libstdc++-v3/testsuite/24_iterators/istreambuf_iterator/2.cc

   1 // 1999-06-28 bkoz
   2
   3 // Copyright (C) 1999-2022 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 3, 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 COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 24.5.3 template class istreambuf_iterator
  21
  22 #include <sstream>
  23 #include <iterator>
  24 #include <testsuite_hooks.h>
  25
  26 void test02(void)
  27 {
  28   typedef std::istreambuf_iterator<char> cistreambuf_iter;
  29   const char slit01[] = "playa hermosa, liberia, guanacaste";
  30   std::string str01(slit01);
  31   std::istringstream istrs00(str01);
  32   std::istringstream istrs01(str01);
  33
  34   // ctor sanity checks
  35   cistreambuf_iter istrb_it01(istrs00);
  36   cistreambuf_iter istrb_eos;
  37   VERIFY( istrb_it01 != istrb_eos );
  38
  39   std::string tmp(istrb_it01, istrb_eos);
  40   VERIFY( tmp == str01 );
  41
  42   VERIFY( istrb_it01 == istrb_eos );
  43
  44   cistreambuf_iter istrb_it03(0);
  45   cistreambuf_iter istrb_it04;
  46   VERIFY( istrb_it03 == istrb_it04 );
  47
  48   cistreambuf_iter istrb_it05(istrs01);
  49   cistreambuf_iter istrb_it06(istrs01.rdbuf());
  50   VERIFY( istrb_it05 == istrb_it06 );
  51
  52   // bool equal(istreambuf_iter& b)
  53   cistreambuf_iter istrb_it07(0);
  54   cistreambuf_iter istrb_it08;
  55   VERIFY( istrb_it07.equal(istrb_it08) );
  56   cistreambuf_iter istrb_it09(0);
  57   cistreambuf_iter istrb_it10;
  58   VERIFY( istrb_it10.equal(istrb_it09) );
  59
  60   cistreambuf_iter istrb_it11(istrs01);
  61   cistreambuf_iter istrb_it12(istrs01.rdbuf());
  62   VERIFY( istrb_it11.equal(istrb_it12) );
  63   cistreambuf_iter istrb_it13(istrs01);
  64   cistreambuf_iter istrb_it14(istrs01.rdbuf());
  65   VERIFY( istrb_it14.equal(istrb_it13) );
  66
  67   cistreambuf_iter istrb_it15(istrs01);
  68   cistreambuf_iter istrb_it16;
  69   VERIFY( !(istrb_it15.equal(istrb_it16)) );
  70   cistreambuf_iter istrb_it17(istrs01);
  71   cistreambuf_iter istrb_it18;
  72   VERIFY( !(istrb_it18.equal(istrb_it17)) );
  73
  74   // bool operator==(const istreambuf_iterator&a, const istreambuf_iterator& b)
  75   // bool operator!=(const istreambuf_iterator&a, const istreambuf_iterator& b)
  76   cistreambuf_iter istrb_it19(0);
  77   cistreambuf_iter istrb_it20;
  78   VERIFY( istrb_it19 == istrb_it20 );
  79
  80   cistreambuf_iter istrb_it21(istrs01);
  81   cistreambuf_iter istrb_it22(istrs01.rdbuf());
  82   VERIFY( istrb_it22 == istrb_it21 );
  83
  84   cistreambuf_iter istrb_it23(istrs01);
  85   cistreambuf_iter istrb_it24;
  86   VERIFY( istrb_it23 != istrb_it24 );
  87
  88   cistreambuf_iter istrb_it25(0);
  89   cistreambuf_iter istrb_it26(istrs01.rdbuf());
  90   VERIFY( istrb_it25 != istrb_it26 );
  91
  92   // charT operator*() const
  93   // istreambuf_iterator& operator++();
  94   // istreambuf_iterator& operator++(int);
  95   cistreambuf_iter istrb_it27(istrs01.rdbuf());
  96   char c;
  97   for (std::size_t i = 0; i < sizeof(slit01) - 2; ++i)
  98     {
  99       c = *istrb_it27++;
 100       VERIFY( c == slit01[i] );
 101     }
 102
 103   std::istringstream istrs02(str01);
 104   cistreambuf_iter istrb_it28(istrs02);
 105   for (std::size_t i = 0; i < sizeof(slit01) - 2;)
 106     {
 107       c = *++istrb_it28;
 108       VERIFY( c == slit01[++i] );
 109     }
 110 }
 111
 112 int main()
 113 {
 114   test02();
 115   return 0;
 116 }