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2001-12-17 Phil Edwards <pme@gcc.gnu.org> * include/bits/basic_file.h (__basic_file::fd): New function. * config/io/basic_file_stdio.h (__basic_file::fd): Define. * include/bits/std_fstream.h (basic_filebuf::fd): New function. * include/bits/fstream.tcc (basic_filebuf::fd): Define. * testsuite/27_io/filebuf_members.cc (test_02): New test. From-SVN: r48107
107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
// Copyright (C) 2001 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 2, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING. If not, write to the Free
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// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// USA.
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// 27.8.1.3 filebuf member functions
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// @require@ %-*.tst %-*.txt
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// @diff@ %-*.tst %-*.txt
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// various tests for filebuf::open() and filebuf::close() including
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// the non-portable functionality in the libstdc++-v3 IO library
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#include <fstream>
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#include <unistd.h>
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#include <fcntl.h>
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#include <testsuite_hooks.h>
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// verify that std::filebuf doesn't close files that it didn't open
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// when using the following std::filebuf ctor:
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//
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// std::filebuf(__c_file_type* __f,
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// ios_base::openmode __mode,
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// int_type __s);
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//
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// thanks to "George T. Talbot" <george@moberg.com> for uncovering
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// this bug/situation.
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const char name_01[] = "filebuf_members-1.tst";
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const char name_02[] = "filebuf_members-1.txt";
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int
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test_01()
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{
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bool test = true;
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int close_num;
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// read (ext)
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FILE* f2 = fopen(name_01, "r");
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VERIFY( f2 != NULL );
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{
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std::filebuf fb(f2, std::ios_base::in, 512);
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}
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close_num = fclose(f2);
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VERIFY( close_num == 0 );
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// read (standard)
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FILE* f = fopen(name_01, "r");
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VERIFY( f != NULL );
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{
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std::ifstream ifstream1(name_01);
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VERIFY( ifstream1.is_open() );
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std::ios_base::iostate st01 = ifstream1.rdstate();
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VERIFY( st01 == std::ios_base::goodbit );
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}
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close_num = fclose(f);
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VERIFY( close_num == 0 );
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#ifdef DEBUG_ASSERT
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assert(test);
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#endif
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return test;
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}
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int
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test_02()
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{
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int first_fd = ::open(name_01, O_RDONLY);
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VERIFY( first_fd != -1 );
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FILE* first_file = ::fdopen(first_fd, "r");
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VERIFY( first_file != NULL );
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std::filebuf fb (first_file, std::ios_base::in);
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int second_fd = fb.fd();
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bool test = first_fd == second_fd;
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#ifdef DEBUG_ASSERT
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assert(test);
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#endif
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return test;
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}
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int
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main()
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{
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test_01();
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test_02();
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return 0;
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}
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