libstdc++-v3/testsuite/27_io/basic_filebuf/imbue/char/13171-2.cc

   1 // { dg-require-namedlocale "fr_FR.ISO8859-15" }
   2 // { dg-require-namedlocale "en_US.ISO8859-1" }
   3 // { dg-require-fork "" }
   4 // { dg-require-mkfifo "" }
   5
   6 // Copyright (C) 2003-2017 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 3, 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 COPYING3.  If not see
  21 // <http://www.gnu.org/licenses/>.
  22
  23 // 27.8.1.4 Overridden virtual functions
  24
  25 #include <fstream>
  26 #include <locale>
  27 #include <cstdlib>
  28
  29 #include <sys/types.h>
  30 #include <sys/stat.h>
  31
  32 #include <testsuite_hooks.h>
  33
  34 // libstdc++/13171
  35 bool test01()
  36 {
  37   bool test = true;
  38   using namespace std;
  39   using namespace __gnu_test;
  40
  41   locale loc_fr(locale(ISO_8859(15,fr_FR)));
  42   locale loc_en(locale(ISO_8859(1,en_US)));
  43
  44   const char* name = "tmp_fifo_13171-2";
  45   unlink(name);
  46   mkfifo(name, S_IRWXU);
  47   semaphore s1, s2;
  48
  49   int child = fork();
  50   if (child == 0)
  51     {
  52       filebuf fb;
  53       fb.open(name, ios_base::out);
  54       fb.sputc('S');
  55       fb.pubsync();
  56       s1.signal();
  57       s2.wait();
  58       fb.close();
  59       exit(0);
  60     }
  61
  62   filebuf fb;
  63   fb.pubimbue(loc_fr);
  64   fb.open(name, ios_base::in);
  65   s1.wait();
  66   test &= bool( fb.is_open() );
  67   fb.pubimbue(loc_en);
  68   filebuf::int_type c = fb.sgetc();
  69   fb.close();
  70   test &= bool( c == 'S' );
  71   s2.signal();
  72
  73   return test;
  74 }
  75
  76 int main()
  77 {
  78   return !test01();
  79 }