87275e436a
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.
87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/*-
|
|
* Copyright (c) 2002-2004 Tim J. Robbins.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "namespace.h"
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <wchar.h>
|
|
#include "un-namespace.h"
|
|
#include "libc_private.h"
|
|
#include "local.h"
|
|
|
|
/*
|
|
* Non-MT-safe version.
|
|
*/
|
|
wint_t
|
|
__fputwc(wchar_t wc, FILE *fp)
|
|
{
|
|
char buf[MB_LEN_MAX];
|
|
size_t i, len;
|
|
|
|
if (MB_CUR_MAX == 1 && wc > 0 && wc <= UCHAR_MAX) {
|
|
/*
|
|
* Assume single-byte locale with no special encoding.
|
|
* A more careful test would be to check
|
|
* _CurrentRuneLocale->encoding.
|
|
*/
|
|
*buf = (unsigned char)wc;
|
|
len = 1;
|
|
} else {
|
|
if ((len = wcrtomb(buf, wc, &fp->_extra->mbstate)) ==
|
|
(size_t)-1) {
|
|
fp->_flags |= __SERR;
|
|
return (WEOF);
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < len; i++)
|
|
if (__sputc((unsigned char)buf[i], fp) == EOF)
|
|
return (WEOF);
|
|
|
|
return ((wint_t)wc);
|
|
}
|
|
|
|
/*
|
|
* MT-safe version.
|
|
*/
|
|
wint_t
|
|
fputwc(wchar_t wc, FILE *fp)
|
|
{
|
|
wint_t r;
|
|
|
|
FLOCKFILE(fp);
|
|
ORIENT(fp, 1);
|
|
r = __fputwc(wc, fp);
|
|
FUNLOCKFILE(fp);
|
|
|
|
return (r);
|
|
}
|