/* Copyright (C) 2001-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Ulrich Drepper <drepper@cygnus.com>, 2001.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 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

   Lesser General Public License for more details.

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

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <errno.h>

#include <iconv.h>

#include <mcheck.h>

#include <stddef.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

static int

do_test (void)

{

  char buf[3];

  const wchar_t wc[1] = L"a";

  iconv_t cd;

  char *inptr;

  size_t inlen;

  char *outptr;

  size_t outlen;

  size_t n;

  int e;

  int result = 0;

  mtrace ();

  cd = iconv_open ("UCS4", "WCHAR_T");

  if (cd == (iconv_t) -1)

    {

      printf ("cannot convert from wchar_t to UCS4: %m\n");

      exit (1);

    }

  inptr = (char *) wc;

  inlen = sizeof (wchar_t);

  outptr = buf;

  outlen = 3;

  n = iconv (cd, &inptr, &inlen, &outptr, &outlen);

  e = errno;

  if (n != (size_t) -1)

    {

      printf ("incorrect iconv() return value: %zd, expected -1\n", n);

      result = 1;

    }

  if (e != E2BIG)

    {

      printf ("incorrect error value: %s, expected %s\n",

	      strerror (e), strerror (E2BIG));

      result = 1;

    }

  if (inptr != (char *) wc)

    {

      puts ("inptr changed");

      result = 1;

    }

  if (inlen != sizeof (wchar_t))

    {

      puts ("inlen changed");

      result = 1;

    }

  if (outptr != buf)

    {

      puts ("outptr changed");

      result = 1;

    }

  if (outlen != 3)

    {

      puts ("outlen changed");

      result = 1;

    }

  iconv_close (cd);

  return result;

}

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"