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b1983c22 | 1 | // { dg-options "-std=gnu++11" } |
2 | // { dg-do compile } | |
3 | ||
f1717362 | 4 | // Copyright (C) 2012-2016 Free Software Foundation, Inc. |
b1983c22 | 5 | // |
6 | // This file is part of the GNU ISO C++ Library. This library is free | |
7 | // software; you can redistribute it and/or modify it under the | |
8 | // terms of the GNU General Public License as published by the | |
9 | // Free Software Foundation; either version 3, or (at your option) | |
10 | // any later version. | |
11 | ||
12 | // This library is distributed in the hope that it will be useful, | |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
16 | ||
17 | // You should have received a copy of the GNU General Public License along | |
18 | // with this library; see the file COPYING3. If not see | |
19 | // <http://www.gnu.org/licenses/>. | |
20 | ||
21 | // PR libstdc++/55463 Passing rvalue objects to std::mem_fn | |
22 | ||
23 | #include <functional> | |
24 | ||
25 | struct X | |
26 | { | |
27 | int& func(); | |
28 | char& func_c() const; | |
29 | short& func_v() volatile; | |
30 | double& func_cv() const volatile; | |
31 | ||
32 | int data; | |
33 | }; | |
34 | ||
ef723edc | 35 | struct Y : X { }; |
36 | ||
b1983c22 | 37 | using CX = const X; |
ef723edc | 38 | using CY = const Y; |
39 | ||
40 | using X_ptr = X*; | |
b1983c22 | 41 | |
42 | struct smart_ptr | |
43 | { | |
44 | X& operator*() const; | |
45 | }; | |
46 | ||
47 | std::reference_wrapper<X> ref(); | |
48 | std::reference_wrapper<const X> cref(); | |
ef723edc | 49 | std::reference_wrapper<Y> yref(); |
b1983c22 | 50 | |
51 | void test01() | |
52 | { | |
fb0ecd46 | 53 | int& i1 __attribute__((unused)) = std::mem_fn( &X::func )( X() ); |
54 | int& i2 __attribute__((unused)) = std::mem_fn( &X::func )( Y() ); | |
55 | int& i3 __attribute__((unused)) = std::mem_fn( &X::func )( ref() ); | |
56 | int& i4 __attribute__((unused)) = std::mem_fn( &X::func )( yref() ); | |
57 | int& i5 __attribute__((unused)) = std::mem_fn( &X::func )( X_ptr() ); | |
58 | int& i6 __attribute__((unused)) = std::mem_fn( &X::func )( smart_ptr() ); | |
59 | ||
60 | char& c1 __attribute__((unused)) = std::mem_fn( &X::func_c )( X() ); | |
61 | char& c2 __attribute__((unused)) = std::mem_fn( &X::func_c )( CX() ); | |
62 | char& c3 __attribute__((unused)) = std::mem_fn( &X::func_c )( Y() ); | |
63 | char& c4 __attribute__((unused)) = std::mem_fn( &X::func_c )( ref() ); | |
64 | char& c5 __attribute__((unused)) = std::mem_fn( &X::func_c )( cref() ); | |
65 | char& c6 __attribute__((unused)) = std::mem_fn( &X::func_c )( yref() ); | |
66 | char& c7 __attribute__((unused)) = std::mem_fn( &X::func_c )( X_ptr() ); | |
67 | char& c8 __attribute__((unused)) = std::mem_fn( &X::func_c )( smart_ptr() ); | |
68 | ||
69 | short& s1 __attribute__((unused)) = std::mem_fn( &X::func_v )( X() ); | |
70 | short& s2 __attribute__((unused)) = std::mem_fn( &X::func_v )( Y() ); | |
71 | short& s3 __attribute__((unused)) = std::mem_fn( &X::func_v )( ref() ); | |
72 | short& s4 __attribute__((unused)) = std::mem_fn( &X::func_v )( yref() ); | |
73 | short& s5 __attribute__((unused)) = std::mem_fn( &X::func_v )( X_ptr() ); | |
74 | short& s6 __attribute__((unused)) = std::mem_fn( &X::func_v )( smart_ptr() ); | |
75 | ||
76 | double& d1 __attribute__((unused)) = std::mem_fn( &X::func_cv )( X() ); | |
77 | double& d2 __attribute__((unused)) = std::mem_fn( &X::func_cv )( CX() ); | |
78 | double& d3 __attribute__((unused)) = std::mem_fn( &X::func_cv )( Y() ); | |
79 | double& d4 __attribute__((unused)) = std::mem_fn( &X::func_cv )( ref() ); | |
80 | double& d5 __attribute__((unused)) = std::mem_fn( &X::func_cv )( cref() ); | |
81 | double& d6 __attribute__((unused)) = std::mem_fn( &X::func_cv )( yref() ); | |
82 | double& d7 __attribute__((unused)) = std::mem_fn( &X::func_cv )( X_ptr() ); | |
83 | double& d8 __attribute__((unused)) | |
84 | = std::mem_fn( &X::func_cv )( smart_ptr() ); | |
b1983c22 | 85 | |
86 | // [expr.mptr.oper] | |
87 | // The result of a .* expression whose second operand is a pointer to a | |
88 | // data member is of the same value category (3.10) as its first operand. | |
fb0ecd46 | 89 | int&& rval __attribute__((unused)) = std::mem_fn( &X::data )( X() ); |
90 | const int&& crval __attribute__((unused)) = std::mem_fn( &X::data )( CX() ); | |
91 | int&& yrval __attribute__((unused)) = std::mem_fn( &X::data )( Y() ); | |
92 | const int&& ycrval __attribute__((unused)) = std::mem_fn( &X::data )( CY() ); | |
b1983c22 | 93 | |
fb0ecd46 | 94 | int& val __attribute__((unused)) = std::mem_fn( &X::data )( ref() ); |
95 | const int& cval __attribute__((unused)) = std::mem_fn( &X::data )( cref() ); | |
96 | int& yval __attribute__((unused)) = std::mem_fn( &X::data )( yref() ); | |
ef723edc | 97 | |
fb0ecd46 | 98 | int& pval __attribute__((unused)) = std::mem_fn( &X::data )( X_ptr() ); |
99 | int& sval __attribute__((unused)) = std::mem_fn( &X::data )( smart_ptr() ); | |
b1983c22 | 100 | } |