+++ /dev/null
-// 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 );
- 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 );
-}
-
-// 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 );
-}
-
-// libstdc++/8348
-void test06(void)
-{
- using namespace std;
- bool test = true;
- string num1("555");
-
- // tellg
- {
- istringstream iss(num1);
- istream::pos_type pos1 = iss.tellg();
- int asNum = 0;
- iss >> asNum;
- VERIFY( test = iss.eof() );
- VERIFY( test = !iss.fail() );
- iss.tellg();
- VERIFY( test = !iss.fail() );
- }
-
- // seekg
- {
- istringstream iss(num1);
- istream::pos_type pos1 = iss.tellg();
- int asNum = 0;
- iss >> asNum;
- VERIFY( test = iss.eof() );
- VERIFY( test = !iss.fail() );
- iss.seekg(0, ios_base::beg);
- VERIFY( test = !iss.fail() );
- }
-
- // seekg
- {
- istringstream iss(num1);
- istream::pos_type pos1 = iss.tellg();
- int asNum = 0;
- iss >> asNum;
- VERIFY( test = iss.eof() );
- VERIFY( test = !iss.fail() );
- iss.seekg(pos1);
- VERIFY( test = !iss.fail() );
- }
-}
-
-int main()
-{
- test01();
-
- test02();
- test03();
-
- test04();
- test05();
-
- test06();
- return 0;
-}
-
-
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