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// { dg-require-mkfifo "" }
// Copyright (C) 2001-2015 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/>.
// 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 <unistd.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <testsuite_hooks.h>
// libstdc++/9507
void test_06()
{
using namespace __gnu_test;
bool test __attribute__((unused)) = true;
const char* name = "tmp_fifo2";
signal(SIGPIPE, SIG_IGN);
unlink(name);
mkfifo(name, S_IRWXU);
std::filebuf fbuf;
// The use of ios_base::ate implies an attempt to seek on the file
// descriptor. The seek will fail. Thus, at the OS level, this
// call to "fbuf.open" will result in a call to "open" (which will
// succeed), a call to "lseek" (which will fail), and, finally, a
// call to "close" (which will succeed). Thus, after this call, the
// file should be closed.
std::filebuf* r = fbuf.open(name,
std::ios_base::in
| std::ios_base::out
| std::ios_base::ate);
if (!r)
VERIFY( !fbuf.is_open() );
else
VERIFY( fbuf.is_open() );
}
int
main()
{
test_06();
return 0;
}
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