libstdc++-v3/testsuite/27_io/objects/wchar_t/7.cc

   1 // 2003-05-01 Petur Runolfsson  <peturr02@ru.is>
   2
   3 // Copyright (C) 2003 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // 27.3 Standard iostream objects
  22
  23 #include <fstream>
  24 #include <iostream>
  25 #include <unistd.h>
  26 #include <signal.h>
  27 #include <fcntl.h>
  28 #include <sys/types.h>
  29 #include <sys/stat.h>
  30 #include <testsuite_hooks.h>
  31
  32 // Check that wcout.flush() is called when last ios_base::Init is destroyed.
  33 void test07()
  34 {
  35   using namespace std;
  36   bool test __attribute__((unused)) = true;
  37
  38   const char* name = "tmp_fifo4";
  39
  40   signal(SIGPIPE, SIG_IGN);
  41
  42   unlink(name);
  43   mkfifo(name, S_IRWXU);
  44
  45   int child = fork();
  46   VERIFY( child != -1 );
  47
  48   if (child == 0)
  49     {
  50       wfilebuf fbout;
  51       sleep(1);
  52       fbout.open(name, ios_base::out);
  53       wcout.rdbuf(&fbout);
  54       fbout.sputc(L'a');
  55       sleep(2);
  56       // NB: fbout is *not* destroyed here!
  57       exit(0);
  58     }
  59
  60   wfilebuf fbin;
  61   fbin.open(name, ios_base::in);
  62   sleep(2);
  63   wfilebuf::int_type c = fbin.sbumpc();
  64   VERIFY( c != wfilebuf::traits_type::eof() );
  65   VERIFY( c == wfilebuf::traits_type::to_int_type(L'a') );
  66
  67   fbin.close();
  68 }
  69
  70 int
  71 main()
  72 {
  73   test07();
  74   return 0;
  75 }