[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 27_io / istream_seeks.cc

// 2000-06-29 bkoz

// Copyright (C) 2000, 2001, 2002 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// 27.6.1.3 unformatted input functions
// NB: ostream has a particular "seeks" category. Adopt this for istreams too.
// @require@ %-*.tst %-*.txt
// @diff@ %-*.tst %-*.txt

#include <istream>
#include <sstream>
#include <fstream>
#include <testsuite_hooks.h>

bool test01()
{
  using namespace std;
  typedef ios::pos_type pos_type;

  bool test = true;
  const char str_lit01[] = "istream_seeks-1.tst";

  // in
  // test default ctors leave things in the same positions...
  istringstream ist1;
  pos_type p3 = ist1.tellg();

  ifstream ifs1;
  pos_type p4 = ifs1.tellg();

  VERIFY( p3 == p4 );

  // in
  // test ctors leave things in the same positions...
  istringstream ist2("bob_marley:kaya");
  p3 = ist2.tellg();

  ifstream ifs2(str_lit01);
  p4 = ifs2.tellg();

  VERIFY( p3 == p4 );

#ifdef DEBUG_ASSERT
  assert(test);
#endif

  return test;
}

const char* s = " lootpack, peanut butter wolf, rob swift, madlib, quasimoto";
const int times = 10;

void write_rewind(std::iostream& stream)
{
  for (int j = 0; j < times; j++) 
    {
      bool test = true;
      std::streampos begin = stream.tellg();
      
      for (int i = 0; i < times; ++i)
	stream << j << '-' << i << s << '\n';
      
      stream.seekg(begin);
      std::streampos end = stream.tellg(); 
      std::streampos badpos = std::streampos(std::streambuf::off_type(-1));
    }
}

void check_contents(std::iostream& stream)
{
  bool test = true;

  stream.clear();
  stream.seekg(0, std::ios::beg);
  int i = 0;
  int loop = times * times + 2;
  while (i < loop)
    {
      stream.ignore(80, '\n');
      if (stream.good())
	++i;
      else
	break;
    }
  VERIFY( i == times );
}

// fstream
// libstdc++/2346
void test02()
{	 
  std::fstream ofstrm;
  ofstrm.open("istream_seeks-3.txt", std::ios::out);
  if (!ofstrm)
    std::abort();
  write_rewind(ofstrm);
  ofstrm.close();

  std::fstream ifstrm;
  ifstrm.open("istream_seeks-3.txt", std::ios::in);
  check_contents(ifstrm);
  ifstrm.close();
}

// stringstream
// libstdc++/2346
void test03()
{	 
  std::stringstream sstrm;

  write_rewind(sstrm);
  check_contents(sstrm);
}

// fstreams
void test04(void)
{
  typedef std::istream::off_type off_type;

  bool test = true;
  std::istream::pos_type pos01, pos02, pos03, pos04, pos05, pos06;
  std::ios_base::iostate state01, state02;
  const char str_lit01[] = "istream_seeks-1.txt";
  const char str_lit02[] = "istream_seeks-2.txt";
  std::ifstream if01(str_lit01, std::ios_base::in | std::ios_base::out);
  std::ifstream if02(str_lit01, std::ios_base::in);
  std::ifstream if03(str_lit02, std::ios_base::out | std::ios_base::trunc); 
  VERIFY( if01.good() );
  VERIFY( if02.good() );
  VERIFY( if03.good() );

  std::istream is01(if01.rdbuf());
  std::istream is02(if02.rdbuf());
  std::istream is03(if03.rdbuf());

  // pos_type tellg()
  // in | out
  pos01 = is01.tellg();
  pos02 = is01.tellg();
  VERIFY( pos01 == pos02 );
  //  VERIFY( istream::pos_type(0) != pos01 ); //deprecated

  // in
  pos03 = is02.tellg();
  pos04 = is02.tellg();
  VERIFY( pos03 == pos04 );
  //  VERIFY( istream::pos_type(0) != pos03 ); //deprecated

