libstdc++-v3/testsuite/27_io/fpos/mbstate_t/1.cc

   1 // 1999-09-20 bkoz
   2
   3 // Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009
   4 // Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21
  22 // 27.4.3 template class fpos
  23
  24 #include <cwchar> // for mbstate_t
  25 #include <ios>
  26 #include <cstring>
  27 #include <testsuite_hooks.h>
  28
  29 void test01()
  30 {
  31   bool test __attribute__((unused)) = true;
  32
  33   typedef std::mbstate_t state_type;
  34   state_type state01 = state_type();
  35   state_type state02 = state_type();
  36
  37   std::streampos pos01(0);
  38   std::streampos pos02(0);
  39
  40   // 27.4.3.1 fpos members
  41   // void state(state_type s);
  42   // state_type state();
  43
  44   // XXX Need to have better sanity checking for the mbstate_t type,
  45   // or whatever the insantiating type for class fpos happens to be
  46   // for streampos, as things like equality operators and assignment
  47   // operators, increment and deincrement operators need to be in
  48   // place.
  49   pos01.state(state02);
  50   state01 = pos01.state();
  51   test = std::memcmp(&state01, &state02, sizeof(state_type)) == 0;
  52   VERIFY( test );
  53 }
  54
  55 int main()
  56 {
  57   test01();
  58   return 0;
  59 }