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0179f2c6 DG |
1 | // 2005-01-26 Douglas Gregor <dgregor@cs.indiana.edu> |
2 | // | |
7adcbafe | 3 | // Copyright (C) 2005-2022 Free Software Foundation, Inc. |
0179f2c6 DG |
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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
0179f2c6 DG |
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 | |
748086b7 JJ |
17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
0179f2c6 DG |
19 | |
20 | // 3.5 function template mem_fn | |
21 | #include <tr1/functional> | |
22 | #include <testsuite_hooks.h> | |
23 | #include <testsuite_tr1.h> | |
24 | ||
25 | struct X { int bar; }; | |
26 | ||
27 | struct Y : X { }; | |
28 | ||
29 | template<typename T> | |
30 | struct dumb_ptr | |
31 | { | |
32 | dumb_ptr(T* p) : p(p) {} | |
33 | ||
34 | T& operator*() const { return *p; } | |
35 | ||
36 | private: | |
37 | T* p; | |
38 | }; | |
39 | ||
40 | // Test mem_fn with a data member | |
e7c59a0e | 41 | void test01(int r = 0) |
0179f2c6 DG |
42 | { |
43 | using std::tr1::mem_fn; | |
44 | ||
45 | X x; | |
46 | Y y; | |
47 | const X& xc = x; | |
48 | const Y& yc = y; | |
49 | X* xp = &x; | |
50 | Y* yp =&y; | |
51 | const X* xpc = xp; | |
52 | const Y* ypc = yp; | |
53 | dumb_ptr<X> xd(xp); | |
54 | dumb_ptr<Y> yd(yp); | |
55 | const dumb_ptr<X>& xdc = xd; | |
56 | const dumb_ptr<Y>& ydc = yd; | |
57 | ||
58 | int& bx = mem_fn(&X::bar)(x); | |
59 | const int& bxc = mem_fn(&X::bar)(xc); | |
60 | int& bxp = mem_fn(&X::bar)(xp); | |
61 | const int& bxpc = mem_fn(&X::bar)(xpc); | |
62 | const int& bxd = mem_fn(&X::bar)(xd); | |
63 | const int& bxdc = mem_fn(&X::bar)(xdc); | |
64 | ||
65 | int& by = mem_fn(&X::bar)(y); | |
66 | const int& byc = mem_fn(&X::bar)(yc); | |
67 | int& byp = mem_fn(&X::bar)(yp); | |
68 | const int& bypc = mem_fn(&X::bar)(ypc); | |
69 | const int& byd = mem_fn(&X::bar)(yd); | |
70 | const int& bydc = mem_fn(&X::bar)(ydc); | |
f92ab29f | 71 | |
e7c59a0e PC |
72 | // Avoid unused variable warnings. |
73 | r = bx + bxc + bxp + bxpc + bxd + bxdc + by + byc + byp + bypc + byd + bydc; | |
0179f2c6 DG |
74 | } |
75 | ||
76 | int main() | |
77 | { | |
78 | test01(); | |
79 | return 0; | |
80 | } |