| // 2003-05-03 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. |
| |
| // 27.8.1.4 Overridden virtual functions |
| |
| #include <fstream> |
| #include <locale> |
| #include <string> |
| #include <testsuite_hooks.h> |
| |
| // Check that basic_filebuf::underflow() handles |
| // codecvt::always_noconv() == false and codecvt::in() == noconv. |
| class NoconvCvt : public std::codecvt<char, char, std::mbstate_t> |
| { |
| protected: |
| virtual bool |
| do_always_noconv() const throw() |
| { return false; } |
| |
| virtual result |
| do_in(state_type&, const char* from, const char*, const char*& from_next, |
| char* to, char*, char*& to_next) |
| { |
| from_next = from; |
| to_next = to; |
| return noconv; |
| } |
| }; |
| |
| void test01() |
| { |
| using namespace std; |
| bool test __attribute__((unused)) = true; |
| const char* name = "filebuf_virtuals-1.txt"; |
| |
| string str; |
| filebuf fb; |
| filebuf::int_type c1; |
| |
| if (fb.open(name, ios_base::in)) |
| { |
| while ((c1 = fb.sbumpc()) != EOF) |
| str.push_back(filebuf::traits_type::to_char_type(c1)); |
| fb.close(); |
| } |
| |
| locale loc(locale::classic(), new NoconvCvt); |
| fb.pubimbue(loc); |
| |
| if (fb.open(name, ios_base::in)) |
| { |
| for (string::iterator i = str.begin(); i != str.end(); ++i) |
| { |
| c1 = fb.sbumpc(); |
| VERIFY( c1 != filebuf::traits_type::eof() ); |
| VERIFY( c1 == filebuf::traits_type::to_int_type(*i) ); |
| } |
| VERIFY( fb.sgetc() == filebuf::traits_type::eof() ); |
| fb.close(); |
| } |
| } |
| |
| int main() |
| { |
| test01(); |
| return 0; |
| } |