libstdc++-v3/testsuite/23_containers/unordered_set/56267.cc

   1 // { dg-do compile { target c++11 } }
   2
   3 // Copyright (C) 2013-2018 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 // libstdc++/56267
  21
  22 #include <unordered_set>
  23
  24 struct hash : std::hash<int>
  25 {
  26   hash& operator=(const hash&) = delete;
  27 };
  28
  29 int main()
  30 {
  31   std::unordered_set<int, hash> s{ 0, 1, 2 };
  32   auto i = s.begin(0);
  33   i = i;
  34 }