old-autovect-branch/libstdc++-v3/testsuite/27_io/basic_istream/read/wchar_t/1.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 // 27.6.1.3 unformatted input functions
  20
  21 #include <cwchar> // for wcsncmp,...
  22 #include <istream>
  23 #include <sstream>
  24 #include <testsuite_hooks.h>
  25
  26 void
  27 test01()
  28 {
  29   bool test __attribute__((unused)) = true;
  30   const std::wstring str_02(L"soul eyes: john coltrane quartet");
  31
  32   std::wstringbuf isbuf_03(str_02, std::ios_base::in);
  33   std::wstringbuf isbuf_04(str_02, std::ios_base::in);
  34
  35   std::wistream is_00(NULL);
  36   std::wistream is_03(&isbuf_03);
  37   std::wistream is_04(&isbuf_04);
  38   std::ios_base::iostate state1, state2, statefail, stateeof;
  39   statefail = std::ios_base::failbit;
  40   stateeof = std::ios_base::eofbit;
  41
  42   // istream& read(char_type* s, streamsize n)
  43   wchar_t carray[60] = L"";
  44   state1 = is_04.rdstate();
  45   is_04.read(carray, 0);
  46   state2 = is_04.rdstate();
  47   VERIFY( state1 == state2 );
  48
  49   state1 = is_04.rdstate();
  50   is_04.read(carray, 9);
  51   state2 = is_04.rdstate();
  52   VERIFY( state1 == state2 );
  53   VERIFY( !std::wcsncmp(carray, L"soul eyes", 9) );
  54   VERIFY( is_04.peek() == L':' );
  55
  56   state1 = is_03.rdstate();
  57   is_03.read(carray, 60);
  58   state2 = is_03.rdstate();
  59   VERIFY( state1 != state2 );
  60   VERIFY( static_cast<bool>(state2 & stateeof) );
  61   VERIFY( static_cast<bool>(state2 & statefail) );
  62   VERIFY( !std::wcsncmp(carray, L"soul eyes: john coltrane quartet", 35) );
  63 }
  64
  65 int
  66 main()
  67 {
  68   test01();
  69   return 0;
  70 }