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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();
}