glibc/stdlib/mbstowcs.c
Roland McGrath c150923988 Tue Jul 9 09:37:55 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* sysdeps/mach/libc-lock.h: New file.
	* sysdeps/unix/readdir.c: Do locking.
	* sysdeps/unix/seekdir.c: Likewise.
	* sysdeps/unix/rewinddir.c:  Likewise.
	* sysdeps/unix/closedir.c: Likewise.
	* sysdeps/unix/bsd/telldir.c: Likewise.
	* sysdeps/mach/hurd/seekdir.c: Likewise.
	* sysdeps/mach/hurd/readdir.c: Likewise.
	* sysdeps/mach/hurd/closedir.c: Likewise.
	* sysdeps/mach/hurd/opendir.c: Initialize the lock.
	* sysdeps/unix/opendir.c: Likewise.
	* sysdeps/mach/hurd/dirstream.h: Include <libc-lock.h>.
	(struct __dirstream): Add lock member using __libc_lock_define.
	* sysdeps/unix/dirstream.h: Likewise.

	* sysdeps/stub/libc-lock.h (__libc_lock_fini): New macro.

	* stdlib/mbstowcs.c: Pass address of pointer to mbsrtowcs.

	* stdlib/wcstombs.c: Use wcsrtombs instead of mbsrtowcs.

Thu Jul  4 01:34:04 1996  Ulrich Drepper  <drepper@cygnus.com>

	* locale/programs/stringtrans.c: Fix typo in copyright.

	* stdio-common/printf-prs.c: Add casts to prevent
        signed<->unsigned warnings.

	* stdio-common/printf-parse.h: Initialize state variable before
	calling mbrlen.
	* stdio-common/printf-prs.c: Don't initialize state variable here.
	* stdio-common/vfprintf.c: Don't initialize state variable.
	(vfprintf): While determining length of multibyte string don't
	try to be clever in determining characters to use for first
	call.

	Add real implementation of multibyte<->wide char conversion
	functions.  The functions always convert between the fixed wide
	char format (ISO 10646 in UCS4) and the UTF8 representation of
	this character set.  Conversion between the currently used
	8bit character set and ISO 10646 will not take place.  This is
	what iconv() is for.
	* wcsmbs/wchar.h (mbstate_t): Define as structure to replace
	dummy definition.
	Add optimized version of `mbrlen' function.
	* wcsmbs/btowc.c (btowc): Restrict range of legal characters
	to 0...0x7f.
	* wcsmbs/wctob.c (wctob): Restrict range of legal characters
	to 0..0x7f.
	* wcsmbs/mbrlen.c: Make mbrlen a weak alias of __mbrlen.
	This is needed in the wchar.h header.
	* wcsmbs/mbrtowc.c: Replace dummy implementation.  Convert UTF8
	encoded character to UCS4.
	* wcsmbs/mbsinit.c: Replace dummy implementation.  Test COUNT
	element of `mbstate_t' for initial state.
	* wcsmbs/mbsrtowcs.c: Replace dummy implementation.  Convert UTF8
	encoded string to UCS4 string.
	* wcsmbs/wcrtomb.c: Replace dummy implementation.  Convert UCS4
	character to UTF8 encoded form.
	* wcsmbs/wcsrtombs.c: Replace dummy implementation.  Convert UCS4
	encoded string to UTF8 encoded form.
1996-07-09 14:49:13 +00:00

47 lines
1.6 KiB
C

/* Copyright (C) 1991, 1992, 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <stdlib.h>
#include <wchar.h>
extern mbstate_t __no_r_state; /* Defined in mbtowc.c. */
/* Convert the string of multibyte characters in S to `wchar_t's in
PWCS, writing no more than N. Return the number written,
or (size_t) -1 if an invalid multibyte character is encountered.
Attention: this function should NEVER be intentionally used.
The interface is completely stupid. The state is shared between
all conversion functions. You should use instead the restartable
version `mbsrtowcs'. */
size_t
mbstowcs (wchar_t *pwcs, const char *s, size_t n)
{
mbstate_t save_shift = __no_r_state;
size_t written;
written = mbsrtowcs (pwcs, &s, n, &__no_r_state);
/* Restore the old shift state. */
__no_r_state = save_shift;
/* Return how many we wrote (or maybe an error). */
return written;
}