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52066eae | 1 | // { dg-do compile { target c++11 } } |
ae29d025 | 2 | |
8d9254fc | 3 | // Copyright (C) 2013-2020 Free Software Foundation, Inc. |
ae29d025 PC |
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 | #include <type_traits> | |
21 | #include <testsuite_tr1.h> | |
22 | ||
23 | class EmptyClassOne | |
24 | { typedef int type; }; | |
25 | ||
26 | class EmptyClassTwo | |
27 | { static int data; }; | |
28 | ||
29 | class EmptyClassThree | |
30 | { int f(); }; | |
31 | ||
32 | class NonEmptyClassOne | |
33 | { int data; }; | |
34 | ||
35 | class NonEmptyClassTwo | |
36 | { | |
37 | virtual int f(); | |
38 | virtual ~NonEmptyClassTwo(); | |
39 | }; | |
40 | ||
41 | void test01() | |
42 | { | |
43 | using std::is_empty; | |
44 | using namespace __gnu_test; | |
45 | ||
46 | // Positive tests. | |
47 | static_assert(test_category<is_empty, ClassType>(true), ""); | |
48 | static_assert(test_category<is_empty, EmptyClassOne>(true), ""); | |
49 | static_assert(test_category<is_empty, EmptyClassTwo>(true), ""); | |
50 | static_assert(test_category<is_empty, EmptyClassThree>(true), ""); | |
51 | ||
52 | // Negative tests. | |
53 | static_assert(test_category<is_empty, void>(false), ""); | |
54 | static_assert(test_category<is_empty, float>(false), ""); | |
55 | static_assert(test_category<is_empty, int[4]>(false), ""); | |
56 | static_assert(test_category<is_empty, int*>(false), ""); | |
57 | static_assert(test_category<is_empty, int&>(false), ""); | |
58 | static_assert(test_category<is_empty, int (ClassType::*)>(false), ""); | |
59 | static_assert(test_category<is_empty, EnumType>(false), ""); | |
60 | static_assert(test_category<is_empty, int (int)>(false), ""); | |
61 | ||
62 | static_assert(test_category<is_empty, AbstractClass>(false), ""); | |
63 | static_assert(test_category<is_empty, NonEmptyClassOne>(false), ""); | |
64 | static_assert(test_category<is_empty, NonEmptyClassTwo>(false), ""); | |
65 | } |