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

   1 // { dg-require-namedlocale "en_US" }
   2 // { dg-require-fork "" }
   3 // { dg-require-mkfifo "" }
   4
   5 // 2004-04-16  Petur Runolfsson  <peturr02@ru.is>
   6
   7 // Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010
   8 // 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 #include <fstream>
  26 #include <locale>
  27 #include <cstdlib>
  28 #include <unistd.h>
  29 #include <signal.h>
  30 #include <fcntl.h>
  31 #include <sys/types.h>
  32 #include <sys/stat.h>
  33
  34 // No asserts, avoid leaking the semaphore if a VERIFY fails.
  35 #undef _GLIBCXX_ASSERT
  36
  37 #include <testsuite_hooks.h>
  38
  39 // libstdc++/14975
  40 bool test01()
  41 {
  42   using namespace std;
  43   using namespace __gnu_test;
  44   bool test __attribute__((unused)) = true;
  45
  46   locale loc_us = locale("en_US");
  47
  48   const char* name = "tmp_14975-2";
  49
  50   signal(SIGPIPE, SIG_IGN);
  51
  52   unlink(name);
  53   mkfifo(name, S_IRWXU);
  54   semaphore s1;
  55
  56   int child = fork();
  57   VERIFY( child != -1 );
  58
  59   if (child == 0)
  60     {
  61       {
  62         filebuf fbin;
  63         fbin.open(name, ios_base::in);
  64       }
  65       s1.signal();
  66       exit(0);
  67     }
  68
  69   wfilebuf fb;
  70   fb.pubimbue(loc_us);
  71   wfilebuf* ret = fb.open(name, ios_base::out);
  72   VERIFY( ret != 0 );
  73   VERIFY( fb.is_open() );
  74
  75   s1.wait();
  76
  77   try
  78     {
  79       fb.sputc(L'a');
  80       fb.sputc(L'b');
  81       fb.pubimbue(locale::classic());
  82       fb.sputc(L'c');
  83       fb.close();
  84     }
  85   catch (std::exception&)
  86     {
  87     }
  88
  89   return test;
  90 }
  91
  92 int main()
  93 {
  94   return !test01();
  95 }