  // out
  pos05 = is03.tellg();
  pos06 = is03.tellg();
  VERIFY( pos05 == pos06 );
  //  VERIFY( istream::pos_type(0) != pos01 ); //deprecated

  // istream& seekg(pos_type)
  // istream& seekg(off_type, ios_base::seekdir)

  // cur 
  // NB: see library issues list 136. It's the v-3 interp that seekg
  // only sets the input buffer, or else istreams with buffers that
  // have _M_mode == ios_base::out will fail to have consistency
  // between seekg and tellg.
  state01 = is01.rdstate();
  is01.seekg(10, std::ios_base::cur);
  state02 = is01.rdstate();
  pos01 = is01.tellg(); 
  VERIFY( pos01 == pos02 + off_type(10) ); 
  VERIFY( state01 == state02 );
  pos02 = is01.tellg(); 
  VERIFY( pos02 == pos01 ); 

  state01 = is02.rdstate();
  is02.seekg(10, std::ios_base::cur);
  state02 = is02.rdstate();
  pos03 = is02.tellg(); 
  VERIFY( pos03 == pos04 + off_type(10) ); 
  VERIFY( state01 == state02 );
  pos04 = is02.tellg(); 
  VERIFY( pos03 == pos04 ); 

  state01 = is03.rdstate();
  is03.seekg(10, std::ios_base::cur);
  state02 = is03.rdstate();
  pos05 = is03.tellg(); 
  VERIFY( pos05 == pos06 + off_type(10) ); 
  VERIFY( state01 == state02 );
  pos06 = is03.tellg(); 
  VERIFY( pos05 == pos06 ); 

  // beg
  state01 = is01.rdstate();
  is01.seekg(20, std::ios_base::beg);
  state02 = is01.rdstate();
  pos01 = is01.tellg(); 
  VERIFY( pos01 == pos02 + off_type(10) ); 
  VERIFY( state01 == state02 );
  pos02 = is01.tellg(); 
  VERIFY( pos02 == pos01 ); 

  state01 = is02.rdstate();
  is02.seekg(20, std::ios_base::beg);
  state02 = is02.rdstate();
  pos03 = is02.tellg(); 
  VERIFY( pos03 == pos04 + off_type(10) ); 
  VERIFY( state01 == state02 );
  pos04 = is02.tellg(); 
  VERIFY( pos03 == pos04 ); 

  state01 = is03.rdstate();
  is03.seekg(20, std::ios_base::beg);
  state02 = is03.rdstate();
  pos05 = is03.tellg(); 
  VERIFY( pos05 == pos06 + off_type(10) );
  VERIFY( state01 == state02 );
  pos06 = is03.tellg(); 
  VERIFY( pos05 == pos06 );

  // libstdc++/6414
  if01.seekg(0, std::ios_base::beg);
  pos01 = if01.tellg();
  if01.peek();
  pos02 = if01.tellg();
  VERIFY( pos02 == pos01 );

#ifdef DEBUG_ASSERT
  assert(test);
#endif
}

// stringstreams
void test05(void)
{
  typedef std::istream::off_type off_type;

  bool test = true;
  std::istream::pos_type pos01, pos02, pos03, pos04, pos05, pos06;
  std::ios_base::iostate state01, state02;
  const char str_lit01[] = "istream_seeks-1.tst";
  std::ifstream if01(str_lit01);
  std::ifstream if02(str_lit01);
  std::ifstream if03(str_lit01);
  VERIFY( if01.good() );
  VERIFY( if02.good() );
  VERIFY( if03.good() );

  std::stringbuf strbuf01(std::ios_base::in | std::ios_base::out);
  if01 >> &strbuf01; 
  // initialize stringbufs that are ios_base::out
  std::stringbuf strbuf03(strbuf01.str(), std::ios_base::out);
  // initialize stringbufs that are ios_base::in
  std::stringbuf strbuf02(strbuf01.str(), std::ios_base::in);

  std::istream is01(&strbuf01);
  std::istream is02(&strbuf02);
  std::istream is03(&strbuf03);

