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

   1 // { dg-require-namedlocale "en_US.ISO8859-1" }
   2 // { dg-require-namedlocale "fr_FR.ISO8859-15" }
   3 // { dg-require-fork "" }
   4 // { dg-require-mkfifo "" }
   5
   6 // 2004-01-11  Petur Runolfsson  <peturr02@ru.is>
   7
   8 // Copyright (C) 2004-2020 Free Software Foundation, Inc.
   9 //
  10 // This file is part of the GNU ISO C++ Library.  This library is free
  11 // software; you can redistribute it and/or modify it under the
  12 // terms of the GNU General Public License as published by the
  13 // Free Software Foundation; either version 3, or (at your option)
  14 // any later version.
  15
  16 // This library is distributed in the hope that it will be useful,
  17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 // GNU General Public License for more details.
  20
  21 // You should have received a copy of the GNU General Public License along
  22 // with this library; see the file COPYING3.  If not see
  23 // <http://www.gnu.org/licenses/>.
  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   using namespace std;
  41   using namespace __gnu_test;
  42
  43   locale loc_en(locale(ISO_8859(1,en_US)));
  44   locale loc_fr(locale(ISO_8859(15,fr_FR)));
  45
  46   const char* name = "tmp_fifo_13582-2";
  47   unlink(name);
  48   mkfifo(name, S_IRWXU);
  49
  50   int child = fork();
  51   if (child == 0)
  52     {
  53       filebuf fbout;
  54       fbout.open(name, ios_base::out);
  55       fbout.sputn("12345", 5);
  56       fbout.pubsync();
  57       fbout.close();
  58       exit(0);
  59     }
  60
  61   filebuf fbin;
  62   fbin.open(name, ios_base::in);
  63   filebuf::int_type n = fbin.sbumpc();
  64   VERIFY( n == '1' );
  65   fbin.pubimbue(loc_en);
  66   n = fbin.sbumpc();
  67   VERIFY( n == '2' );
  68   fbin.pubimbue(loc_fr);
  69   n = fbin.sbumpc();
  70   VERIFY( n == '3' );
  71   n = fbin.sbumpc();
  72   VERIFY( n == '4' );
  73   n = fbin.sbumpc();
  74   VERIFY( n == '5' );
  75   n = fbin.sbumpc();
  76   VERIFY( n == filebuf::traits_type::eof() );
  77 }
  78
  79 int main()
  80 {
  81   test01();
  82   return 0;
  83 }