libstdc++-v3/testsuite/24_iterators/istream_iterator.cc

   1 // 2001-06-25  Benjamin Kosnik  <bkoz@redhat.com>
   2
   3 // Copyright (C) 2001, 2003 Free Software Foundation, Inc.
   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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // 24.5.1 Template class istream_iterator
  22
  23 #include <iterator>
  24 #include <sstream>
  25 #include <testsuite_hooks.h>
  26
  27 void test01()
  28 {
  29   using namespace std;
  30
  31   // Check for required base class.
  32   typedef istream_iterator<long> test_iterator;
  33   typedef iterator<input_iterator_tag, long, ptrdiff_t, const long*,
  34                    const long&> base_iterator;
  35   test_iterator  r_it;
  36   base_iterator* base __attribute__((unused)) = &r_it;
  37
  38   // Check for required typedefs
  39   typedef test_iterator::value_type value_type;
  40   typedef test_iterator::difference_type difference_type;
  41   typedef test_iterator::pointer pointer;
  42   typedef test_iterator::reference reference;
  43   typedef test_iterator::iterator_category iteratory_category;
  44
  45   typedef test_iterator::char_type char_type;
  46   typedef test_iterator::traits_type traits_type;
  47   typedef test_iterator::istream_type istream_type;
  48 }
  49
  50 // Instantiate
  51 template class std::istream_iterator<char>;
  52
  53 void test02()
  54 {
  55   using namespace std;
  56   bool test __attribute__((unused)) = true;
  57
  58   string st("R.Rorty");
  59
  60   string re_01, re_02, re_03;
  61   re_02 = ",H.Putnam";
  62   re_03 = "D.Dennett,xxx,H.Putnam";
  63
  64   stringbuf sb_01(st);
  65   istream is_01(&sb_01);
  66   istream_iterator<char> inb_01(is_01);
  67   istream_iterator<char> ine_01;
  68   re_01.assign(inb_01, ine_01);
  69   VERIFY( re_01 == "R.Rorty" );
  70
  71   stringbuf sb_02(st);
  72   istream is_02(&sb_02);
  73   istream_iterator<char> inb_02(is_02);
  74   istream_iterator<char> ine_02;
  75   re_02.insert(re_02.begin(), inb_02, ine_02);
  76   VERIFY( re_02 == "R.Rorty,H.Putnam" );
  77
  78   stringbuf sb_03(st);
  79   istream is_03(&sb_03);
  80   istream_iterator<char> inb_03(is_03);
  81   istream_iterator<char> ine_03;
  82   re_03.replace(re_03.begin() + 10, re_03.begin() + 13,
  83                 inb_03, ine_03);
  84   VERIFY( re_03 == "D.Dennett,R.Rorty,H.Putnam" );
  85 }
  86
  87 int main()
  88 {
  89   test01();
  90   test02();
  91   return 0;
  92 }