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// { dg-require-namedlocale "en_US" }

// { dg-require-fork "" }

// { dg-require-mkfifo "" }

// 2004-04-16  Petur Runolfsson  <peturr02@ru.is>

// Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010

// 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/>.

#include <fstream>

#include <locale>

#include <cstdlib>

#include <unistd.h>

#include <signal.h>

#include <fcntl.h>

#include <sys/types.h>

#include <sys/stat.h>

// No asserts, avoid leaking the semaphore if a VERIFY fails.

#undef _GLIBCXX_ASSERT

#include <testsuite_hooks.h>

// libstdc++/14975

bool test01()

{

  using namespace std;

  using namespace __gnu_test;

  bool test __attribute__((unused)) = true;

  locale loc_us = locale("en_US");

  const char* name = "tmp_14975-2";

  signal(SIGPIPE, SIG_IGN);

  unlink(name);

  mkfifo(name, S_IRWXU);

  semaphore s1;

  int child = fork();

  VERIFY( child != -1 );

  if (child == 0)

    {

      {

        filebuf fbin;

        fbin.open(name, ios_base::in);

      }

      s1.signal();

      exit(0);

    }

  wfilebuf fb;

  fb.pubimbue(loc_us);

  wfilebuf* ret = fb.open(name, ios_base::out);

  VERIFY( ret != 0 );

  VERIFY( fb.is_open() );

  s1.wait();

  try

    {

      fb.sputc(L'a');

      fb.sputc(L'b');

      fb.pubimbue(locale::classic());

      fb.sputc(L'c');

      fb.close();

    }

  catch (std::exception&)

    {

    }

  return test;

}

int main()

{

  return !test01();

}