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67f43041 | 1 | // { dg-options "-std=gnu++14" } |
2 | // { dg-do run } | |
3 | ||
f1717362 | 4 | // Copyright (C) 2015-2016 Free Software Foundation, Inc. |
67f43041 | 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 moved_to 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 | #include <experimental/propagate_const> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | using std::experimental::propagate_const; | |
25 | using std::hash; | |
26 | ||
27 | int main() | |
28 | { | |
29 | int x{42}; | |
30 | propagate_const<int*> xx{&x}; | |
31 | VERIFY(bool(xx)); | |
32 | propagate_const<int*> xx2{}; | |
33 | VERIFY(!bool(xx2)); | |
34 | struct X {int x;}; | |
35 | X x3{42}; | |
36 | propagate_const<X*> xx3{&x3}; | |
37 | VERIFY(xx3->x == 42); | |
38 | VERIFY((*xx3).x == 42); | |
39 | VERIFY(xx3.get() == &x3); | |
40 | const propagate_const<X*> xx4{&x3}; | |
41 | VERIFY(xx4->x == 42); | |
42 | VERIFY((*xx4).x == 42); | |
43 | VERIFY(xx4.get() == &x3); | |
44 | static constexpr int x4{42}; | |
45 | constexpr propagate_const<const int*> xx5{&x4}; | |
46 | static_assert(bool(xx5), ""); | |
47 | constexpr propagate_const<const int*> xx6{}; | |
48 | static_assert(!bool(xx6), ""); | |
49 | struct X2 {int x;}; | |
50 | static constexpr X2 x5{42}; | |
51 | constexpr propagate_const<const X2*> xx7{&x5}; | |
52 | static_assert(xx7->x == 42, ""); | |
53 | static_assert((*xx7).x == 42, ""); | |
54 | static_assert(xx7.get() == &x5, ""); | |
55 | struct X3 | |
56 | { | |
57 | int f() {return 42;} | |
58 | int f() const {return 666;} | |
59 | }; | |
60 | X3 xx8; | |
61 | propagate_const<X3*> xx9{&xx8}; | |
62 | const propagate_const<X3*> xx10{&xx8}; | |
63 | VERIFY(xx9->f() == 42); | |
64 | VERIFY(xx10->f() == 666); | |
65 | } |