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9 Commits

Author SHA1 Message Date
Tim J. Robbins
f9ceea9bf1 Call __mbrtowc() and __wcrtomb() directly instead of taking detours 
through mbrtowc() and wcrtomb().
 2004-07-20 08:27:27 +00:00
Tim J. Robbins
87275e436a Associate a multibyte conversion state object with each stream. Reset it 
to the initial state when a stream is opened or seeked upon. Use the
stream's conversion state object instead of a freshly-zeroed one in
fgetwc(), fputwc() and ungetwc().

This is only a performance improvement for now, but it would also be
required in order to support state-dependent encodings.
 2004-05-22 15:19:41 +00:00
Tim J. Robbins
93996f6d58 Prepare to handle trivial state-dependent encodings. Full support for 
state-dependent encodings with locking shifts will come later if there
is demand for it.
 2004-04-07 09:55:05 +00:00
Tim J. Robbins
a27a4b3690 Pass mbrtowc() and wcrtomb() NULL instead of a pointer to a freshly zeroed 
mbstate_t object that they ignore. The zeroing is fairly expensive, and it
will never be necessary in these functions; when we support state-dependent
encodings, we will pass in a pointer to the file's mbstate_t object, and
only zero it at the time the file gets opened.
 2003-11-04 11:05:55 +00:00
Tim J. Robbins
6180233fd8 Set the error bit on the stream if an encoding error occurs. Improve 
handling of multibyte sequences representing null wide characters.
 2002-10-16 12:09:43 +00:00
Tim J. Robbins
5f147b57ac Add an unlocked version of ungetwc(), __ungetwc(), that __vfwscanf() 
will need to use.
 2002-09-22 05:59:00 +00:00
Tim J. Robbins
9260341650 Lock and unlock the file once per call and use the unlocked version of 
ungetc() instead of having ungetc() recurse on the lock.
 2002-09-20 13:23:26 +00:00
Tim J. Robbins
24990dfad0 Reimplement the functionality of fgetrune(), fputrune(), and fungetrune() 
here in terms of mbrtowc(), wcrtomb(), and the single-byte I/O functions.
The rune I/O functions are about to become deprecated in favour of the
ones provided by ISO C90 Amd. 1 and C99.
 2002-09-18 05:58:11 +00:00
Tim J. Robbins
e74101e4ef Basic support for wide character I/O: getwc(), fgetwc(), getwchar(), 
putwc(), fputwc(), putwchar(), ungetwc(), fwide().
 2002-08-13 09:30:41 +00:00