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[glibc.git] / stdlib / wcstombs.c
blob0c650903661e4b976b574369b5e7846fbd2f8681
1 /* Copyright (C) 1991,1992,1995,1996,1997,1999 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
19 #include <stdlib.h>
20 #include <string.h>
21 #include <wchar.h>
24 /* Convert the `wchar_t' string in PWCS to a multibyte character string
25 in S, writing no more than N characters. Return the number of bytes
26 written, or (size_t) -1 if an invalid `wchar_t' was found. */
27 size_t
28 wcstombs (char *s, const wchar_t *pwcs, size_t n)
30 mbstate_t state;
32 memset (&state, '\0', sizeof state);
34 /* Return how many we wrote (or maybe an error). */
35 return __wcsrtombs (s, &pwcs, n, &state);