| // Derived from libstdc++/12048 by LJR <ljrittle@acm.org> with |
| // reminder from Petur Runolfsson <peturr02@ru.is>. |
| |
| // Copyright (C) 2003 Free Software Foundation, Inc. |
| // |
| // 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. |
| |
| // DR 49 states that cin.rdbuf()->sbumpc() and fgetc(stdin) should be |
| // equivalent and interchangable. Currently however, cin.rdbuf()->sungetc() |
| // only returns characters that were read with cin.rdbuf()->sbumpc() |
| |
| // { dg-do run { xfail *-*-* } } |
| |
| #include <iostream> |
| #include <cstdio> |
| #include <testsuite_hooks.h> |
| |
| void |
| test01() |
| { |
| std::freopen("cin_unget-1.txt", "r", stdin); |
| |
| char c1; |
| int c2; |
| char c3; |
| std::cin.get(c1); |
| c2 = std::fgetc(stdin); |
| std::cin.unget(); |
| if (std::cin.good()) |
| { |
| std::cin.get(c3); |
| VERIFY( std::cin.good() ); |
| VERIFY( c3 == std::char_traits<char>::to_char_type(c2) ); |
| } |
| } |
| |
| int main(void) |
| { |
| test01(); |
| return 0; |
| } |