Subversion Repositories scarts

// Copyright (C) 2004 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 2, 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 COPYING.  If not, write to the Free

// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,

// USA.

// 27.6.1.3 unformatted input functions

// @require@ %-*.tst %-*.txt

// @diff@ %-*.tst %-*.txt

#include <istream>

#include <fstream>

#include <limits>

#include <testsuite_hooks.h>

// istream& ignore(streamsize n)

void

test01()

{

  using namespace std;

  bool test __attribute__((unused)) = true;

  const char filename[] ="istream_unformatted-1.txt";

  ios_base::iostate state1, state2;

  wifstream ifstrm;

  ifstrm.open(filename);

  state1 = ifstrm.rdstate();

  VERIFY( state1 == ios_base::goodbit );

  VERIFY( ifstrm.peek() == L'1' );

  state2 = ifstrm.rdstate();

  VERIFY( state1 == state2 );

  state1 = ifstrm.rdstate();

  ifstrm.ignore(1);

  VERIFY( ifstrm.gcount() == 1 );

  state2 = ifstrm.rdstate();

  VERIFY( state1 == state2 );

  VERIFY( ifstrm.peek() == L'2' );

  state1 = ifstrm.rdstate();

  ifstrm.ignore(10);

  VERIFY( ifstrm.gcount() == 10 );

  state2 = ifstrm.rdstate();

  VERIFY( state1 == state2 );

  VERIFY( ifstrm.peek() == L'1' );

  state1 = ifstrm.rdstate();

  ifstrm.ignore(100);

  VERIFY( ifstrm.gcount() == 100 );

  state2 = ifstrm.rdstate();

  VERIFY( state1 == state2 );

  VERIFY( ifstrm.peek() == L'2' );

  state1 = ifstrm.rdstate();

  ifstrm.ignore(1000);

  VERIFY( ifstrm.gcount() == 1000 );

  state2 = ifstrm.rdstate();

  VERIFY( state1 == state2 );

  VERIFY( ifstrm.peek() == L'1' );

  state1 = ifstrm.rdstate();

  ifstrm.ignore(10000);

  VERIFY( ifstrm.gcount() == 10000 );

  state2 = ifstrm.rdstate();

  VERIFY( state1 == state2 );

  VERIFY( ifstrm.peek() == L'2' );

  state1 = ifstrm.rdstate();

  ifstrm.ignore(numeric_limits<streamsize>::max());

  VERIFY( ifstrm.gcount() == 5389 );

  state2 = ifstrm.rdstate();

  VERIFY( state1 != state2 );

  VERIFY( state2 == ios_base::eofbit );

}

int

main()

{

  test01();

  return 0;

}