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

   1 // { dg-do compile { target c++11 } }
   2 // { dg-require-normal-mode "" }
   3
   4 // Copyright (C) 2011-2020 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 // { dg-error "qualify your functors .* with noexcept" "" { target *-*-* } 0 }
  22
  23 #include <unordered_set>
  24
  25 namespace
  26 {
  27   struct hash_without_noexcept
  28   {
  29     std::size_t operator() (int) const
  30     { return 0; }
  31   };
  32 }
  33
  34 void
  35 test01()
  36 {
  37   using traits = std::__detail::_Hashtable_traits<false, true, true>;
  38   using hashtable = std::__uset_hashtable<int, hash_without_noexcept,
  39                                           std::equal_to<int>,
  40                                           std::allocator<int>, traits>;
  41
  42   hashtable ht;
  43 }