  // pos_type tellg()
  // in | out
  pos01 = is01.tellg();
  pos02 = is01.tellg();
  VERIFY( pos01 == pos02 );
  // VERIFY( istream::pos_type(0) != pos01 ); // deprecated

  // in
  pos03 = is02.tellg();
  pos04 = is02.tellg();
  VERIFY( pos03 == pos04 );
  //  VERIFY( istream::pos_type(0) != pos03 ); // deprecated

  // out
  pos05 = is03.tellg();
  pos06 = is03.tellg();
  VERIFY( pos05 == pos06 );
  //  VERIFY( istream::pos_type(0) != pos01 ); //deprecated

  // istream& seekg(pos_type)
  // istream& seekg(off_type, ios_base::seekdir)

  // cur 
  // NB: see library issues list 136. It's the v-3 interp that seekg
  // only sets the input buffer, or else istreams with buffers that
  // have _M_mode == ios_base::out will fail to have consistency
  // between seekg and tellg.
  state01 = is01.rdstate();
  is01.seekg(10, std::ios_base::cur);
  state02 = is01.rdstate();
  pos01 = is01.tellg(); 
  VERIFY( pos01 == pos02 + off_type(10) ); 
  VERIFY( state01 == state02 );
  pos02 = is01.tellg(); 
  VERIFY( pos02 == pos01 ); 

  state01 = is02.rdstate();
  is02.seekg(10, std::ios_base::cur);
  state02 = is02.rdstate();
  pos03 = is02.tellg(); 
  VERIFY( pos03 == pos04 + off_type(10) ); 
  VERIFY( state01 == state02 );
  pos04 = is02.tellg(); 
  VERIFY( pos03 == pos04 ); 

  state01 = is03.rdstate();
  is03.seekg(10, std::ios_base::cur);
  state02 = is03.rdstate();
  pos05 = is03.tellg(); 
  VERIFY( pos05 == pos06 ); // as only out buffer 
  VERIFY( state01 != state02 );
  pos06 = is03.tellg(); 
  VERIFY( pos05 == pos06 ); 

  // beg
  state01 = is01.rdstate();
  is01.seekg(20, std::ios_base::beg);
  state02 = is01.rdstate();
  pos01 = is01.tellg(); 
  VERIFY( pos01 == pos02 + off_type(10) ); 
  VERIFY( state01 == state02 );
  pos02 = is01.tellg(); 
  VERIFY( pos02 == pos01 ); 

  state01 = is02.rdstate();
  is02.seekg(20, std::ios_base::beg);
  state02 = is02.rdstate();
  pos03 = is02.tellg(); 
  VERIFY( pos03 == pos04 + off_type(10) ); 
  VERIFY( state01 == state02 );
  pos04 = is02.tellg(); 
  VERIFY( pos03 == pos04 ); 

  state01 = is03.rdstate();
  is03.seekg(20, std::ios_base::beg);
  state02 = is03.rdstate();
  pos05 = is03.tellg(); 
  VERIFY( pos05 == pos06 ); // as only out buffer 
  VERIFY( state01 == state02 );
  pos06 = is03.tellg(); 
  VERIFY( pos05 == pos06 ); 

