libstdc++-v3/testsuite/24_iterators/istreambuf_iterator/2627.cc

   1 // 1999-06-28 bkoz
   2
   3 // Copyright (C) 1999, 2001, 2003, 2009 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 // libstdc++/2627
  27 void test03()
  28 {
  29   bool test __attribute__((unused)) = true;
  30   const std::string s("free the vieques");
  31
  32   // 1
  33   std::string res_postfix;
  34   std::istringstream iss01(s);
  35   std::istreambuf_iterator<char> isbufit01(iss01);
  36   for (std::size_t j = 0; j < s.size(); ++j, isbufit01++)
  37     res_postfix += *isbufit01;
  38
  39   // 2
  40   std::string res_prefix;
  41   std::istringstream iss02(s);
  42   std::istreambuf_iterator<char> isbufit02(iss02);
  43   for (std::size_t j = 0; j < s.size(); ++j, ++isbufit02)
  44     res_prefix += *isbufit02;
  45
  46   // 3 mixed
  47   std::string res_mixed;
  48   std::istringstream iss03(s);
  49   std::istreambuf_iterator<char> isbufit03(iss03);
  50   for (std::size_t j = 0; j < (s.size() / 2); ++j)
  51     {
  52       res_mixed += *isbufit03;
  53       ++isbufit03;
  54       res_mixed += *isbufit03;
  55       isbufit03++;
  56     }
  57
  58   VERIFY ( res_postfix == res_prefix );
  59   VERIFY ( res_mixed == res_prefix );
  60 }
  61
  62 int main()
  63 {
  64   test03();
  65   return 0;
  66 }