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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. // 27.6.2.4 basic_ostream seek members #include #include #include #include bool test01() { using namespace std; typedef ios::pos_type pos_type; bool test = true; const char str_lit01[] = "ostream_seeks-1.txt"; // out // test default ctors leave things in the same positions... ostringstream ost1; pos_type p1 = ost1.tellp(); ofstream ofs1; pos_type p2 = ofs1.tellp(); VERIFY( p1 == p2 ); // out // test ctors leave things in the same positions... ostringstream ost2("bob_marley:kaya"); p1 = ost2.tellp(); ofstream ofs2(str_lit01); p2 = ofs2.tellp(); VERIFY( p1 == p2 ); #ifdef DEBUG_ASSERT assert(test); #endif return test; } #if 0 // XXX FIX ME // basically this is the istreams_seeks.cc code. We need to fix it up // for ostreams...... // fstreams void test04(void) { bool test = true; std::istream::pos_type pos01, pos02, pos03, pos04, pos05, pos06; std::ios_base::iostate state01, state02; const char str_lit01[] = "istream_unformatted-1.txt"; const char str_lit02[] = "istream_unformatted-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 tellp() // in | out pos01 = is01.tellp(); pos02 = is01.tellp(); VERIFY( pos01 == pos02 ); // VERIFY( istream::pos_type(0) != pos01 ); //deprecated // in pos03 = is02.tellp(); pos04 = is02.tellp(); VERIFY( pos03 == pos04 ); // VERIFY( istream::pos_type(0) != pos03 ); //deprecated // out pos05 = is03.tellp(); pos06 = is03.tellp(); 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 tellp. state01 = is01.rdstate(); is01.seekg(10, std::ios_base::cur); state02 = is01.rdstate(); pos01 = is01.tellp(); VERIFY( pos01 == pos02 + 10 ); VERIFY( state01 == state02 ); pos02 = is01.tellp(); VERIFY( pos02 == pos01 ); state01 = is02.rdstate(); is02.seekg(10, std::ios_base::cur); state02 = is02.rdstate(); pos03 = is02.tellp(); VERIFY( pos03 == pos04 + 10 ); VERIFY( state01 == state02 ); pos04 = is02.tellp(); VERIFY( pos03 == pos04 ); state01 = is03.rdstate(); is03.seekg(10, std::ios_base::cur); state02 = is03.rdstate(); pos05 = is03.tellp(); VERIFY( pos05 == pos06 + 10 ); VERIFY( state01 == state02 ); pos06 = is03.tellp(); VERIFY( pos05 == pos06 ); // beg state01 = is01.rdstate(); is01.seekg(20, std::ios_base::beg); state02 = is01.rdstate(); pos01 = is01.tellp(); VERIFY( pos01 == pos02 + 10 ); VERIFY( state01 == state02 ); pos02 = is01.tellp(); VERIFY( pos02 == pos01 ); state01 = is02.rdstate(); is02.seekg(20, std::ios_base::beg); state02 = is02.rdstate(); pos03 = is02.tellp(); VERIFY( pos03 == pos04 + 10 ); VERIFY( state01 == state02 ); pos04 = is02.tellp(); VERIFY( pos03 == pos04 ); state01 = is03.rdstate(); is03.seekg(20, std::ios_base::beg); state02 = is03.rdstate(); pos05 = is03.tellp(); VERIFY( pos05 == pos06 + 10 ); VERIFY( state01 == state02 ); pos06 = is03.tellp(); 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) { bool test = true; std::istream::pos_type pos01, pos02, pos03, pos04, pos05, pos06; std::ios_base::iostate state01, state02; const char str_lit01[] = "istream_unformatted-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 tellp() // in | out pos01 = is01.tellp(); pos02 = is01.tellp(); VERIFY( pos01 == pos02 ); // VERIFY( istream::pos_type(0) != pos01 ); // deprecated // in pos03 = is02.tellp(); pos04 = is02.tellp(); VERIFY( pos03 == pos04 ); // VERIFY( istream::pos_type(0) != pos03 ); // deprecated // out pos05 = is03.tellp(); pos06 = is03.tellp(); 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 tellp. state01 = is01.rdstate(); is01.seekg(10, std::ios_base::cur); state02 = is01.rdstate(); pos01 = is01.tellp(); VERIFY( pos01 == pos02 + 10 ); VERIFY( state01 == state02 ); pos02 = is01.tellp(); VERIFY( pos02 == pos01 ); state01 = is02.rdstate(); is02.seekg(10, std::ios_base::cur); state02 = is02.rdstate(); pos03 = is02.tellp(); VERIFY( pos03 == pos04 + 10 ); VERIFY( state01 == state02 ); pos04 = is02.tellp(); VERIFY( pos03 == pos04 ); state01 = is03.rdstate(); is03.seekg(10, std::ios_base::cur); state02 = is03.rdstate(); pos05 = is03.tellp(); VERIFY( pos05 == pos06 ); // as only out buffer VERIFY( state01 == state02 ); pos06 = is03.tellp(); VERIFY( pos05 == pos06 ); // beg state01 = is01.rdstate(); is01.seekg(20, std::ios_base::beg); state02 = is01.rdstate(); pos01 = is01.tellp(); VERIFY( pos01 == pos02 + 10 ); VERIFY( state01 == state02 ); pos02 = is01.tellp(); VERIFY( pos02 == pos01 ); state01 = is02.rdstate(); is02.seekg(20, std::ios_base::beg); state02 = is02.rdstate(); pos03 = is02.tellp(); VERIFY( pos03 == pos04 + 10 ); VERIFY( state01 == state02 ); pos04 = is02.tellp(); VERIFY( pos03 == pos04 ); state01 = is03.rdstate(); is03.seekg(20, std::ios_base::beg); state02 = is03.rdstate(); pos05 = is03.tellp(); VERIFY( pos05 == pos06 ); // as only out buffer VERIFY( state01 == state02 ); pos06 = is03.tellp(); VERIFY( pos05 == pos06 ); #ifdef DEBUG_ASSERT assert(test); #endif } #endif // XXX int main() { test01(); // test04(); // test05(); return 0; } @ 1.1 log @Initial revision @ text @@ 1.1.1.1 log @initial import of GCC 3.3 sources. (this is the latest GCC 3.3.1 prerelease snapshot, 3.3.1-20030720, we will update to 3.3.1 when it becomes available.) @ text @@