libstdc++-v3/testsuite/tr1/4_metaprogramming/is_base_of/value.cc

   1 // 2005-03-04  Paolo Carlini  <pcarlini@suse.de>
   2 //
   3 // Copyright (C) 2005-2020 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 // 4.6 Relationships between types
  21
  22 #include <tr1/type_traits>
  23 #include <testsuite_hooks.h>
  24 #include <testsuite_tr1.h>
  25
  26 class HiddenCons
  27 {
  28   HiddenCons();
  29   HiddenCons(const HiddenCons&);
  30 };
  31
  32 class DerivedHiddenCons
  33 : private HiddenCons
  34 {
  35   DerivedHiddenCons();
  36   DerivedHiddenCons(const DerivedHiddenCons&);
  37 };
  38
  39 class MultiDerivedHiddenCons
  40 : private HiddenCons, private __gnu_test::ClassType
  41 {
  42   MultiDerivedHiddenCons();
  43   MultiDerivedHiddenCons(const MultiDerivedHiddenCons&);
  44 };
  45
  46 void test01()
  47 {
  48   using std::tr1::is_base_of;
  49   using namespace __gnu_test;
  50
  51   // Positive tests.
  52   VERIFY( (test_relationship<is_base_of, int, int>(true)) );
  53   VERIFY( (test_relationship<is_base_of, EnumType, EnumType>(true)) );
  54   VERIFY( (test_relationship<is_base_of, UnionType, UnionType>(true)) );
  55   VERIFY( (test_relationship<is_base_of, AbstractClass,
  56            AbstractClass>(true)) );
  57   VERIFY( (test_relationship<is_base_of, ClassType, DerivedType>(true)) );
  58   VERIFY( (test_relationship<is_base_of, ClassType, const DerivedType>(true)) );
  59   VERIFY( (test_relationship<is_base_of, volatile ClassType,
  60            volatile DerivedType>(true)) );
  61   VERIFY( (test_relationship<is_base_of, PolymorphicClass,
  62            DerivedPolymorphic>(true)) );
  63   VERIFY( (test_relationship<is_base_of, HiddenCons,
  64            DerivedHiddenCons>(true)) );
  65   VERIFY( (test_relationship<is_base_of, HiddenCons,
  66            MultiDerivedHiddenCons>(true)) );
  67   VERIFY( (test_relationship<is_base_of, ClassType,
  68            MultiDerivedHiddenCons>(true)) );
  69
  70   // Negative tests.
  71   VERIFY( (test_relationship<is_base_of, int, const int>(false)) );
  72   VERIFY( (test_relationship<is_base_of, volatile UnionType,
  73            UnionType>(false)) );
  74   VERIFY( (test_relationship<is_base_of, int&, ClassType>(false)) );
  75   VERIFY( (test_relationship<is_base_of, AbstractClass, ClassType>(false)) );
  76   VERIFY( (test_relationship<is_base_of, ClassType, AbstractClass>(false)) );
  77   VERIFY( (test_relationship<is_base_of, DerivedType, ClassType>(false)) );
  78   VERIFY( (test_relationship<is_base_of, DerivedPolymorphic,
  79            PolymorphicClass>(false)) );
  80   VERIFY( (test_relationship<is_base_of, DerivedHiddenCons,
  81            HiddenCons>(false)) );
  82   VERIFY( (test_relationship<is_base_of, MultiDerivedHiddenCons,
  83            HiddenCons>(false)) );
  84   VERIFY( (test_relationship<is_base_of, MultiDerivedHiddenCons,
  85            ClassType>(false)) );
  86 }
  87
  88 int main()
  89 {
  90   test01();
  91   return 0;
  92 }