/* Test restarting behaviour of mbrtowc.

   Copyright (C) 2000-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   Contributed by Bruno Haible <haible@ilog.fr>.

   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 <stdio.h>

#include <string.h>

#include <wchar.h>

#include <locale.h>

#define show(expr, nexp, wcexp) \

  n = expr;								  \

  printf (#expr " -> %zu", n);						  \

  printf (", wc = %lu", (unsigned long int) wc);			  \

  if (n != (size_t) nexp || wc != wcexp)				  \

    {									  \

      printf (", expected %zu and %lu", (size_t) nexp,			  \

	      (unsigned long int) wcexp);				  \

      result = 1;							  \

    }									  \

  putc ('\n', stdout)

static int

do_test (void)

{

  const unsigned char buf[6] = { 0x25,  0xe2, 0x82, 0xac,  0xce, 0xbb };

  mbstate_t state;

  wchar_t wc = 42;

  size_t n;

  int result = 0;

  const char *used_locale;

  setlocale (LC_CTYPE, "de_DE.UTF-8");

  /* Double check.  */

  used_locale = setlocale (LC_CTYPE, NULL);

  printf ("used locale: \"%s\"\n", used_locale);

  result = strcmp (used_locale, "de_DE.UTF-8");

  memset (&state, '\0', sizeof (state));

  show (mbrtowc (&wc, (const char *) buf + 0, 1, &state), 1, 37);

  show (mbrtowc (&wc, (const char *) buf + 1, 1, &state), -2, 37);

  show (mbrtowc (&wc, (const char *) buf + 2, 3, &state), 2, 8364);

  show (mbrtowc (&wc, (const char *) buf + 4, 1, &state), -2, 8364);

  show (mbrtowc (&wc, (const char *) buf + 5, 1, &state), 1, 955);

  show (mbrtowc (&wc, (const char *) buf + 5, 1, &state), -1, 955);

  return result;

}

#define TEST_FUNCTION do_test ()

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