libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/wchar_t/14975-2.cc

   1 // { dg-require-fork "" }
   2 // { dg-require-mkfifo "" }
   3
   4 // 2004-04-16  Petur Runolfsson  <peturr02@ru.is>
   5
   6 // Copyright (C) 2004, 2005 Free Software Foundation, Inc.
   7 //
   8 // This file is part of the GNU ISO C++ Library.  This library is free
   9 // software; you can redistribute it and/or modify it under the
  10 // terms of the GNU General Public License as published by the
  11 // Free Software Foundation; either version 2, or (at your option)
  12 // any later version.
  13
  14 // This library is distributed in the hope that it will be useful,
  15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 // GNU General Public License for more details.
  18
  19 // You should have received a copy of the GNU General Public License along
  20 // with this library; see the file COPYING.  If not, write to the Free
  21 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  22 // USA.
  23
  24 #include <fstream>
  25 #include <locale>
  26 #include <unistd.h>
  27 #include <signal.h>
  28 #include <fcntl.h>
  29 #include <sys/types.h>
  30 #include <sys/stat.h>
  31 #include <testsuite_hooks.h>
  32
  33 // libstdc++/14975
  34 void test01()
  35 {
  36   using namespace std;
  37   using namespace __gnu_test;
  38   bool test __attribute__((unused)) = true;
  39
  40   locale loc_us = try_named_locale("en_US");
  41
  42   const char* name = "tmp_14975-2";
  43
  44   signal(SIGPIPE, SIG_IGN);
  45
  46   unlink(name);
  47   mkfifo(name, S_IRWXU);
  48   semaphore s1;
  49
  50   int child = fork();
  51   VERIFY( child != -1 );
  52
  53   if (child == 0)
  54     {
  55       {
  56         filebuf fbin;
  57         fbin.open(name, ios_base::in);
  58       }
  59       s1.signal ();
  60       exit(0);
  61     }
  62
  63   wfilebuf fb;
  64   fb.pubimbue(loc_us);
  65   wfilebuf* ret = fb.open(name, ios_base::out);
  66   VERIFY( ret != NULL );
  67   VERIFY( fb.is_open() );
  68
  69   s1.wait ();
  70
  71   try
  72     {
  73       fb.sputc(L'a');
  74       fb.sputc(L'b');
  75       fb.pubimbue(locale::classic());
  76       fb.sputc(L'c');
  77       fb.close();
  78     }
  79   catch (std::exception&)
  80     {
  81     }
  82 }
  83
  84 int main()
  85 {
  86   test01();
  87   return 0;
  88 }