]>
Commit | Line | Data |
---|---|---|
f1717362 | 1 | // Copyright (C) 2007-2016 Free Software Foundation, Inc. |
c66ef042 | 2 | // |
3 | // This file is part of the GNU ISO C++ Library. This library is free | |
4 | // software; you can redistribute it and/or modify it under the | |
5 | // terms of the GNU General Public License as published by the | |
6bc9506f | 6 | // Free Software Foundation; either version 3, or (at your option) |
c66ef042 | 7 | // any later version. |
8 | ||
9 | // This library is distributed in the hope that it will be useful, | |
10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | // GNU General Public License for more details. | |
13 | ||
14 | // You should have received a copy of the GNU General Public License along | |
6bc9506f | 15 | // with this library; see the file COPYING3. If not see |
16 | // <http://www.gnu.org/licenses/>. | |
c66ef042 | 17 | |
18 | #include <string> | |
19 | #include <locale> | |
c66ef042 | 20 | #include <testsuite_hooks.h> |
21 | ||
22 | // Based on Langer Kreft "Standard C++ IOStreams and Locales" p 316-318 | |
23 | struct base_facet: public std::locale::facet | |
24 | { | |
25 | virtual std::string msg() const | |
26 | { return "base class"; } | |
27 | ||
28 | static std::locale::id id; | |
29 | }; | |
30 | ||
31 | std::locale::id base_facet::id; | |
32 | ||
33 | ||
34 | struct derived_facet: public base_facet | |
35 | { | |
36 | virtual std::string msg() const | |
37 | { return "derived class"; } | |
38 | ||
39 | virtual std::string msg_repeater() const | |
40 | { return "derived class derived class"; } | |
41 | ||
42 | }; | |
43 | ||
44 | // PR libstdc++/30127 | |
45 | // PR libstdc++/34449 | |
46 | int main() | |
47 | { | |
48 | bool test __attribute__((unused)) = true; | |
49 | ||
50 | using std::locale; | |
51 | using std::has_facet; | |
52 | using std::use_facet; | |
53 | ||
54 | locale loc_c = locale::classic(); | |
55 | locale loc_base(loc_c, new base_facet); | |
56 | locale loc_derived(loc_c, new derived_facet); | |
57 | ||
c66ef042 | 58 | // Standard facets. |
59 | VERIFY( has_facet<std::ctype<char> >(loc_c) ); | |
60 | VERIFY( has_facet<std::ctype<char> >(loc_base) ); | |
61 | VERIFY( has_facet<std::ctype<char> >(loc_derived) ); | |
62 | ||
63 | // User defined base facet. | |
64 | VERIFY( !has_facet<base_facet>(loc_c) ); | |
65 | VERIFY( has_facet<base_facet>(loc_base) ); | |
66 | VERIFY( has_facet<base_facet>(loc_derived) ); | |
67 | ||
68 | // User defined derived facet. | |
69 | VERIFY( !has_facet<derived_facet>(loc_c) ); | |
70 | VERIFY( !has_facet<derived_facet>(loc_base) ); | |
71 | VERIFY( has_facet<derived_facet>(loc_derived) ); | |
72 | ||
73 | ||
74 | // 1 | |
75 | try | |
76 | { | |
77 | if (has_facet<derived_facet>(loc_base)) | |
78 | { | |
79 | use_facet<derived_facet>(loc_base).msg_repeater(); | |
80 | VERIFY( false ); | |
81 | } | |
82 | } | |
83 | catch (...) | |
84 | { | |
85 | // Expect no exception. | |
86 | VERIFY( true ); | |
87 | } | |
88 | ||
89 | // 2 | |
90 | try | |
91 | { | |
92 | if (has_facet<base_facet>(loc_derived)) | |
93 | use_facet<base_facet>(loc_derived).msg(); | |
94 | else | |
95 | VERIFY( true ); | |
96 | } | |
97 | catch (...) | |
98 | { | |
99 | // Expect no exception. | |
100 | VERIFY( true ); | |
101 | } | |
102 | ||
103 | return 0; | |
104 | } |