| // 2001-05-21 Benjamin Kosnik <bkoz@redhat.com> |
| |
| // Copyright (C) 2001, 2002, 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 <testsuite_hooks.h> |
| |
| const char name_08[] = "filebuf_virtuals-8.txt"; // empty file, need to create |
| |
| class OverBuf : public std::filebuf |
| { |
| public: |
| int_type pub_overflow(int_type c = traits_type::eof()) |
| { return std::filebuf::overflow(c); } |
| }; |
| |
| // libstdc++/9988 |
| // filebuf::overflow writes EOF to file |
| void test15() |
| { |
| using namespace std; |
| bool test __attribute__((unused)) = true; |
| |
| OverBuf fb; |
| fb.open(name_08, ios_base::out | ios_base::trunc); |
| |
| fb.sputc('a'); |
| fb.pub_overflow('b'); |
| fb.pub_overflow(); |
| fb.sputc('c'); |
| fb.close(); |
| |
| filebuf fbin; |
| fbin.open(name_08, ios_base::in); |
| filebuf::int_type c; |
| c = fbin.sbumpc(); |
| VERIFY( c == 'a' ); |
| c = fbin.sbumpc(); |
| VERIFY( c == 'b' ); |
| c = fbin.sbumpc(); |
| VERIFY( c == 'c' ); |
| c = fbin.sbumpc(); |
| VERIFY( c == filebuf::traits_type::eof() ); |
| fbin.close(); |
| } |
| |
| int main() |
| { |
| test15(); |
| return 0; |
| } |