1 // { dg-require-namedlocale "en_US.UTF-8" }
2
3 // 2003-02-06 Petur Runolfsson <peturr02@ru.is>
4
5 // Copyright (C) 2003-2021 Free Software Foundation, Inc.
6 //
7 // This file is part of the GNU ISO C++ Library. This library is free
8 // software; you can redistribute it and/or modify it under the
9 // terms of the GNU General Public License as published by the
10 // Free Software Foundation; either version 3, or (at your option)
11 // any later version.
12
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 // GNU General Public License for more details.
17
18 // You should have received a copy of the GNU General Public License along
19 // with this library; see the file COPYING3. If not see
20 // <http://www.gnu.org/licenses/>.
21
22 // 22.2.1.5 - Template class codecvt [lib.locale.codecvt]
23
24 #include <locale>
25 #include <cstring>
26 #include <testsuite_hooks.h>
27
28 // Need to explicitly set the state(mbstate_t) to zero.
29 // How to do this is not specified by the ISO C99 standard, so we
30 // might need to add some operators to make the intuiative case
31 // work:
32 // w_codecvt::state_type state00;
33 // state00 = 0;
34 // or, can use this explicit "C" initialization:
35 // w_codecvt::state_type state01 = {0, 0};
36 // .. except Ulrich says: Use memset. Always use memset. Feel the force...
37 void
zero_state(std::mbstate_t & state)38 zero_state(std::mbstate_t& state)
39 { std::memset(&state, 0, sizeof(std::mbstate_t)); }
40
41 // Required instantiation
42 // codecvt<wchar_t, char, mbstate_t>
43 //
44 // Test handling of illegal input sequence in UTF-8.
test07()45 void test07()
46 {
47 using namespace std;
48 typedef codecvt<wchar_t, char, mbstate_t> w_codecvt;
49 typedef codecvt_base::result result;
50 typedef wchar_t int_type;
51 typedef char ext_type;
52 typedef char_traits<wchar_t> int_traits;
53
54 const ext_type* e_lit = "a\xc0\xff";
55 const ext_type* efrom_next;
56 const int_type* i_lit = L"a";
57 int size = strlen(e_lit);
58 int_type* i_arr = new int_type[size + 1];
59 int_type* i_ref = new int_type[size + 1];
60 wmemset(i_arr, 0xdeadbeef, size + 1);
61 wmemset(i_ref, 0xdeadbeef, size + 1);
62 int_type* ito_next;
63
64 locale loc = locale("en_US.UTF-8");
65 locale::global(loc);
66 const w_codecvt* cvt = &use_facet<w_codecvt>(loc);
67
68 // in
69 w_codecvt::state_type state01;
70 zero_state(state01);
71 result r1 = cvt->in(state01, e_lit, e_lit + size, efrom_next,
72 i_arr, i_arr + size, ito_next);
73 VERIFY( r1 == codecvt_base::error );
74 VERIFY( efrom_next == e_lit + 1 );
75 VERIFY( ito_next == i_arr + 1 );
76 VERIFY( !int_traits::compare(i_arr, i_lit, 1) );
77 VERIFY( !int_traits::compare(ito_next, i_ref, size) );
78
79 delete [] i_arr;
80 delete [] i_ref;
81 }
82
main()83 int main ()
84 {
85 test07();
86 return 0;
87 }
88