Back to index

glibc  2.9
mbstowcs.c
Go to the documentation of this file.
00001 /* Copyright (C) 1991, 1992, 1996, 1997, 1999 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003 
00004    The GNU C Library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Lesser General Public
00006    License as published by the Free Software Foundation; either
00007    version 2.1 of the License, or (at your option) any later version.
00008 
00009    The GNU C Library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Lesser General Public License for more details.
00013 
00014    You should have received a copy of the GNU Lesser General Public
00015    License along with the GNU C Library; if not, write to the Free
00016    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00017    02111-1307 USA.  */
00018 
00019 #include <stdlib.h>
00020 #include <string.h>
00021 #include <wchar.h>
00022 
00023 
00024 /* Convert the string of multibyte characters in S to `wchar_t's in
00025    PWCS, writing no more than N.  Return the number written,
00026    or (size_t) -1 if an invalid multibyte character is encountered.
00027 
00028    Attention: this function should NEVER be intentionally used.
00029    The interface is completely stupid.  The state is shared between
00030    all conversion functions.  You should use instead the restartable
00031    version `mbsrtowcs'.  */
00032 size_t
00033 mbstowcs (wchar_t *pwcs, const char *s, size_t n)
00034 {
00035   mbstate_t state;
00036 
00037   memset (&state, '\0', sizeof state);
00038   /* Return how many we wrote (or maybe an error).  */
00039   return __mbsrtowcs (pwcs, &s, n, &state);
00040 }