to experiment a little with this - if BOOST_NO_WREGEX is
> defined (i.e. wide character support is disabled), then removing the
> template version of re_get_message is harmless (and may therefore be the fix
> that you are looking for).  If BOOST_NO_WREGEX is not defined, then
> obviously this won't work - so that being the case, what happens if you
> surround the definition of
> 
> template <class charT>
> unsigned int BOOST_REGEX_CALL re_get_message(charT* buf, unsigned int len,
> unsigned int id)
> 
> with
> 
> #ifndef BOOST_NO_WREGEX
> ...
> #endif
> 
> regards,
> 
> John Maddock

Sorry, but I haven't had a chance to answer.

Ok it's works. But I need 'wide character support' much later.

best regards,

Rene Gutschmidt