2.cc

linux下编程用 编译软件

// Copyright (C) 2005 Free Software Foundation
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
// USA.

// 27.6.2.5.4 basic_ostream character inserters
// @require@ %-*.tst %-*.txt
// @diff@ %-*.tst %-*.txt

#include <ostream>
#include <fstream>
#include <testsuite_hooks.h>

// via Brent Verner <[e-mail]>
// http://gcc.gnu.org/ml/libstdc++/2000-06/msg00005.html
void
test03(void)
{
  using namespace std;

  typedef wios::pos_type 	pos_type;

  const char* TEST_IN = "wostream_inserter_other_in.txt";
  const char* TEST_OUT = "wostream_inserter_other_out.txt";
  pos_type i_read, i_wrote, rs, ws;
  double tf_size = BUFSIZ * 2.5;
  ofstream testfile(TEST_IN);

  for (int i = 0; i < tf_size; ++i)
    testfile.put(L'.');
  testfile.close();

  wifstream in(TEST_IN);
  wofstream out(TEST_OUT);
  out << in.rdbuf();
  in.seekg(0, ios_base::beg);
  out.seekp(0, ios_base::beg);
  rs = in.tellg();
  ws = out.tellp();
  in.seekg(0, ios_base::end);
  out.seekp(0, ios_base::end);
  i_read = in.tellg() - rs;
  i_wrote = out.tellp() - ws;
  in.close();
  out.close();
}

int 
main()
{
  test03();
  return 0;
}