libstdc++-v3/testsuite/27_io/basic_istream/read/char/2.cc

   1 // 1999-08-11 bkoz
   2
   3 // Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation
   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 // 27.6.1.3 unformatted input functions
  22
  23 #include <istream>
  24 #include <sstream>
  25 #include <testsuite_hooks.h>
  26
  27 // Jim Parsons <parsons at clearway dot com>
  28 // http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00177.html
  29 void
  30 test04()
  31 {
  32   bool test __attribute__((unused)) = true;
  33
  34   const std::string str_00("Red_Garland_Qunitet-Soul_Junction");
  35   char c_array[str_00.size() + 4];
  36
  37   std::stringbuf isbuf_00(str_00, std::ios_base::in);
  38   std::istream is_00(&isbuf_00);
  39   std::ios_base::iostate state1, statefail, stateeof;
  40   statefail = std::ios_base::failbit;
  41   stateeof = std::ios_base::eofbit;
  42
  43   state1 = stateeof | statefail;
  44   VERIFY( is_00.gcount() == 0 );
  45   is_00.read(c_array, str_00.size() + 1);
  46   VERIFY( is_00.gcount() == static_cast<std::streamsize>(str_00.size()) );
  47   VERIFY( is_00.rdstate() == state1 );
  48
  49   is_00.read(c_array, str_00.size());
  50   VERIFY( is_00.rdstate() == state1 );
  51 }
  52
  53 int
  54 main()
  55 {
  56   test04();
  57   return 0;
  58 }