#ifdef DEBUG_ASSERT
  assert(test);
#endif
}

int main()
{
  test01();

  test02();
  test03();

  test04();
  test05();
  return 0;
}
Commit	Line	Data
fbd5f73b BK	1	// 2000-06-29 bkoz
fbd5f73b BK	2
8081da07	3	// Copyright (C) 2000, 2001, 2002 Free Software Foundation
fbd5f73b BK	4	//
	5	// This file is part of the GNU ISO C++ Library. This library is free
	6	// software; you can redistribute it and/or modify it under the
	7	// terms of the GNU General Public License as published by the
	8	// Free Software Foundation; either version 2, or (at your option)
	9	// any later version.
	10
	11	// This library is distributed in the hope that it will be useful,
	12	// but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	// GNU General Public License for more details.
	15
	16	// You should have received a copy of the GNU General Public License along
	17	// with this library; see the file COPYING. If not, write to the Free
	18	// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
	19	// USA.
	20
	21	// 27.6.1.3 unformatted input functions
	22	// NB: ostream has a particular "seeks" category. Adopt this for istreams too.
599d54fd LR	23	// @require@ %-.tst %-.txt
599d54fd LR	24	// @diff@ %-.tst %-.txt
fbd5f73b BK	25
	26	#include <istream>
	27	#include <sstream>
	28	#include <fstream>
fe413112	29	#include <testsuite_hooks.h>
fbd5f73b	30
fbd5f73b BK	31	bool test01()
	32	{
	33	using namespace std;
	34	typedef ios::pos_type pos_type;
	35
	36	bool test = true;
d32c94be	37	const char str_lit01[] = "istream_seeks-1.tst";
fbd5f73b BK	38
	39	// in
	40	// test default ctors leave things in the same positions...
	41	istringstream ist1;
	42	pos_type p3 = ist1.tellg();
	43
	44	ifstream ifs1;
	45	pos_type p4 = ifs1.tellg();
	46
aa1b2f7d	47	VERIFY( p3 == p4 );
fbd5f73b BK	48
	49	// in
	50	// test ctors leave things in the same positions...
	51	istringstream ist2("bob_marley:kaya");
	52	p3 = ist2.tellg();
	53
	54	ifstream ifs2(str_lit01);
	55	p4 = ifs2.tellg();
	56
aa1b2f7d	57	VERIFY( p3 == p4 );
fbd5f73b BK	58
	59	#ifdef DEBUG_ASSERT
	60	assert(test);
	61	#endif
	62
	63	return test;
	64	}
	65
3b0fd4bc BK	66	const char* s = " lootpack, peanut butter wolf, rob swift, madlib, quasimoto";
	67	const int times = 10;
	68
	69	void write_rewind(std::iostream& stream)
	70	{
	71	for (int j = 0; j < times; j++)
	72	{
	73	bool test = true;
	74	std::streampos begin = stream.tellg();
	75
	76	for (int i = 0; i < times; ++i)
	77	stream << j << '-' << i << s << '\n';
	78
	79	stream.seekg(begin);
	80	std::streampos end = stream.tellg();
	81	std::streampos badpos = std::streampos(std::streambuf::off_type(-1));
	82	}
	83	}
	84
	85	void check_contents(std::iostream& stream)
	86	{
	87	bool test = true;
	88
	89	stream.clear();
	90	stream.seekg(0, std::ios::beg);
	91	int i = 0;
	92	int loop = times * times + 2;
	93	while (i < loop)
	94	{
	95	stream.ignore(80, '\n');
	96	if (stream.good())
	97	++i;
	98	else
