libstdc++-v3/testsuite/20_util/hash/60970.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2015-2018 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
  17 // along with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20
  21 #include <functional>
  22 #include <testsuite_hooks.h>
  23
  24 using namespace std;
  25
  26 enum E1 : int {FIRST=1, SECOND=2};
  27 enum class E2 : int {THIRD=42, FOURTH=666};
  28
  29 int main()
  30 {
  31   VERIFY(hash<int>{}(1) == hash<E1>{}(FIRST));
  32   VERIFY(hash<int>{}(2) == hash<E1>{}(SECOND));
  33   VERIFY(hash<int>{}(42) == hash<E2>{}(E2::THIRD));
  34   VERIFY(hash<int>{}(666) == hash<E2>{}(E2::FOURTH));
  35 }