1 // 2003-05-13 Benjamin Kosnik  <bkoz@redhat.com>
2 
3 // Copyright (C) 2003-2019 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 // 27.8.1.4 Overridden virtual functions
21 
22 #include <fstream>
23 #include <locale>
24 #include <testsuite_hooks.h>
25 
26 class state_codecvt : public std::codecvt<wchar_t, char, std::mbstate_t>
27 {
28 protected:
29   int
do_encoding() const30   do_encoding() const throw()
31   { return -1; }
32 };
33 
test03()34 void test03()
35 {
36   using namespace std;
37 
38   locale loc_s(locale::classic(), new state_codecvt);
39   wfilebuf ob;
40   ob.pubimbue(loc_s);
41   VERIFY( ob.getloc() == loc_s );
42 
43   // 2 "if encoding of current locale is state dependent" and
44   // not at the beginning of the file fails...
45   locale loc_c = locale::classic();
46   locale ret = ob.pubimbue(loc_s);
47   VERIFY( ob.getloc() == loc_s );
48 }
49 
main()50 int main()
51 {
52   test03();
53   return 0;
54 }
55