libstdc++-v3/testsuite/27_io/ostream_inserter_other.cc

   1 // 1999-08-16 bkoz
   2 // 1999-11-01 bkoz
   3
   4 // Copyright (C) 1999, 2000, 2001 Free Software Foundation
   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 2, 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 COPYING.  If not, write to the Free
  19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20 // USA.
  21
  22 // 27.6.2.5.4 basic_ostream character inserters
  23 // @require@ %-*.tst %-*.txt
  24 // @diff@ %-*.tst %-*.txt
  25
  26 #include <ostream>
  27 #include <sstream>
  28 #include <fstream>
  29 #include <testsuite_hooks.h>
  30
  31 const int size = 1000;
  32 const char name_01[] = "ostream_inserter_other-1.tst";
  33 const char name_02[] = "ostream_inserter_other-1.txt";
  34 const char name_03[] = "ostream_inserter_other-2.tst";
  35 const char name_04[] = "ostream_inserter_other-2.txt";
  36
  37
  38 // stringstream
  39 int
  40 test01()
  41 {
  42   bool test = true;
  43 #ifdef DEBUG_ASSERT
  44   assert(test);
  45 #endif
  46   return 0;
  47 }
  48
  49 // fstream
  50 int
  51 test02()
  52 {
  53   typedef std::ios_base::iostate iostate;
  54   bool test = true;
  55
  56   // basic_ostream<_CharT, _Traits>::operator<<(__streambuf_type* __sb)
  57   // filebuf-> NULL
  58   std::ifstream f_in1(name_01);
  59   std::ofstream f_out1(name_02);
  60   std::stringbuf* strbuf01 = NULL;
  61   iostate state01 = f_in1.rdstate();
  62   f_in1 >> strbuf01;
  63   iostate state02 = f_in1.rdstate();
  64   VERIFY( state01 != state02 );
  65   VERIFY( (state02 & std::ios_base::failbit) != 0 );
  66   state01 = f_out1.rdstate();
  67   f_out1 << strbuf01;
  68   state02 = f_out1.rdstate();
  69   VERIFY( state01 != state02 );
  70   VERIFY( (state02 & std::ios_base::failbit) != 0 );
  71
  72   // filebuf->filebuf
  73   std::ifstream f_in(name_01);
  74   std::ofstream f_out(name_02);
  75   f_out << f_in.rdbuf();
  76   f_in.close();
  77   f_out.close();
  78
  79   // filebuf->stringbuf->filebuf
  80   std::ifstream f_in2(name_03);
  81   std::ofstream f_out2(name_04); // should be different name
  82   std::stringbuf strbuf02;
  83   f_in2 >> &strbuf02;
  84   f_out2 << &strbuf02;
  85   f_in2.close();
  86   f_out2.close();
  87
  88   // no characters inserted
  89
  90 #ifdef DEBUG_ASSERT
  91   assert(test);
  92 #endif
  93
  94   return 0;
  95 }
  96
  97 // via Brent Verner <brent@rcfile.org>
  98 // http://gcc.gnu.org/ml/libstdc++/2000-06/msg00005.html
  99 int
 100 test03(void)
 101 {
 102   using namespace std;
 103
 104   typedef ios::pos_type         pos_type;
 105
 106   const char* TEST_IN = "ostream_inserter_other_in";
 107   const char* TEST_OUT = "ostream_inserter_other_out";
 108   pos_type i_read, i_wrote, rs, ws;
 109   double tf_size = BUFSIZ * 2.5;
 110   ofstream testfile(TEST_IN);
 111
 112   for (int i = 0; i < tf_size; ++i)
 113     testfile.put('.');
 114   testfile.close();
 115
 116   ifstream in(TEST_IN);
 117   ofstream out(TEST_OUT);
 118   out << in.rdbuf();
 119   in.seekg(0,ios_base::beg);
 120   out.seekp(0,ios_base::beg);
 121   rs = in.tellg();
 122   ws = out.tellp();
 123   in.seekg(0,ios_base::end);
 124   out.seekp(0,ios_base::end);
 125   i_read = in.tellg() - rs;
 126   i_wrote = out.tellp() - ws;
 127   in.close();
 128   out.close();
 129
 130 #ifdef DEBUG_ASSERT
 131   assert(i_read == i_wrote);
 132 #endif
 133
 134   return 0;
 135 }
 136
 137 // libstdc++/3272
 138 void test04()
 139 {
 140   using namespace std;
 141   bool test = true;
 142   istringstream istr("inside betty carter");
 143   ostringstream ostr;
 144   ostr << istr.rdbuf() << endl;
 145
 146   if (ostr.rdstate() & ios_base::eofbit)
 147     test = false;
 148
 149   VERIFY( test );
 150 }
 151
 152 int
 153 main()
 154 {
 155   test01();
 156   test02();
 157   test03();
 158
 159   return 0;
 160 }