| // 1999-07-26 bkoz |
| |
| // Copyright (C) 1999, 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 character extractors |
| |
| #include <istream> |
| #include <sstream> |
| #include <testsuite_hooks.h> |
| |
| void test01() |
| { |
| bool test __attribute__((unused)) = true; |
| std::string str_01; |
| const std::string str_02("coltrane playing 'softly as a morning sunrise'"); |
| const std::string str_03("coltrane"); |
| |
| std::stringbuf isbuf_01(std::ios_base::in); |
| std::stringbuf isbuf_02(str_02, std::ios_base::in); |
| std::istream is_01(NULL); |
| std::istream is_02(&isbuf_02); |
| |
| std::ios_base::iostate state1, state2, statefail; |
| statefail = std::ios_base::failbit; |
| |
| // template<_CharT, _Traits> |
| // basic_istream& operator>>(istream&, _CharT*) |
| int n = 20; |
| char array1[n]; |
| typedef std::ios::traits_type ctraits_type; |
| |
| // testing with width() control enabled. |
| is_02.width(8); |
| state1 = is_02.rdstate(); |
| is_02 >> array1; // should snake "coltran" |
| state2 = is_02.rdstate(); |
| VERIFY( state1 == state2 ); |
| VERIFY( !ctraits_type::compare(array1, "coltran", 7) ); |
| |
| is_02.width(1); |
| state1 = is_02.rdstate(); |
| is_02 >> array1; // should snake nothing, set failbit |
| state2 = is_02.rdstate(); |
| VERIFY( state1 != state2 ); |
| VERIFY( state2 == statefail ); |
| VERIFY( array1[0] == '\0' ); |
| |
| is_02.width(8); |
| is_02.clear(); |
| state1 = is_02.rdstate(); |
| VERIFY( !state1 ); |
| is_02 >> array1; // should snake "e" |
| state2 = is_02.rdstate(); |
| VERIFY( state1 == state2 ); |
| VERIFY( !ctraits_type::compare(array1, "e", 1) ); |
| |
| // testing for correct exception setting |
| const std::string str_04(" impulse!!"); |
| std::stringbuf isbuf_03(str_04, std::ios_base::in); |
| std::stringbuf isbuf_04(str_04, std::ios_base::in); |
| std::istream is_03(&isbuf_03); |
| std::istream is_04(&isbuf_04); |
| |
| is_03 >> array1; |
| VERIFY( !ctraits_type::compare(array1,"impulse!!", 10) ); |
| VERIFY( is_03.rdstate() == std::ios_base::eofbit ); |
| |
| is_04.width(9); |
| is_04 >> array1; |
| VERIFY( ! std::ios::traits_type::compare(array1,"impulse!", 9) ); |
| VERIFY( !is_04.rdstate() ); |
| } |
| |
| int main() |
| { |
| test01(); |
| return 0; |
| } |