libstdc++-v3/testsuite/20_util/is_base_of/value.cc

   1 // { dg-options "-std=gnu++11" }
   2 // { dg-do compile }
   3
   4 // Copyright (C) 2013 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 #include <type_traits>
  22 #include <testsuite_tr1.h>
  23
  24 class HiddenCons
  25 {
  26   HiddenCons();
  27   HiddenCons(const HiddenCons&);
  28 };
  29
  30 class DerivedHiddenCons
  31 : private HiddenCons
  32 {
  33   DerivedHiddenCons();
  34   DerivedHiddenCons(const DerivedHiddenCons&);
  35 };
  36
  37 class MultiDerivedHiddenCons
  38 : private HiddenCons, private __gnu_test::ClassType
  39 {
  40   MultiDerivedHiddenCons();
  41   MultiDerivedHiddenCons(const MultiDerivedHiddenCons&);
  42 };
  43
  44 void test01()
  45 {
  46   using std::is_base_of;
  47   using namespace __gnu_test;
  48
  49   // Positive tests.
  50   static_assert(test_relationship<is_base_of, AbstractClass,
  51                 AbstractClass>(true), "");
  52   static_assert(test_relationship<is_base_of, ClassType,
  53                 DerivedType>(true), "");
  54   static_assert(test_relationship<is_base_of, ClassType,
  55                 const DerivedType>(true), "");
  56   static_assert(test_relationship<is_base_of, volatile ClassType,
  57                 volatile DerivedType>(true), "");
  58   static_assert(test_relationship<is_base_of, PolymorphicClass,
  59                 DerivedPolymorphic>(true), "");
  60   static_assert(test_relationship<is_base_of, HiddenCons,
  61                 DerivedHiddenCons>(true), "");
  62   static_assert(test_relationship<is_base_of, HiddenCons,
  63                 MultiDerivedHiddenCons>(true), "");
  64   static_assert(test_relationship<is_base_of, ClassType,
  65                 MultiDerivedHiddenCons>(true), "");
  66
  67   // Negative tests.
  68   static_assert(test_relationship<is_base_of, int, int>(false), "");
  69   static_assert(test_relationship<is_base_of, EnumType, EnumType>(false), "");
  70   static_assert(test_relationship<is_base_of, UnionType, UnionType>(false), "");
  71   static_assert(test_relationship<is_base_of, int, const int>(false), "");
  72   static_assert(test_relationship<is_base_of, volatile UnionType,
  73                 UnionType>(false), "");
  74   static_assert(test_relationship<is_base_of, int&, ClassType>(false), "");
  75   static_assert(test_relationship<is_base_of, AbstractClass,
  76                 ClassType>(false), "");
  77   static_assert(test_relationship<is_base_of, ClassType,
  78                 AbstractClass>(false), "");
  79   static_assert(test_relationship<is_base_of, DerivedType,
  80                 ClassType>(false), "");
  81   static_assert(test_relationship<is_base_of, DerivedPolymorphic,
  82                 PolymorphicClass>(false), "");
  83   static_assert(test_relationship<is_base_of, DerivedHiddenCons,
  84                 HiddenCons>(false), "");
  85   static_assert(test_relationship<is_base_of, MultiDerivedHiddenCons,
  86                 HiddenCons>(false), "");
  87   static_assert(test_relationship<is_base_of, MultiDerivedHiddenCons,
  88                 ClassType>(false), "");
  89 }