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

   1 // { dg-require-namedlocale "en_US.ISO8859-1" }
   2 // { dg-require-fork "" }
   3 // { dg-require-mkfifo "" }
   4
   5 // 2004-04-16  Petur Runolfsson  <peturr02@ru.is>
   6
   7 // Copyright (C) 2004-2019 Free Software Foundation, Inc.
   8 //
   9 // This file is part of the GNU ISO C++ Library.  This library is free
  10 // software; you can redistribute it and/or modify it under the
  11 // terms of the GNU General Public License as published by the
  12 // Free Software Foundation; either version 3, or (at your option)
  13 // any later version.
  14
  15 // This library is distributed in the hope that it will be useful,
  16 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 // GNU General Public License for more details.
  19
  20 // You should have received a copy of the GNU General Public License along
  21 // with this library; see the file COPYING3.  If not see
  22 // <http://www.gnu.org/licenses/>.
  23
  24 #include <fstream>
  25 #include <locale>
  26 #include <cstdlib>
  27 #include <unistd.h>
  28 #include <signal.h>
  29 #include <fcntl.h>
  30 #include <sys/types.h>
  31 #include <sys/stat.h>
  32
  33 #include <testsuite_hooks.h>
  34
  35 // libstdc++/14975
  36 bool test01()
  37 {
  38   using namespace std;
  39   using namespace __gnu_test;
  40   bool test = true;
  41
  42   locale loc_us = locale(ISO_8859(1,en_US));
  43
  44   const char* name = "tmp_14975-2";
  45
  46   signal(SIGPIPE, SIG_IGN);
  47
  48   unlink(name);
  49   mkfifo(name, S_IRWXU);
  50   semaphore s1;
  51
  52   int child = fork();
  53   test &= bool( child != -1 );
  54
  55   if (child == 0)
  56     {
  57       {
  58         filebuf fbin;
  59         fbin.open(name, ios_base::in);
  60       }
  61       s1.signal();
  62       exit(0);
  63     }
  64
  65   wfilebuf fb;
  66   fb.pubimbue(loc_us);
  67   wfilebuf* ret = fb.open(name, ios_base::out);
  68   test &= bool( ret != 0 );
  69   test &= bool( fb.is_open() );
  70
  71   s1.wait();
  72
  73   try
  74     {
  75       fb.sputc(L'a');
  76       fb.sputc(L'b');
  77       fb.pubimbue(locale::classic());
  78       fb.sputc(L'c');
  79       fb.close();
  80     }
  81   catch (std::exception&)
  82     {
  83     }
  84
  85   return test;
  86 }
  87
  88 int main()
  89 {
  90   return !test01();
  91 }