forked from KolibriOS/kolibrios
245 lines
6.6 KiB
C
245 lines
6.6 KiB
C
/*-
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* Copyright (c) 2002-2004 Tim J. Robbins.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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FUNCTION
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<<fputwc>>, <<putwc>>, <<fputwc_unlocked>>, <<putwc_unlocked>>---write a wide character on a stream or file
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INDEX
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fputwc
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INDEX
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fputwc_unlocked
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INDEX
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_fputwc_r
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INDEX
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_fputwc_unlocked_r
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INDEX
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putwc
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INDEX
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putwc_unlocked
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INDEX
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_putwc_r
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INDEX
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_putwc_unlocked_r
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ANSI_SYNOPSIS
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#include <stdio.h>
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#include <wchar.h>
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wint_t fputwc(wchar_t <[wc]>, FILE *<[fp]>);
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <wchar.h>
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wint_t fputwc_unlocked(wchar_t <[wc]>, FILE *<[fp]>);
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#include <stdio.h>
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#include <wchar.h>
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wint_t _fputwc_r(struct _reent *<[ptr]>, wchar_t <[wc]>, FILE *<[fp]>);
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#include <stdio.h>
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#include <wchar.h>
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wint_t _fputwc_unlocked_r(struct _reent *<[ptr]>, wchar_t <[wc]>, FILE *<[fp]>);
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#include <stdio.h>
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#include <wchar.h>
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wint_t putwc(wchar_t <[wc]>, FILE *<[fp]>);
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <wchar.h>
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wint_t putwc_unlocked(wchar_t <[wc]>, FILE *<[fp]>);
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#include <stdio.h>
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#include <wchar.h>
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wint_t _putwc_r(struct _reent *<[ptr]>, wchar_t <[wc]>, FILE *<[fp]>);
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#include <stdio.h>
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#include <wchar.h>
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wint_t _putwc_unlocked_r(struct _reent *<[ptr]>, wchar_t <[wc]>, FILE *<[fp]>);
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TRAD_SYNOPSIS
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#include <stdio.h>
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#include <wchar.h>
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wint_t fputwc(<[wc]>, <[fp]>)
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wchar_t <[wc]>;
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FILE *<[fp]>;
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <wchar.h>
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wint_t fputwc_unlocked(<[wc]>, <[fp]>)
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wchar_t <[wc]>;
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FILE *<[fp]>;
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#include <stdio.h>
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#include <wchar.h>
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wint_t _fputwc_r(<[ptr]>, <[wc]>, <[fp]>)
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struct _reent *<[ptr]>;
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wchar_t <[wc]>;
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FILE *<[fp]>;
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#include <stdio.h>
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#include <wchar.h>
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wint_t _fputwc_unlocked_r(<[ptr]>, <[wc]>, <[fp]>)
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struct _reent *<[ptr]>;
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wchar_t <[wc]>;
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FILE *<[fp]>;
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#include <stdio.h>
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#include <wchar.h>
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wint_t putwc(<[wc]>, <[fp]>)
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wchar_t <[wc]>;
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FILE *<[fp]>;
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#define _GNU_SOURCE
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#include <stdio.h>
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#include <wchar.h>
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wint_t putwc_unlocked(<[wc]>, <[fp]>)
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wchar_t <[wc]>;
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FILE *<[fp]>;
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#include <stdio.h>
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#include <wchar.h>
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wint_t _putwc_r(<[ptr]>, <[wc]>, <[fp]>)
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struct _reent *<[ptr]>;
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wchar_t <[wc]>;
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FILE *<[fp]>;
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#include <stdio.h>
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#include <wchar.h>
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wint_t _putwc_unlocked_r(<[ptr]>, <[wc]>, <[fp]>)
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struct _reent *<[ptr]>;
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wchar_t <[wc]>;
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FILE *<[fp]>;
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DESCRIPTION
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<<fputwc>> writes the wide character argument <[wc]> to the file or
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stream identified by <[fp]>.
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If the file was opened with append mode (or if the stream cannot
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support positioning), then the new wide character goes at the end of the
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file or stream. Otherwise, the new wide character is written at the
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current value of the position indicator, and the position indicator
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oadvances by one.
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<<fputwc_unlocked>> is a non-thread-safe version of <<fputwc>>.
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<<fputwc_unlocked>> may only safely be used within a scope
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protected by flockfile() (or ftrylockfile()) and funlockfile(). This
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function may safely be used in a multi-threaded program if and only
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if they are called while the invoking thread owns the (FILE *)
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object, as is the case after a successful call to the flockfile() or
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ftrylockfile() functions. If threads are disabled, then
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<<fputwc_unlocked>> is equivalent to <<fputwc>>.
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The <<putwc>> and <<putwc_unlocked>> functions or macros function identically
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to <<fputwc>> and <<fputwc_unlocked>>. They may be implemented as a macro, and
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may evaluate its argument more than once. There is no reason ever to use them.
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The <<_fputwc_r>>, <<_putwc_r>>, <<_fputwc_unlocked_r>>, and
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<<_putwc_unlocked_r>> functions are simply reentrant versions of the above
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that take an additional reentrant structure argument: <[ptr]>.
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RETURNS
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If successful, <<fputwc>> and <<putwc>> return their argument <[wc]>.
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If an error intervenes, the result is <<EOF>>. You can use
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`<<ferror(<[fp]>)>>' to query for errors.
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PORTABILITY
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<<fputwc>> and <<putwc>> are required by C99 and POSIX.1-2001.
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<<fputwc_unlocked>> and <<putwc_unlocked>> are GNU extensions.
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*/
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#include <_ansi.h>
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#include <reent.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <wchar.h>
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#include "local.h"
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wint_t
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_DEFUN(__fputwc, (ptr, wc, fp),
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struct _reent *ptr _AND
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wchar_t wc _AND
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FILE *fp)
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{
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char buf[MB_LEN_MAX];
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size_t i, len;
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if (MB_CUR_MAX == 1 && wc > 0 && wc <= UCHAR_MAX)
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{
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/*
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* Assume single-byte locale with no special encoding.
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* A more careful test would be to check
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* _CurrentRuneLocale->encoding.
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*/
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*buf = (unsigned char)wc;
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len = 1;
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}
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else
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{
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if ((len = _wcrtomb_r (ptr, buf, wc, &fp->_mbstate)) == (size_t) -1)
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{
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fp->_flags |= __SERR;
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return WEOF;
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}
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}
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for (i = 0; i < len; i++)
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if (__sputc_r (ptr, (unsigned char) buf[i], fp) == EOF)
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return WEOF;
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return (wint_t) wc;
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}
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wint_t
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_DEFUN(_fputwc_r, (ptr, wc, fp),
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struct _reent *ptr _AND
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wchar_t wc _AND
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FILE *fp)
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{
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wint_t r;
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_newlib_flockfile_start (fp);
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ORIENT(fp, 1);
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r = __fputwc(ptr, wc, fp);
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_newlib_flockfile_end (fp);
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return r;
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}
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wint_t
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_DEFUN(fputwc, (wc, fp),
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wchar_t wc _AND
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FILE *fp)
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{
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struct _reent *reent = _REENT;
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CHECK_INIT(reent, fp);
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return _fputwc_r (reent, wc, fp);
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}
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