old-autovect-branch/libstdc++-v3/testsuite/27_io/basic_istream/extractors_character/wchar_t/2.cc

   1 // Copyright (C) 2004 Free Software Foundation
   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 2, 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 COPYING.  If not, write to the Free
  16 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  17 // USA.
  18
  19 // 27.6.1.2.3 character extractors
  20
  21 #include <istream>
  22 #include <sstream>
  23 #include <testsuite_hooks.h>
  24
  25 void test02()
  26 {
  27   bool test __attribute__((unused)) = true;
  28   std::wstring str_01;
  29   const std::wstring str_02(L"or coltrane playing tunji with jimmy garrison");
  30   const std::wstring str_03(L"coltrane");
  31
  32   std::wstringbuf isbuf_01(std::ios_base::in);
  33   std::wstringbuf isbuf_02(str_02, std::ios_base::in);
  34   std::wistream is_01(NULL);
  35   std::wistream is_02(&isbuf_02);
  36   std::ios_base::iostate state1, state2, statefail;
  37   statefail = std::ios_base::failbit;
  38
  39   // template<_CharT, _Traits>
  40   //  basic_istream& operator>>(istream&, _CharT&)
  41   wchar_t c1 = L'c', c2 = L'c';
  42   state1 = is_01.rdstate();
  43   is_01 >> c1;
  44   state2 = is_01.rdstate();
  45   VERIFY( state1 != state2 );
  46   VERIFY( c1 == c2 );
  47   VERIFY( static_cast<bool>(state2 & statefail) );
  48
  49   state1 = is_02.rdstate();
  50   is_02 >> c1;
  51   state2 = is_02.rdstate();
  52   VERIFY( state1 == state2 );
  53   VERIFY( c1 == L'o' );
  54   is_02 >> c1;
  55   is_02 >> c1;
  56   VERIFY( c1 == L'c' );
  57   VERIFY( !static_cast<bool>(state2 & statefail) );
  58 }
  59
  60 int main()
  61 {
  62   test02();
  63   return 0;
  64 }