| // 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. |
| |
| // 27.8.1.3 filebuf member functions |
| // @require@ %-*.tst %-*.txt |
| // @diff@ %-*.tst %-*.txt |
| |
| // various tests for filebuf::open() and filebuf::close() including |
| // the non-portable functionality in the libstdc++-v3 IO library |
| |
| #include <fstream> |
| #include <testsuite_hooks.h> |
| |
| const char name_01[] = "filebuf_members-1.tst"; |
| const char name_02[] = "filebuf_members-1.txt"; |
| |
| // Test member functions. |
| void test_01() |
| { |
| bool test __attribute__((unused)) = true; |
| const char* name_03 = "filebuf_members-3"; // empty file, need to create |
| |
| std::filebuf fb_01; // in |
| std::filebuf fb_02; // out |
| std::filebuf fb_03; // in | out |
| |
| // bool is_open() |
| VERIFY( !fb_01.is_open() ); |
| VERIFY( !fb_02.is_open() ); |
| VERIFY( !fb_03.is_open() ); |
| |
| // filebuf_type* open(const char* __s, ios_base::openmode __mode) |
| fb_01.open(name_01, std::ios_base::in | std::ios_base::ate); |
| VERIFY( fb_01.is_open() ); |
| |
| // Try to open two different files without closing the first: |
| // Should keep the old file attached, and disregard attempt to overthrow. |
| std::filebuf* f = fb_02.open(name_02, std::ios_base::in | std::ios_base::out |
| | std::ios_base::trunc); |
| VERIFY( f != NULL ); |
| VERIFY( fb_02.is_open() ); |
| |
| f = fb_02.open(name_03, std::ios_base::in | std::ios_base::out); |
| VERIFY( f == NULL ); |
| VERIFY( fb_02.is_open() ); |
| |
| fb_03.open(name_03, std::ios_base::out | std::ios_base::trunc); |
| VERIFY( fb_03.is_open() ); |
| } |
| |
| int |
| main() |
| { |
| test_01(); |
| return 0; |
| } |
| |
| |