libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/char/13582-2.cc

   1 // { dg-require-namedlocale "" }
   2 // { dg-require-fork "" }
   3 // { dg-require-mkfifo "" }
   4
   5 // 2004-01-11  Petur Runolfsson  <peturr02@ru.is>
   6
   7 // Copyright (C) 2004, 2005, 2006, 2007 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 2, 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 COPYING.  If not, write to the Free
  22 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  23 // USA.
  24
  25 // 27.8.1.4 Overridden virtual functions
  26
  27 #include <fstream>
  28 #include <locale>
  29 #include <cstdlib>
  30
  31 #include <unistd.h>
  32 #include <sys/types.h>
  33 #include <sys/stat.h>
  34
  35 #include <testsuite_hooks.h>
  36
  37 // libstdc++/13582
  38 void test01()
  39 {
  40   bool test __attribute__((unused)) = true;
  41   using namespace std;
  42   using namespace __gnu_test;
  43
  44   locale loc_en(locale("en_US"));
  45   locale loc_fr(locale("fr_FR"));
  46
  47   const char* name = "tmp_fifo_13582-2";
  48   unlink(name);
  49   mkfifo(name, S_IRWXU);
  50
  51   int child = fork();
  52   if (child == 0)
  53     {
  54       filebuf fbout;
  55       fbout.open(name, ios_base::out);
  56       fbout.sputn("12345", 5);
  57       fbout.pubsync();
  58       fbout.close();
  59       exit(0);
  60     }
  61
  62   filebuf fbin;
  63   fbin.open(name, ios_base::in);
  64   filebuf::int_type n = fbin.sbumpc();
  65   VERIFY( n == '1' );
  66   fbin.pubimbue(loc_en);
  67   n = fbin.sbumpc();
  68   VERIFY( n == '2' );
  69   fbin.pubimbue(loc_fr);
  70   n = fbin.sbumpc();
  71   VERIFY( n == '3' );
  72   n = fbin.sbumpc();
  73   VERIFY( n == '4' );
  74   n = fbin.sbumpc();
  75   VERIFY( n == '5' );
  76   n = fbin.sbumpc();
  77   VERIFY( n == filebuf::traits_type::eof() );
  78 }
  79
  80 int main()
  81 {
  82   test01();
  83   return 0;
  84 }