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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [libstdc++-v3/] [testsuite/] [27_io/] [basic_istream/] [extractors_other/] [char/] [1.cc] - Rev 19
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// 1999-07-28 bkoz // Copyright (C) 1999, 2001, 2003 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, // USA. // 27.6.1.2.3 basic_istream::operator>> #include <istream> #include <sstream> #include <testsuite_hooks.h> // stringbufs. void test01() { typedef std::ios::traits_type ctraits_type; bool test __attribute__((unused)) = true; const std::string str_01; const std::string str_02("art taylor kickin it on DAKAR"); std::string strtmp; std::stringbuf isbuf_00(std::ios_base::in); std::stringbuf isbuf_01(std::ios_base::in | std::ios_base::out); std::stringbuf isbuf_02(str_01, std::ios_base::in); std::stringbuf isbuf_03(str_01, std::ios_base::in | std::ios_base::out); std::stringbuf isbuf_04(str_02, std::ios_base::in); std::stringbuf isbuf_05(str_02, std::ios_base::in | std::ios_base::out); std::istream is_00(NULL); std::istream is_01(&isbuf_01); std::istream is_02(&isbuf_02); std::istream is_03(&isbuf_03); std::istream is_04(&isbuf_04); std::istream is_05(&isbuf_05); std::ios_base::iostate state1, state2, statefail, stateeof; statefail = std::ios_base::failbit; stateeof = std::ios_base::eofbit; // template<_CharT, _Traits> // basic_istream& operator>>(basic_streambuf*) // null istream to empty in_buf state1 = is_00.rdstate(); is_00 >> &isbuf_00; state2 = is_00.rdstate(); VERIFY( state1 != state2 ); VERIFY( static_cast<bool>(state2 & statefail) ); VERIFY( isbuf_00.str() == str_01 ); // null istream to empty in_out_buf is_00.clear(std::ios_base::goodbit); state1 = is_00.rdstate(); is_00 >> &isbuf_01; state2 = is_00.rdstate(); VERIFY( state1 != state2 ); VERIFY( static_cast<bool>(state2 & statefail) ); VERIFY( isbuf_01.str() == str_01 ); // null istream to full in_buf is_00.clear(std::ios_base::goodbit); state1 = is_00.rdstate(); is_00 >> &isbuf_04; state2 = is_00.rdstate(); VERIFY( state1 != state2 ); VERIFY( static_cast<bool>(state2 & statefail) ); VERIFY( isbuf_04.str() == str_02 ); // null istream to full in_out_buf is_00.clear(std::ios_base::goodbit); state1 = is_00.rdstate(); is_00 >> &isbuf_05; state2 = is_00.rdstate(); VERIFY( state1 != state2 ); VERIFY( static_cast<bool>(state2 & statefail) ); VERIFY( isbuf_05.str() == str_02 ); // empty but non-null istream to full in_buf state1 = is_02.rdstate(); is_02 >> &isbuf_04; state2 = is_02.rdstate(); VERIFY( state1 != state2 ); VERIFY( static_cast<bool>(state2 & statefail) ); VERIFY( isbuf_04.str() == str_02 ); // as only an "in" buffer VERIFY( isbuf_04.sgetc() == 'a' ); // empty but non-null istream to full in_out_buf is_02.clear(std::ios_base::goodbit); state1 = is_02.rdstate(); is_02 >> &isbuf_05; state2 = is_02.rdstate(); VERIFY( state1 != state2 ); VERIFY( static_cast<bool>(state2 & statefail) ); VERIFY( isbuf_05.str() == str_02 ); // as only an "in" buffer VERIFY( isbuf_05.sgetc() == 'a' ); // full istream to empty in_buf (need out_buf, you know?) state1 = is_04.rdstate(); is_04 >> &isbuf_02; state2 = is_04.rdstate(); VERIFY( state1 != state2 ); VERIFY( static_cast<bool>(state2 & statefail) ); VERIFY( isbuf_02.str() == str_01 ); // as only an "in" buffer VERIFY( isbuf_02.sgetc() == ctraits_type::eof() ); VERIFY( is_04.peek() == ctraits_type::eof() ); // as failed // full istream to empty in_out_buf is_04.clear(std::ios_base::goodbit); state1 = is_04.rdstate(); is_04 >> &isbuf_03; state2 = is_04.rdstate(); VERIFY( state1 == state2 ); VERIFY( !static_cast<bool>(state2 & statefail) ); VERIFY( state2 != stateeof ); strtmp = isbuf_03.str(); VERIFY( strtmp == str_02 ); // as only an "in" buffer VERIFY( isbuf_03.sgetc() == 'a' ); VERIFY( is_04.peek() == ctraits_type::eof() ); } int main() { test01(); return 0; }