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Diffstat (limited to 'newlib/libc/stdio/fgetwc.c')
| -rw-r--r-- | newlib/libc/stdio/fgetwc.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/newlib/libc/stdio/fgetwc.c b/newlib/libc/stdio/fgetwc.c deleted file mode 100644 index 0f7cf0fca..000000000 --- a/newlib/libc/stdio/fgetwc.c +++ /dev/null @@ -1,180 +0,0 @@ -/*- - * 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. - */ - -/* -FUNCTION -<<fgetwc>>, <<getwc>>---get a wide character from a file or stream - -INDEX - fgetwc -INDEX - _fgetwc_r -INDEX - getwc -INDEX - _getwc_r - -ANSI_SYNOPSIS - #include <stdio.h> - #include <wchar.h> - wint_t fgetwc(FILE *<[fp]>); - - #include <stdio.h> - #include <wchar.h> - wint_t _fgetwc_r(struct _reent *<[ptr]>, FILE *<[fp]>); - - #include <stdio.h> - #include <wchar.h> - wint_t getwc(FILE *<[fp]>); - - #include <stdio.h> - #include <wchar.h> - wint_t _getwc_r(struct _reent *<[ptr]>, FILE *<[fp]>); - -TRAD_SYNOPSIS - #include <stdio.h> - #include <wchar.h> - wint_t fgetwc(<[fp]>) - FILE *<[fp]>; - - #include <stdio.h> - #include <wchar.h> - wint_t _fgetwc_r(<[ptr]>, <[fp]>) - struct _reent *<[ptr]>; - FILE *<[fp]>; - - #include <stdio.h> - #include <wchar.h> - wint_t getwc(<[fp]>) - FILE *<[fp]>; - - #include <stdio.h> - #include <wchar.h> - wint_t _getwc_r(<[ptr]>, <[fp]>) - struct _reent *<[ptr]>; - FILE *<[fp]>; - -DESCRIPTION -Use <<fgetwc>> to get the next wide character from the file or stream -identified by <[fp]>. As a side effect, <<fgetwc>> advances the file's -current position indicator. - -The <<getwc>> function or macro functions identically to <<fgetwc>>. It -may be implemented as a macro, and may evaluate its argument more than -once. There is no reason ever to use it. - -<<_fgetwc_r>> and <<_getwc_r>> are simply reentrant versions of -<<fgetwc>> and <<getwc>> that are passed the additional reentrant -structure pointer argument: <[ptr]>. - -RETURNS -The next wide character cast to <<wint_t>>), unless there is no more data, -or the host system reports a read error; in either of these situations, -<<fgetwc>> and <<getwc>> return <<WEOF>>. - -You can distinguish the two situations that cause an <<EOF>> result by -using the <<ferror>> and <<feof>> functions. - -PORTABILITY -C99, POSIX.1-2001 -*/ - -#include <_ansi.h> -#include <reent.h> -#include <errno.h> -#include <stdio.h> -#include <stdlib.h> -#include <wchar.h> -#include "local.h" - -static wint_t -_DEFUN(__fgetwc, (ptr, fp), - struct _reent *ptr _AND - register FILE *fp) -{ - wchar_t wc; - size_t nconv; - - if (fp->_r <= 0 && __srefill_r (ptr, fp)) - return (WEOF); - if (MB_CUR_MAX == 1) - { - /* Fast path for single-byte encodings. */ - wc = *fp->_p++; - fp->_r--; - return (wc); - } - do - { - nconv = _mbrtowc_r (ptr, &wc, fp->_p, fp->_r, &fp->_mbstate); - if (nconv == (size_t)-1) - break; - else if (nconv == (size_t)-2) - continue; - else if (nconv == 0) - { - /* - * Assume that the only valid representation of - * the null wide character is a single null byte. - */ - fp->_p++; - fp->_r--; - return (L'\0'); - } - else - { - fp->_p += nconv; - fp->_r -= nconv; - return (wc); - } - } - while (__srefill_r(ptr, fp) == 0); - fp->_flags |= __SERR; - errno = EILSEQ; - return (WEOF); -} - -wint_t -_DEFUN(_fgetwc_r, (ptr, fp), - struct _reent *ptr _AND - register FILE *fp) -{ - wint_t r; - - _flockfile (fp); - ORIENT(fp, 1); - r = __fgetwc (ptr, fp); - _funlockfile (fp); - return r; -} - -wint_t -_DEFUN(fgetwc, (fp), - FILE *fp) -{ - CHECK_INIT(_REENT, fp); - return _fgetwc_r (_REENT, fp); -} |