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// 2004-08-12  Paolo Carlini  <pcarlini@suse.de>

// Copyright (C) 2004 Free Software Foundation, Inc.

//

// 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.

// 27.7.1.3 Overridden virtual functions

#include <sstream>

#include <testsuite_hooks.h>

// libstdc++/16956

void test01()

{

  bool test __attribute__((unused)) = true;

  using namespace std;

  typedef stringbuf::int_type int_type;

  typedef stringbuf::traits_type traits_type;

  typedef stringbuf::pos_type pos_type;

  typedef stringbuf::off_type off_type;

  stringbuf strb_01("lara's place", ios_base::in);

  pos_type pt_1 = strb_01.pubseekoff(5, ios_base::cur, ios_base::in);

  int_type c1 = strb_01.sgetc();

  VERIFY( c1 != traits_type::eof() );

  pos_type pt_2 = strb_01.pubseekoff(2, ios_base::cur, ios_base::in);

  pos_type pt_3 = strb_01.pubseekpos(pt_1, ios_base::in);

  int_type c2 = strb_01.sbumpc();

  VERIFY( off_type(pt_3) == off_type(pt_2) - 2 );

  VERIFY( c2 == c1 );

  stringbuf strb_02("-", ios_base::out);

  pos_type pt_4 = strb_02.pubseekoff(0, ios_base::cur, ios_base::out);

  strb_02.sputn("red", 3);

  pos_type pt_5 = strb_02.pubseekoff(-3, ios_base::cur, ios_base::out);

  strb_02.pubseekpos(pt_5, ios_base::out);

  VERIFY( off_type(pt_5) == off_type(pt_4) );

  strb_02.sputn("blu", 3);

  VERIFY( strb_02.str() == "blu" );

}

int main()

{

  test01();

  return 0;

}