1 // 2000-08-17 Benjamin Kosnik <bkoz@cygnus.com>
2
3 // Copyright (C) 2000-2016 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 bool test __attribute__((unused)) = true;
35 const char* c_lit = "black pearl jasmine tea";
36 const char* from_next;
37 int size = std::strlen(c_lit);
38 char* c_arr = new char[size];
39 char* c_ref = new char[size];
40 char* to_next;
41
42 locale loc = locale::classic();
43 c_codecvt::state_type state;
44 const c_codecvt* cvt = &use_facet<c_codecvt>(loc);
45
46 // According to the resolution of DR19 (see also libstd++/9168), in
47 // case of degenerate conversion ('noconv'), "there are no changes to
48 // the values in [to, to_limit)."
49 memset(c_ref, 'X', size);
50
51 // in
52 memset(c_arr, 'X', size);
53 result r1 = cvt->in(state, c_lit, c_lit + size, from_next,
54 c_arr, c_arr + size, to_next);
55 VERIFY( r1 == codecvt_base::noconv );
56 VERIFY( !memcmp(c_arr, c_ref, size) );
57 VERIFY( from_next == c_lit );
58 VERIFY( to_next == c_arr );
59
60 // out
61 memset(c_arr, 'X', size);
62 result r2 = cvt->out(state, c_lit, c_lit + size, from_next,
63 c_arr, c_arr + size, to_next);
64 VERIFY( r2 == codecvt_base::noconv );
65 VERIFY( !memcmp(c_arr, c_ref, size) );
66 VERIFY( from_next == c_lit );
67 VERIFY( to_next == c_arr );
68
69 // unshift
70 memcpy(c_arr, c_lit, size);
71 result r3 = cvt->unshift(state, c_arr, c_arr + size, to_next);
72 VERIFY( r3 == codecvt_base::noconv );
73 VERIFY( !memcmp(c_arr, c_lit, size) );
74 VERIFY( to_next == c_arr );
75
76 delete [] c_arr;
77 delete [] c_ref;
78 }
79
main()80 int main ()
81 {
82 test01();
83 return 0;
84 }
85