libstdc++-v3/testsuite/27_io/basic_ostream/inserters_other/char/1.cc

   1 // 1999-08-16 bkoz
   2 // 1999-11-01 bkoz
   3
   4 // Copyright (C) 1999-2020 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 // { dg-require-fileio "" }
  26
  27 #include <ostream>
  28 #include <sstream>
  29 #include <fstream>
  30 #include <testsuite_hooks.h>
  31
  32 const int size = 1000;
  33 const char name_01[] = "ostream_inserter_other-1.tst";
  34 const char name_02[] = "ostream_inserter_other-1.txt";
  35 const char name_03[] = "ostream_inserter_other-2.tst";
  36 const char name_04[] = "ostream_inserter_other-2.txt";
  37
  38 // fstream
  39 void
  40 test02()
  41 {
  42   typedef std::ios_base::iostate iostate;
  43
  44   // basic_ostream<_CharT, _Traits>::operator<<(__streambuf_type* __sb)
  45   // filebuf-> NULL
  46   std::ifstream f_in1(name_01);
  47   std::ofstream f_out1(name_02);
  48   std::stringbuf* strbuf01 = 0;
  49   iostate state01 = f_in1.rdstate();
  50   f_in1 >> strbuf01;
  51   iostate state02 = f_in1.rdstate();
  52   VERIFY( state01 != state02 );
  53   VERIFY( (state02 & std::ios_base::failbit) != 0 );
  54   state01 = f_out1.rdstate();
  55   f_out1 << strbuf01;
  56   state02 = f_out1.rdstate();
  57   VERIFY( state01 != state02 );
  58   VERIFY( (state02 & std::ios_base::badbit) != 0 );
  59
  60   // filebuf->filebuf
  61   std::ifstream f_in(name_01);
  62   std::ofstream f_out(name_02);
  63   f_out << f_in.rdbuf();
  64   f_in.close();
  65   f_out.close();
  66
  67   // filebuf->stringbuf->filebuf
  68   std::ifstream f_in2(name_03);
  69   std::ofstream f_out2(name_04); // should be different name
  70   std::stringbuf strbuf02;
  71   f_in2 >> &strbuf02;
  72   f_out2 << &strbuf02;
  73   f_in2.close();
  74   f_out2.close();
  75 }
  76
  77 int
  78 main()
  79 {
  80   test02();
  81   return 0;
  82 }