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// { dg-require-namedlocale "se_NO.UTF-8" }

// 2003-09-04  Petur Runolfsson  <peturr02@ru.is>

// Copyright (C) 2003, 2005, 2009 Free Software Foundation

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

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

// Free Software Foundation; either version 3, or (at your option)

// any later version.

// This 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 General Public License for more details.

// You should have received a copy of the GNU General Public License along

// with this library; see the file COPYING3.  If not see

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

// 27.8.1.4 Overridden virtual functions

#include <locale>

#include <fstream>

#include <cstdio>

#include <testsuite_hooks.h>

// Test that unbuffered really means unbuffered for UTF-8

void test05()

{

  using namespace std;

  bool test __attribute__((unused)) = true;

  const char* name = "tmp_underflow-5";

  wfilebuf fb;

  fb.pubsetbuf(0, 0);

  fb.pubimbue(locale("se_NO.UTF-8"));

  FILE* file = fopen(name, "w");

  setvbuf(file, 0, _IONBF, 0);

  fputs("abcde", file);

  fb.open(name, ios_base::in);

  VERIFY( fb.sbumpc() == L'a' );

  fseek(file, 1, SEEK_SET);

  fputc('0', file);

  VERIFY( fb.sbumpc() == L'0' );

  VERIFY( fb.sbumpc() == L'c' );

  fputc('1', file);

  fputc('2', file);

  VERIFY( fb.sbumpc() == L'2' );

  VERIFY( fb.sbumpc() == L'e' );

  VERIFY( fb.sbumpc() == WEOF );

  fputc('3', file);

  fputc('4', file);

  VERIFY( fb.sbumpc() == L'4' );

  VERIFY( fb.sbumpc() == WEOF );

  fb.close();

  fclose(file);

}

int main()

{

  test05();

  return 0;

}