old-autovect-branch/libstdc++-v3/testsuite/27_io/basic_istream/seekg/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 // 27.6.1.3 unformatted input functions
  20 // DR 60 -- seekg does not effect calls to gcount
  21
  22 #include <istream>
  23 #include <sstream>
  24 #include <testsuite_hooks.h>
  25
  26 void test01()
  27 {
  28   using namespace std;
  29   bool test __attribute__((unused)) = true;
  30
  31   wistringstream ist(L"the lamb lies down on broadway");
  32   wios::pos_type pos = ist.tellg();
  33   ist.ignore(4);
  34   int count1 = ist.gcount();
  35   ist.seekg(pos);
  36   int count2 = ist.gcount();
  37   VERIFY( count1 == count2 );
  38   ist.seekg(wios::off_type(pos), wios::beg);
  39   count2 = ist.gcount();
  40   VERIFY( count1 == count2 );
  41 }
  42
  43 int main()
  44 {
  45   test01();
  46   return 0;
  47 }