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52066eae | 1 | // { dg-do compile { target c++11 } } |
5127244e | 2 | |
a5544970 | 3 | // Copyright (C) 2012-2019 Free Software Foundation, Inc. |
5127244e JW |
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 | // PR libstdc++/55463 Passing rvalue objects to std::mem_fn | |
21 | ||
22 | #include <functional> | |
23 | ||
24 | struct X | |
25 | { | |
26 | int& func(); | |
27 | char& func_c() const; | |
28 | short& func_v() volatile; | |
29 | double& func_cv() const volatile; | |
30 | ||
31 | int data; | |
32 | }; | |
33 | ||
b1c2b51b JW |
34 | struct Y : X { }; |
35 | ||
5127244e | 36 | using CX = const X; |
b1c2b51b JW |
37 | using CY = const Y; |
38 | ||
39 | using X_ptr = X*; | |
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40 | |
41 | struct smart_ptr | |
42 | { | |
43 | X& operator*() const; | |
44 | }; | |
45 | ||
46 | std::reference_wrapper<X> ref(); | |
47 | std::reference_wrapper<const X> cref(); | |
b1c2b51b | 48 | std::reference_wrapper<Y> yref(); |
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49 | |
50 | void test01() | |
51 | { | |
03a42414 PC |
52 | int& i1 __attribute__((unused)) = std::mem_fn( &X::func )( X() ); |
53 | int& i2 __attribute__((unused)) = std::mem_fn( &X::func )( Y() ); | |
54 | int& i3 __attribute__((unused)) = std::mem_fn( &X::func )( ref() ); | |
55 | int& i4 __attribute__((unused)) = std::mem_fn( &X::func )( yref() ); | |
56 | int& i5 __attribute__((unused)) = std::mem_fn( &X::func )( X_ptr() ); | |
57 | int& i6 __attribute__((unused)) = std::mem_fn( &X::func )( smart_ptr() ); | |
58 | ||
59 | char& c1 __attribute__((unused)) = std::mem_fn( &X::func_c )( X() ); | |
60 | char& c2 __attribute__((unused)) = std::mem_fn( &X::func_c )( CX() ); | |
61 | char& c3 __attribute__((unused)) = std::mem_fn( &X::func_c )( Y() ); | |
62 | char& c4 __attribute__((unused)) = std::mem_fn( &X::func_c )( ref() ); | |
63 | char& c5 __attribute__((unused)) = std::mem_fn( &X::func_c )( cref() ); | |
64 | char& c6 __attribute__((unused)) = std::mem_fn( &X::func_c )( yref() ); | |
65 | char& c7 __attribute__((unused)) = std::mem_fn( &X::func_c )( X_ptr() ); | |
66 | char& c8 __attribute__((unused)) = std::mem_fn( &X::func_c )( smart_ptr() ); | |
67 | ||
68 | short& s1 __attribute__((unused)) = std::mem_fn( &X::func_v )( X() ); | |
69 | short& s2 __attribute__((unused)) = std::mem_fn( &X::func_v )( Y() ); | |
70 | short& s3 __attribute__((unused)) = std::mem_fn( &X::func_v )( ref() ); | |
71 | short& s4 __attribute__((unused)) = std::mem_fn( &X::func_v )( yref() ); | |
72 | short& s5 __attribute__((unused)) = std::mem_fn( &X::func_v )( X_ptr() ); | |
73 | short& s6 __attribute__((unused)) = std::mem_fn( &X::func_v )( smart_ptr() ); | |
74 | ||
75 | double& d1 __attribute__((unused)) = std::mem_fn( &X::func_cv )( X() ); | |
76 | double& d2 __attribute__((unused)) = std::mem_fn( &X::func_cv )( CX() ); | |
77 | double& d3 __attribute__((unused)) = std::mem_fn( &X::func_cv )( Y() ); | |
78 | double& d4 __attribute__((unused)) = std::mem_fn( &X::func_cv )( ref() ); | |
79 | double& d5 __attribute__((unused)) = std::mem_fn( &X::func_cv )( cref() ); | |
80 | double& d6 __attribute__((unused)) = std::mem_fn( &X::func_cv )( yref() ); | |
81 | double& d7 __attribute__((unused)) = std::mem_fn( &X::func_cv )( X_ptr() ); | |
82 | double& d8 __attribute__((unused)) | |
83 | = std::mem_fn( &X::func_cv )( smart_ptr() ); | |
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84 | |
85 | // [expr.mptr.oper] | |
86 | // The result of a .* expression whose second operand is a pointer to a | |
87 | // data member is of the same value category (3.10) as its first operand. | |
03a42414 PC |
88 | int&& rval __attribute__((unused)) = std::mem_fn( &X::data )( X() ); |
89 | const int&& crval __attribute__((unused)) = std::mem_fn( &X::data )( CX() ); | |
90 | int&& yrval __attribute__((unused)) = std::mem_fn( &X::data )( Y() ); | |
91 | const int&& ycrval __attribute__((unused)) = std::mem_fn( &X::data )( CY() ); | |
5127244e | 92 | |
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93 | int& val __attribute__((unused)) = std::mem_fn( &X::data )( ref() ); |
94 | const int& cval __attribute__((unused)) = std::mem_fn( &X::data )( cref() ); | |
95 | int& yval __attribute__((unused)) = std::mem_fn( &X::data )( yref() ); | |
b1c2b51b | 96 | |
03a42414 PC |
97 | int& pval __attribute__((unused)) = std::mem_fn( &X::data )( X_ptr() ); |
98 | int& sval __attribute__((unused)) = std::mem_fn( &X::data )( smart_ptr() ); | |
5127244e | 99 | } |