glibc/wcsmbs/wcslen.c

/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>

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 <wchar.h>


/* Copy SRC to DEST.  */
size_t
wcslen (s)
     const wchar_t *s;
{
  size_t len = 0;

  while (s[len] != L'\0')
    {
      if (s[++len] == L'\0')
	return len;
      if (s[++len] == L'\0')
	return len;
      if (s[++len] == L'\0')
	return len;
      ++len;
    }

  return len;
}