	99	break;
	100	}
	101	VERIFY( i == times );
	102	}
	103
	104	// fstream
	105	// libstdc++/2346
	106	void test02()
	107	{
	108	std::fstream ofstrm;
	109	ofstrm.open("istream_seeks-3.txt", std::ios::out);
	110	if (!ofstrm)
8081da07	111	std::abort();
3b0fd4bc BK	112	write_rewind(ofstrm);
	113	ofstrm.close();
	114
	115	std::fstream ifstrm;
	116	ifstrm.open("istream_seeks-3.txt", std::ios::in);
	117	check_contents(ifstrm);
	118	ifstrm.close();
	119	}
	120
	121	// stringstream
	122	// libstdc++/2346
	123	void test03()
	124	{
	125	std::stringstream sstrm;
	126
	127	write_rewind(sstrm);
	128	check_contents(sstrm);
	129	}
	130
fbd5f73b BK	131	// fstreams
	132	void test04(void)
	133	{
d32c94be BK	134	typedef std::istream::off_type off_type;
d32c94be BK	135
fbd5f73b BK	136	bool test = true;
	137	std::istream::pos_type pos01, pos02, pos03, pos04, pos05, pos06;
	138	std::ios_base::iostate state01, state02;
d32c94be BK	139	const char str_lit01[] = "istream_seeks-1.txt";
d32c94be BK	140	const char str_lit02[] = "istream_seeks-2.txt";
fbd5f73b BK	141	std::ifstream if01(str_lit01, std::ios_base::in \| std::ios_base::out);
	142	std::ifstream if02(str_lit01, std::ios_base::in);
	143	std::ifstream if03(str_lit02, std::ios_base::out \| std::ios_base::trunc);
aa1b2f7d BV	144	VERIFY( if01.good() );
	145	VERIFY( if02.good() );
	146	VERIFY( if03.good() );
fbd5f73b BK	147
	148	std::istream is01(if01.rdbuf());
	149	std::istream is02(if02.rdbuf());
	150	std::istream is03(if03.rdbuf());
	151
	152	// pos_type tellg()
	153	// in \| out
	154	pos01 = is01.tellg();
	155	pos02 = is01.tellg();
aa1b2f7d	156	VERIFY( pos01 == pos02 );
189244a4	157	// VERIFY( istream::pos_type(0) != pos01 ); //deprecated
fbd5f73b BK	158
	159	// in
	160	pos03 = is02.tellg();
	161	pos04 = is02.tellg();
aa1b2f7d	162	VERIFY( pos03 == pos04 );
189244a4	163	// VERIFY( istream::pos_type(0) != pos03 ); //deprecated
fbd5f73b BK	164
	165	// out
	166	pos05 = is03.tellg();
	167	pos06 = is03.tellg();
aa1b2f7d	168	VERIFY( pos05 == pos06 );
189244a4	169	// VERIFY( istream::pos_type(0) != pos01 ); //deprecated
fbd5f73b BK	170
	171	// istream& seekg(pos_type)
	172	// istream& seekg(off_type, ios_base::seekdir)
	173
	174	// cur
	175	// NB: see library issues list 136. It's the v-3 interp that seekg
	176	// only sets the input buffer, or else istreams with buffers that
	177	// have _M_mode == ios_base::out will fail to have consistency
	178	// between seekg and tellg.
	179	state01 = is01.rdstate();
	180	is01.seekg(10, std::ios_base::cur);
	181	state02 = is01.rdstate();
	182	pos01 = is01.tellg();
d32c94be	183	VERIFY( pos01 == pos02 + off_type(10) );
aa1b2f7d	184	VERIFY( state01 == state02 );
fbd5f73b	185	pos02 = is01.tellg();
aa1b2f7d	186	VERIFY( pos02 == pos01 );
fbd5f73b BK	187
	188	state01 = is02.rdstate();
	189	is02.seekg(10, std::ios_base::cur);
	190	state02 = is02.rdstate();
	191	pos03 = is02.tellg();
d32c94be	192	VERIFY( pos03 == pos04 + off_type(10) );
