libstdc++-v3/testsuite/27_io/basic_istream/read/wchar_t/2.cc

   1 // Copyright (C) 2004-2013 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // 27.6.1.3 unformatted input functions
  19
  20 #include <istream>
  21 #include <sstream>
  22 #include <testsuite_hooks.h>
  23
  24 // Jim Parsons <parsons at clearway dot com>
  25 // http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00177.html
  26 void
  27 test04()
  28 {
  29   bool test __attribute__((unused)) = true;
  30
  31   const std::wstring str_00(L"Red_Garland_Qunitet-Soul_Junction");
  32   wchar_t c_array[str_00.size() + 4];
  33
  34   std::wstringbuf isbuf_00(str_00, std::ios_base::in);
  35   std::wistream is_00(&isbuf_00);
  36   std::ios_base::iostate state1, statefail, stateeof;
  37   statefail = std::ios_base::failbit;
  38   stateeof = std::ios_base::eofbit;
  39
  40   state1 = stateeof | statefail;
  41   VERIFY( is_00.gcount() == 0 );
  42   is_00.read(c_array, str_00.size() + 1);
  43   VERIFY( is_00.gcount() == static_cast<std::streamsize>(str_00.size()) );
  44   VERIFY( is_00.rdstate() == state1 );
  45
  46   is_00.read(c_array, str_00.size());
  47   VERIFY( is_00.rdstate() == state1 );
  48 }
  49
  50 int
  51 main()
  52 {
  53   test04();
  54   return 0;
  55 }