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/* Count characters in UTF-16 string.
Copyright (C) 2007 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2007.
This program 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, or (at your option)
any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
USA. */
#include <config.h>
/* Specification. */
#include "unistr.h"
size_t
u16_mbsnlen (const uint16_t *s, size_t n)
{
size_t characters;
characters = 0;
while (n > 0)
{
int count = u16_mblen (s, n);
if (count <= 0)
count = 1;
s += count;
n -= count;
characters++;
}
return characters;
}
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