1// { dg-options "-std=gnu++11" }
2// { dg-do compile }
3
4// Copyright (C) 2013-2015 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
24class EmptyClassOne
25{ typedef int type; };
26
27class EmptyClassTwo
28{ static int data; };
29
30class EmptyClassThree
31{ int f(); };
32
33class NonEmptyClassOne
34{ int data; };
35
36class NonEmptyClassTwo
37{
38  virtual int f();
39  virtual ~NonEmptyClassTwo();
40};
41
42void test01()
43{
44  using std::is_empty;
45  using namespace __gnu_test;
46
47  // Positive tests.
48  static_assert(test_category<is_empty, ClassType>(true), "");
49  static_assert(test_category<is_empty, EmptyClassOne>(true), "");
50  static_assert(test_category<is_empty, EmptyClassTwo>(true), "");
51  static_assert(test_category<is_empty, EmptyClassThree>(true), "");
52
53  // Negative tests.
54  static_assert(test_category<is_empty, void>(false), "");
55  static_assert(test_category<is_empty, float>(false), "");
56  static_assert(test_category<is_empty, int[4]>(false), "");
57  static_assert(test_category<is_empty, int*>(false), "");
58  static_assert(test_category<is_empty, int&>(false), "");
59  static_assert(test_category<is_empty, int (ClassType::*)>(false), "");
60  static_assert(test_category<is_empty, EnumType>(false), "");
61  static_assert(test_category<is_empty, int (int)>(false), "");
62
63  static_assert(test_category<is_empty, AbstractClass>(false), "");
64  static_assert(test_category<is_empty, NonEmptyClassOne>(false), "");
65  static_assert(test_category<is_empty, NonEmptyClassTwo>(false), "");
66}
67