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

   1 // { dg-do run { target c++11 } }
   2
   3 // 2010-09-22  Paolo Carlini  <paolo.carlini@oracle.com>
   4 //
   5 // Copyright (C) 2010-2020 Free Software Foundation, Inc.
   6 //
   7 // This file is part of the GNU ISO C++ Library.  This library is free
   8 // software; you can redistribute it and/or modify it under the
   9 // terms of the GNU General Public License as published by the
  10 // Free Software Foundation; either version 3, or (at your option)
  11 // any later version.
  12
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License along
  19 // with this library; see the file COPYING3.  If not see
  20 // <http://www.gnu.org/licenses/>.
  21
  22 #include <typeindex>
  23 #include <testsuite_hooks.h>
  24
  25 void test01()
  26 {
  27   using namespace std;
  28
  29   class Abraca { };
  30   Abraca a1, a2_;
  31   const Abraca a2 = a2_;
  32
  33   const type_index ti1(typeid(int));
  34   VERIFY( hash<type_index>()(ti1) == ti1.hash_code() );
  35
  36   const type_index ti2(typeid(double));
  37   VERIFY( hash<type_index>()(ti2) == ti2.hash_code() );
  38
  39   const type_index ti3(typeid(Abraca));
  40   VERIFY( hash<type_index>()(ti3) == ti3.hash_code() );
  41
  42   const type_index ti4(typeid(const Abraca));
  43   VERIFY( hash<type_index>()(ti4) == ti4.hash_code() );
  44
  45   const type_index ti5(typeid(const Abraca&));
  46   VERIFY( hash<type_index>()(ti5) == ti5.hash_code() );
  47
  48   const type_index ti6(typeid(a1));
  49   VERIFY( hash<type_index>()(ti6) == ti6.hash_code() );
  50
  51   const type_index ti7(typeid(a2));
  52   VERIFY( hash<type_index>()(ti7) == ti7.hash_code() );
  53 }
  54
  55 int main()
  56 {
  57   test01();
  58   return 0;
  59 }