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1 // 2000-09-11 Benjamin Kosnik <bkoz@redhat.com>
2
3 // Copyright (C) 2000-2022 Free Software Foundation, Inc.
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 // 22.1.2 locale globals [lib.locale.global.templates]
21
22 #include <cwchar> // for mbstate_t
23 #include <locale>
24 #include <typeinfo>
25 #include <testsuite_hooks.h>
26
27 typedef std::codecvt<char, char, std::mbstate_t> ccodecvt;
28
29 class gnu_codecvt: public ccodecvt { };
30
31 void test01()
32 {
33 using namespace std;
34
35 // construct a locale object with the C facet
36 const locale& cloc = locale::classic();
37 // sanity check the constructed locale has the normal facet
38 VERIFY( has_facet<ccodecvt>(cloc) );
39
40 // construct a locale object with the specialized facet.
41 locale loc(locale::classic(), new gnu_codecvt);
42 // sanity check the constructed locale has the specialized facet.
43 VERIFY( has_facet<gnu_codecvt>(loc) );
44
45 try
46 { const ccodecvt& cvt01 __attribute__((unused)) = use_facet<ccodecvt>(cloc); }
47 catch(...)
48 { VERIFY( false ); }
49
50 try
51 { const gnu_codecvt& cvt02 __attribute__((unused)) = use_facet<gnu_codecvt>(loc); }
52 catch(...)
53 { VERIFY( false ); }
54
55 try
56 { const ccodecvt& cvt03 __attribute__((unused)) = use_facet<gnu_codecvt>(cloc); }
57 catch(bad_cast& obj)
58 { VERIFY( true ); }
59 catch(...)
60 { VERIFY( false ); }
61 }
62
63 int main ()
64 {
65 test01();
66
67 return 0;
68 }