libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/2.cc

   1 // 1999-08-16 bkoz
   2 // 1999-11-01 bkoz
   3
   4 // Copyright (C) 1999-2022 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 // 27.6.2.5.4 basic_ostream character inserters
  22 // @require@ %-*.tst %-*.txt
  23 // @diff@ %-*.tst %-*.txt
  24
  25 #include <ostream>
  26 #include <fstream>
  27 #include <testsuite_hooks.h>
  28
  29 // via Brent Verner <brent@rcfile.org>
  30 // http://gcc.gnu.org/ml/libstdc++/2000-06/msg00005.html
  31 void
  32 test03(void)
  33 {
  34   using namespace std;
  35
  36   typedef ios::pos_type         pos_type;
  37
  38   const char* TEST_IN = "ostream_inserter_other_in";
  39   const char* TEST_OUT = "ostream_inserter_other_out";
  40   pos_type i_read, i_wrote, rs, ws;
  41   double tf_size = BUFSIZ * 2.5;
  42   ofstream testfile(TEST_IN);
  43
  44   for (int i = 0; i < tf_size; ++i)
  45     testfile.put('.');
  46   testfile.close();
  47
  48   ifstream in(TEST_IN);
  49   ofstream out(TEST_OUT);
  50   out << in.rdbuf();
  51   in.seekg(0, ios_base::beg);
  52   out.seekp(0, ios_base::beg);
  53   rs = in.tellg();
  54   ws = out.tellp();
  55   in.seekg(0, ios_base::end);
  56   out.seekp(0, ios_base::end);
  57   i_read = in.tellg() - rs;
  58   i_wrote = out.tellp() - ws;
  59   in.close();
  60   out.close();
  61 }
  62
  63 int
  64 main()
  65 {
  66   test03();
  67   return 0;
  68 }