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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/20_util/common_type/requirements/typedefs-2.cc
1 // { dg-options "-std=gnu++11" }
3 // 2009-11-12 Paolo Carlini <paolo.carlini@oracle.com>
5 // Copyright (C) 2009-2016 Free Software Foundation, Inc.
7 // This file is part of the GNU ISO C++ Library. This library is free
8 // software; you can redistribute it and/or modify it under the
9 // terms of the GNU General Public License as published by the
10 // Free Software Foundation; either version 3, or (at your option)
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
18 // You should have received a copy of the GNU General Public License along
19 // with this library; see the file COPYING3. If not see
20 // <http://www.gnu.org/licenses/>.
22 #include <type_traits>
27 using std::common_type
;
30 static_assert( is_same
<common_type
<void>::type
, void>(),
31 "common_type<void>" );
32 static_assert( is_same
<common_type
<const void>::type
, void>(),
33 "common_type<const void>" );
34 static_assert( is_same
<common_type
<volatile void>::type
, void>(),
35 "common_type<volatile void>" );
36 static_assert( is_same
<common_type
<const volatile void>::type
, void>(),
37 "common_type<const volatile void>" );
39 static_assert( is_same
<common_type
<void, void>::type
, void>(),
40 "common_type<void, void>" );
41 static_assert( is_same
<common_type
<void, const void>::type
, void>(),
42 "common_type<void, const void>" );
43 static_assert( is_same
<common_type
<void, volatile void>::type
, void>(),
44 "common_type<void, volatile void>" );
45 static_assert( is_same
<common_type
<void, const volatile void>::type
, void>(),
46 "common_type<void, const volatile void>" );
47 static_assert( is_same
<common_type
<const void, void>::type
, void>(),
48 "common_type<const void, void>" );
49 static_assert( is_same
<common_type
<const void, const void>::type
, void>(),
50 "common_type<const void, const void>" );
51 static_assert( is_same
<common_type
<const void, volatile void>::type
, void>(),
52 "common_type<const void, volatile void>" );
53 static_assert( is_same
<common_type
<const void, const volatile void>::type
,
54 void>(), "common_type<const void, const volatile void>" );
55 static_assert( is_same
<common_type
<volatile void, void>::type
, void>(),
56 "common_type<volatile void, void>" );
57 static_assert( is_same
<common_type
<volatile void, volatile void>::type
,
58 void>(), "common_type<volatile void, volatile void>" );
59 static_assert( is_same
<common_type
<volatile void, const void>::type
,
60 void>(), "common_type<volatile void, const void>" );
61 static_assert( is_same
<common_type
<volatile void, const volatile void>::type
,
62 void>(), "common_type<volatile void, const volatile void>" );
63 static_assert( is_same
<common_type
<const volatile void, void>::type
, void>(),
64 "common_type<const volatile void, const volatile void>" );
65 static_assert( is_same
<common_type
<const volatile void, const void>::type
,
66 void>(), "common_type<const volatile void, const void>" );
67 static_assert( is_same
<common_type
<const volatile void, volatile void>::type
,
68 void>(), "common_type<const volatile void, volatile void>" );
69 static_assert( is_same
<common_type
<const volatile void, const volatile void>::type
,
71 "common_type<const volatile void, const volatile void>" );