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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/20_util/result_of/1.cc
1 // { dg-do compile { target c++11 } }
3 // Copyright (C) 2012-2023 Free Software Foundation, Inc.
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)
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.
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/>.
21 #include <type_traits>
26 void f2() volatile { }
30 typedef void (X::*pmf1
)();
31 typedef void (X::*pmf2
)() volatile;
33 typedef std::result_of
<pm
const&(X
&)>::type result
;
34 static_assert(std::is_same
<result
, int&>::value
,
35 "invoking cv-qualified pointer-to-member-object");
37 typedef std::result_of
<pmf1
const&(X
&)>::type result1
;
38 static_assert(std::is_void
<result1
>::value
,
39 "invoking cv-qualified pointer-to-member-function");
41 typedef std::result_of
<pmf2
const&(X
&)>::type result2
;
42 static_assert(std::is_void
<result2
>::value
,
43 "invoking cv-qualified pointer-to-member-function");
45 typedef std::result_of
<pm(volatile X
&)>::type result3
;
46 static_assert(std::is_same
<result3
, volatile int&>::value
,
47 "invoking pointer-to-member-object on volatile object");
49 typedef std::result_of
<pmf2(volatile X
&)>::type result4
;
50 static_assert(std::is_void
<result4
>::value
,
51 "invoking pointer-to-member-function on volatile object");