aa1b2f7d	193	VERIFY( state01 == state02 );
fbd5f73b	194	pos04 = is02.tellg();
aa1b2f7d	195	VERIFY( pos03 == pos04 );
fbd5f73b BK	196
	197	state01 = is03.rdstate();
	198	is03.seekg(10, std::ios_base::cur);
	199	state02 = is03.rdstate();
	200	pos05 = is03.tellg();
d32c94be	201	VERIFY( pos05 == pos06 + off_type(10) );
aa1b2f7d	202	VERIFY( state01 == state02 );
fbd5f73b	203	pos06 = is03.tellg();
aa1b2f7d	204	VERIFY( pos05 == pos06 );
fbd5f73b BK	205
	206	// beg
	207	state01 = is01.rdstate();
	208	is01.seekg(20, std::ios_base::beg);
	209	state02 = is01.rdstate();
	210	pos01 = is01.tellg();
d32c94be	211	VERIFY( pos01 == pos02 + off_type(10) );
aa1b2f7d	212	VERIFY( state01 == state02 );
fbd5f73b	213	pos02 = is01.tellg();
aa1b2f7d	214	VERIFY( pos02 == pos01 );
fbd5f73b BK	215
	216	state01 = is02.rdstate();
	217	is02.seekg(20, std::ios_base::beg);
	218	state02 = is02.rdstate();
	219	pos03 = is02.tellg();
d32c94be	220	VERIFY( pos03 == pos04 + off_type(10) );
aa1b2f7d	221	VERIFY( state01 == state02 );
fbd5f73b	222	pos04 = is02.tellg();
aa1b2f7d	223	VERIFY( pos03 == pos04 );
fbd5f73b BK	224
	225	state01 = is03.rdstate();
	226	is03.seekg(20, std::ios_base::beg);
	227	state02 = is03.rdstate();
	228	pos05 = is03.tellg();
d32c94be	229	VERIFY( pos05 == pos06 + off_type(10) );
aa1b2f7d	230	VERIFY( state01 == state02 );
fbd5f73b	231	pos06 = is03.tellg();
74c263af JM	232	VERIFY( pos05 == pos06 );
	233
	234	// libstdc++/6414
	235	if01.seekg(0, std::ios_base::beg);
	236	pos01 = if01.tellg();
	237	if01.peek();
	238	pos02 = if01.tellg();
	239	VERIFY( pos02 == pos01 );
fbd5f73b BK	240
	241	#ifdef DEBUG_ASSERT
	242	assert(test);
	243	#endif
	244	}
	245
	246	// stringstreams
	247	void test05(void)
	248	{
d32c94be BK	249	typedef std::istream::off_type off_type;
d32c94be BK	250
fbd5f73b BK	251	bool test = true;
	252	std::istream::pos_type pos01, pos02, pos03, pos04, pos05, pos06;
	253	std::ios_base::iostate state01, state02;
d32c94be	254	const char str_lit01[] = "istream_seeks-1.tst";
fbd5f73b BK	255	std::ifstream if01(str_lit01);
	256	std::ifstream if02(str_lit01);
	257	std::ifstream if03(str_lit01);
aa1b2f7d BV	258	VERIFY( if01.good() );
	259	VERIFY( if02.good() );
	260	VERIFY( if03.good() );
fbd5f73b BK	261
	262	std::stringbuf strbuf01(std::ios_base::in \| std::ios_base::out);
	263	if01 >> &strbuf01;
	264	// initialize stringbufs that are ios_base::out
	265	std::stringbuf strbuf03(strbuf01.str(), std::ios_base::out);
	266	// initialize stringbufs that are ios_base::in
	267	std::stringbuf strbuf02(strbuf01.str(), std::ios_base::in);
	268
	269	std::istream is01(&strbuf01);
	270	std::istream is02(&strbuf02);
	271	std::istream is03(&strbuf03);
	272
	273	// pos_type tellg()
	274	// in \| out
	275	pos01 = is01.tellg();
	276	pos02 = is01.tellg();
aa1b2f7d BV	277	VERIFY( pos01 == pos02 );
aa1b2f7d BV	278	// VERIFY( istream::pos_type(0) != pos01 ); // deprecated
fbd5f73b BK	279
	280	// in
