/* Copy piece of UTF-8/UTF-16/UTF-32 string.

   Copyright (C) 1999, 2002, 2006-2007, 2009-2022 Free Software Foundation,

   Inc.

   Written by Bruno Haible <bruno@clisp.org>, 2002.

   This file is free software.

   It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".

   You can redistribute it and/or modify it under either

     - the terms of the GNU Lesser General Public License as published

       by the Free Software Foundation; either version 3, or (at your

       option) any later version, or

     - the terms of the GNU General Public License as published by the

       Free Software Foundation; either version 2, or (at your option)

       any later version, or

     - the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".

   This file 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

   Lesser General Public License and the GNU General Public License

   for more details.

   You should have received a copy of the GNU Lesser General Public

   License and of the GNU General Public License along with this

   program.  If not, see <https://www.gnu.org/licenses/>.  */

#include <stdlib.h>

#include <string.h>

UNIT *

FUNC (const UNIT *s, size_t n)

{

  UNIT *dest;

  dest = (UNIT *) malloc (n > 0 ? n * sizeof (UNIT) : 1);

  if (dest != NULL)

    {

#if 0

      UNIT *destptr = dest;

      for (; n > 0; n--)

        *destptr++ = *s++;

#else

      if (n > 0)

        memcpy ((char *) dest, (const char *) s, n * sizeof (UNIT));

#endif

    }

  return dest;

}