1 // 2005-01-28 Paolo Carlini <pcarlini@suse.de>
2 //
3 // Copyright (C) 2005-2019 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 // 4.5.3 Type properties
21
22 #include <tr1/type_traits>
23 #include <testsuite_hooks.h>
24 #include <testsuite_tr1.h>
25
26 class EmptyClassOne
27 { typedef int type; };
28
29 class EmptyClassTwo
30 { static int data; };
31
32 class EmptyClassThree
33 { int f(); };
34
35 class NonEmptyClassOne
36 { int data; };
37
38 class NonEmptyClassTwo
39 {
40 virtual int f();
41 virtual ~NonEmptyClassTwo();
42 };
43
test01()44 void test01()
45 {
46 using std::tr1::is_empty;
47 using namespace __gnu_test;
48
49 // Positive tests.
50 VERIFY( (test_category<is_empty, ClassType>(true)) );
51 VERIFY( (test_category<is_empty, EmptyClassOne>(true)) );
52 VERIFY( (test_category<is_empty, EmptyClassTwo>(true)) );
53 VERIFY( (test_category<is_empty, EmptyClassThree>(true)) );
54
55 // Negative tests.
56 VERIFY( (test_category<is_empty, void>(false)) );
57 VERIFY( (test_category<is_empty, float>(false)) );
58 VERIFY( (test_category<is_empty, int[4]>(false)) );
59 VERIFY( (test_category<is_empty, int*>(false)) );
60 VERIFY( (test_category<is_empty, int&>(false)) );
61 VERIFY( (test_category<is_empty, int (ClassType::*)>(false)) );
62 VERIFY( (test_category<is_empty, EnumType>(false)) );
63 VERIFY( (test_category<is_empty, int (int)>(false)) );
64
65 VERIFY( (test_category<is_empty, AbstractClass>(false)) );
66 VERIFY( (test_category<is_empty, NonEmptyClassOne>(false)) );
67 VERIFY( (test_category<is_empty, NonEmptyClassTwo>(false)) );
68 }
69
main()70 int main()
71 {
72 test01();
73 return 0;
74 }
75