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// 981208 bkoz test functionality of basic_stringbuf for char_type == char

// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 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.

#include <sstream>

#include <testsuite_hooks.h>

std::string str_01("mykonos. . . or what?");

std::stringbuf strb_01(str_01);

// test overloaded virtual functions

void test04()

{

  bool test __attribute__((unused)) = true;

  std::string           str_tmp;

  std::streamsize               strmsz_1, strmsz_2;

  typedef std::stringbuf::int_type int_type;

  typedef std::stringbuf::traits_type traits_type;

  typedef std::stringbuf::pos_type pos_type;

  typedef std::stringbuf::off_type off_type;

  int_type c1 = strb_01.sbumpc();

  int_type c2, c3;

  // BUFFER MANAGEMENT & POSITIONING

  // seekoff

  // pubseekoff(off_type off, ios_base::seekdir way, ios_base::openmode which)

  // alters the stream position to off

  pos_type pt_1(off_type(-1));

  pos_type pt_2(off_type(0));

  off_type off_1 = 0;

  off_type off_2 = 0;

  strb_01.str(str_01); //in|out ("mykonos. . . or what?");

  //IN|OUT

  //beg

  pt_1 = strb_01.pubseekoff(2, std::ios_base::beg);

  off_1 = off_type(pt_1);

  VERIFY( off_1 >= 0 );

  c1 = strb_01.snextc(); //current in pointer +1

  VERIFY( c1 == 'o' );

  c2 = strb_01.sputc('x');  //test current out pointer

  str_tmp = std::string("myxonos. . . or what?");

  VERIFY( strb_01.str() == str_tmp );

  //cur

  pt_1 = strb_01.pubseekoff(2, std::ios_base::cur);

  off_1 = off_type(pt_1);

  VERIFY( off_1 == -1 ); // can't seekoff for in and out + cur in sstreams

  pt_1 = strb_01.pubseekoff(2, std::ios_base::cur, std::ios_base::in);

  off_1 = off_type(pt_1);

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

  off_2 = off_type(pt_2);

  VERIFY( off_2 == off_1 + 2 );

  c1 = strb_01.snextc(); //current in pointer + 1

  VERIFY( c1 == ' ' );

  c2 = strb_01.sputc('x');  //test current out pointer

  str_tmp = std::string("myxxnos. . . or what?");

  VERIFY( strb_01.str() == str_tmp );

  //end

  pt_2 = strb_01.pubseekoff(2, std::ios_base::end);

  off_1 = off_type(pt_2);

  VERIFY( off_1 == -1 ); // not a valid position

  VERIFY( strb_01.str() == str_tmp );

  // end part two (from the filebuf tests)

  strb_01.pubseekoff(0, std::ios_base::end);

  strmsz_1 = strb_01.in_avail(); // 0 cuz at the end

  c1 = strb_01.sgetc();

  c2 = strb_01.sungetc();

  strmsz_2 = strb_01.in_avail(); // 1

  c3 = strb_01.sgetc();

  VERIFY( c1 != c2 );

  VERIFY( strmsz_2 != strmsz_1 );

  VERIFY( strmsz_2 == 1 );

  // end part three

  strmsz_1 = strb_01.str().size();

  strmsz_2 = strb_01.sputn(" ravi shankar meets carlos santana in LoHa", 90);

  strb_01.pubseekoff(0, std::ios_base::end);

  strb_01.sputc('<');

  str_tmp = strb_01.str();

  VERIFY(static_cast<std::streamsize>(str_tmp.size()) == strmsz_1 + strmsz_2 + 1);

  // IN

  // OUT

}

int main()

{

  test04();

  return 0;

}

// more candy!!!