1 /* Look at first character in UTF-16 string.
2 Copyright (C) 1999-2000, 2002, 2006-2007 Free Software Foundation, Inc.
3 Written by Bruno Haible <bruno@clisp.org>, 2002.
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of the GNU Library General Public License as published
7 by the Free Software Foundation; either version 2, or (at your option)
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with this program; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
26 u16_strmbtouc (ucs4_t *puc, const uint16_t *s)
28 /* Keep in sync with utf16-ucs4.h and utf16-ucs4.c. */
31 if (c < 0xd800 || c >= 0xe000)
34 return (c != 0 ? 1 : 0);
36 #if CONFIG_UNICODE_SAFETY
40 #if CONFIG_UNICODE_SAFETY
41 if (s[1] >= 0xdc00 && s[1] < 0xe000)
46 *puc = 0x10000 + ((c - 0xd800) << 10) + (s[1] - 0xdc00);
50 /* invalid or incomplete multibyte character */