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

   1 // 1999-09-20 bkoz
   2
   3 // Copyright (C) 1999, 2001, 2003 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 // 27.4.3 template class fpos
  31
  32 #include <cwchar> // for mbstate_t
  33 #include <ios>
  34 #include <testsuite_hooks.h>
  35
  36 void test01()
  37 {
  38   bool test __attribute__((unused)) = true;
  39
  40   typedef std::mbstate_t state_type;
  41   state_type state01 = state_type();
  42   state_type state02 = state_type();
  43
  44   std::streampos pos01(0);
  45   std::streampos pos02(0);
  46
  47   // 27.4.3.1 fpos members
  48   // void state(state_type s);
  49   // state_type state();
  50
  51   // XXX Need to have better sanity checking for the mbstate_t type,
  52   // or whatever the insantiating type for class fpos happens to be
  53   // for streampos, as things like equality operators and assignment
  54   // operators, increment and deincrement operators need to be in
  55   // place.
  56   pos01.state(state02);
  57   state01 = pos01.state();
  58   test = memcmp(&state01, &state02, sizeof(state_type)) == 0;
  59   VERIFY( test );
  60 }
  61
  62 int main()
  63 {
  64   test01();
  65   return 0;
  66 }