| // Copyright (C) 2004-2013 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 3, 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 COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // { dg-require-fileio "" } |
| |
| // 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> |
| |
| void test01() |
| { |
| using namespace std; |
| typedef ios::off_type off_type; |
| typedef ios::pos_type pos_type; |
| |
| bool test __attribute__((unused)) = true; |
| const char str_lit01[] = "wistream_seeks-1.tst"; |
| |
| // in |
| wistringstream ist1; |
| pos_type p3 = ist1.tellg(); |
| |
| wifstream ifs1; |
| pos_type p4 = ifs1.tellg(); |
| |
| // N.B. We implement the resolution of DR 453 and |
| // istringstream::tellg() doesn't fail. |
| VERIFY( p3 == pos_type(off_type(0)) ); |
| VERIFY( p4 == pos_type(off_type(-1)) ); |
| |
| // in |
| // test ctors leave things in the same positions... |
| wistringstream ist2(L"bob_marley:kaya"); |
| p3 = ist2.tellg(); |
| |
| wifstream ifs2(str_lit01); |
| p4 = ifs2.tellg(); |
| |
| VERIFY( p3 == p4 ); |
| } |
| |
| int main() |
| { |
| test01(); |
| return 0; |
| } |