	281	pos03 = is02.tellg();
	282	pos04 = is02.tellg();
aa1b2f7d BV	283	VERIFY( pos03 == pos04 );
aa1b2f7d BV	284	// VERIFY( istream::pos_type(0) != pos03 ); // deprecated
fbd5f73b BK	285
	286	// out
	287	pos05 = is03.tellg();
	288	pos06 = is03.tellg();
aa1b2f7d BV	289	VERIFY( pos05 == pos06 );
aa1b2f7d BV	290	// VERIFY( istream::pos_type(0) != pos01 ); //deprecated
fbd5f73b BK	291
	292	// istream& seekg(pos_type)
	293	// istream& seekg(off_type, ios_base::seekdir)
	294
	295	// cur
	296	// NB: see library issues list 136. It's the v-3 interp that seekg
	297	// only sets the input buffer, or else istreams with buffers that
	298	// have _M_mode == ios_base::out will fail to have consistency
	299	// between seekg and tellg.
	300	state01 = is01.rdstate();
	301	is01.seekg(10, std::ios_base::cur);
	302	state02 = is01.rdstate();
	303	pos01 = is01.tellg();
d32c94be	304	VERIFY( pos01 == pos02 + off_type(10) );
aa1b2f7d	305	VERIFY( state01 == state02 );
fbd5f73b	306	pos02 = is01.tellg();
aa1b2f7d	307	VERIFY( pos02 == pos01 );
fbd5f73b BK	308
	309	state01 = is02.rdstate();
	310	is02.seekg(10, std::ios_base::cur);
	311	state02 = is02.rdstate();
	312	pos03 = is02.tellg();
d32c94be	313	VERIFY( pos03 == pos04 + off_type(10) );
aa1b2f7d	314	VERIFY( state01 == state02 );
fbd5f73b	315	pos04 = is02.tellg();
aa1b2f7d	316	VERIFY( pos03 == pos04 );
fbd5f73b BK	317
	318	state01 = is03.rdstate();
	319	is03.seekg(10, std::ios_base::cur);
	320	state02 = is03.rdstate();
	321	pos05 = is03.tellg();
aa1b2f7d	322	VERIFY( pos05 == pos06 ); // as only out buffer
d52a9847	323	VERIFY( state01 != state02 );
fbd5f73b	324	pos06 = is03.tellg();
aa1b2f7d	325	VERIFY( pos05 == pos06 );
fbd5f73b BK	326
	327	// beg
	328	state01 = is01.rdstate();
	329	is01.seekg(20, std::ios_base::beg);
	330	state02 = is01.rdstate();
	331	pos01 = is01.tellg();
d32c94be	332	VERIFY( pos01 == pos02 + off_type(10) );
aa1b2f7d	333	VERIFY( state01 == state02 );
fbd5f73b	334	pos02 = is01.tellg();
aa1b2f7d	335	VERIFY( pos02 == pos01 );
fbd5f73b BK	336
	337	state01 = is02.rdstate();
	338	is02.seekg(20, std::ios_base::beg);
	339	state02 = is02.rdstate();
	340	pos03 = is02.tellg();
d32c94be	341	VERIFY( pos03 == pos04 + off_type(10) );
aa1b2f7d	342	VERIFY( state01 == state02 );
fbd5f73b	343	pos04 = is02.tellg();
aa1b2f7d	344	VERIFY( pos03 == pos04 );
fbd5f73b BK	345
	346	state01 = is03.rdstate();
	347	is03.seekg(20, std::ios_base::beg);
	348	state02 = is03.rdstate();
	349	pos05 = is03.tellg();
aa1b2f7d BV	350	VERIFY( pos05 == pos06 ); // as only out buffer
aa1b2f7d BV	351	VERIFY( state01 == state02 );
fbd5f73b	352	pos06 = is03.tellg();
aa1b2f7d	353	VERIFY( pos05 == pos06 );
fbd5f73b BK	354
	355	#ifdef DEBUG_ASSERT
	356	assert(test);
	357	#endif
	358	}
	359
	360	int main()
	361	{
	362	test01();
3b0fd4bc BK	363
	364	test02();
	365	test03();
	366
fbd5f73b BK	367	test04();
	368	test05();
	369	return 0;
	370	}
3b0fd4bc BK	371
3b0fd4bc BK	372