1 // 2000-08-17 Benjamin Kosnik <bkoz@cygnus.com>
2
3 // Copyright (C) 2000-2018 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 // 22.2.1.5 - Template class codecvt [lib.locale.codecvt]
21
22 #include <locale>
23 #include <cstring>
24 #include <testsuite_hooks.h>
25
26 // Required instantiation, degenerate conversion.
27 // codecvt<char, char, mbstate_t>
test01()28 void test01()
29 {
30 using namespace std;
31 typedef codecvt_base::result result;
32 typedef codecvt<char, char, mbstate_t> c_codecvt;
33
34 const char* c_lit = "black pearl jasmine tea";
35 const char* from_next;
36 int size = 23;
37 char* c_arr = new char[size];
38 char* c_ref = new char[size];
39 char* to_next;
40
41 locale loc = locale::classic();
42 c_codecvt::state_type state;
43 const c_codecvt* cvt = &use_facet<c_codecvt>(loc);
44
45 // According to the resolution of DR19 (see also libstd++/9168), in
46 // case of degenerate conversion ('noconv'), "there are no changes to
47 // the values in [to, to_limit)."
48 memset(c_ref, 'X', size);
49
50 // in
51 memset(c_arr, 'X', size);
52 result r1 = cvt->in(state, c_lit, c_lit + size, from_next,
53 c_arr, c_arr + size, to_next);
54 VERIFY( r1 == codecvt_base::noconv );
55 VERIFY( !memcmp(c_arr, c_ref, size) );
56 VERIFY( from_next == c_lit );
57 VERIFY( to_next == c_arr );
58
59 delete [] c_arr;
60 delete [] c_ref;
61 }
62
main()63 int main ()
64 {
65 test01();
66 return 0;
67 }
68