libstdc++-v3/testsuite/21_strings/basic_string/cons/char/69092.cc

   1 // Copyright (C) 2016-2019 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the
   5 // terms of the GNU General Public License as published by the
   6 // Free Software Foundation; either version 3, or (at your option)
   7 // any later version.
   8
   9 // This library is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 // { dg-do run { target c++11 } }
  19
  20 // PR libstdc++/69092
  21
  22 #include <string>
  23 #include <iterator>
  24
  25 struct hate_T_iterator : std::iterator<std::forward_iterator_tag, char> {
  26     explicit hate_T_iterator(char* p) : p(p) {}
  27     char* p;
  28
  29     hate_T_iterator& operator++() { ++p; return *this; }
  30
  31     hate_T_iterator operator++(int)
  32     {
  33       hate_T_iterator r = *this;
  34       ++*this; return r;
  35     }
  36
  37     char& operator*() const
  38     {
  39       if (*p == 'T')
  40         throw 1;
  41       return *p;
  42     }
  43
  44     char* operator->() const { return p; }
  45
  46     bool operator== (hate_T_iterator other) const { return p == other.p;}
  47     bool operator!= (hate_T_iterator other) const { return p != other.p;}
  48 };
  49
  50 int main()
  51 {
  52   char test_str[4] = "ATA";
  53   try {
  54     std::string s(hate_T_iterator(test_str), hate_T_iterator(test_str+3));
  55   }
  56   catch(int) {
  57   }
  58 }