1// { dg-require-namedlocale "" }
2
3// 2003-02-06  Petur Runolfsson  <peturr02@ru.is>
4
5// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009 Free Software Foundation
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...
37void
38zero_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.
45void test07()
46{
47  using namespace std;
48  typedef codecvt<wchar_t, char, mbstate_t> 	w_codecvt;
49  typedef wchar_t				int_type;
50  typedef char					ext_type;
51
52  bool test __attribute__((unused)) = true;
53  const ext_type* 	e_lit = "a\xc0\xff";
54  int 			size = strlen(e_lit);
55
56  locale loc = locale("en_US.UTF-8");
57  locale::global(loc);
58  const w_codecvt* 	cvt = &use_facet<w_codecvt>(loc);
59
60  w_codecvt::state_type state01;
61  zero_state(state01);
62  int i = cvt->length(state01, e_lit, e_lit + size, 1);
63  VERIFY( i == 1 );
64
65  w_codecvt::state_type state02;
66  zero_state(state02);
67  int j = cvt->length(state02, e_lit, e_lit + size, size);
68  VERIFY( j == 1 );
69
70  w_codecvt::state_type state03;
71  zero_state(state03);
72  int k = cvt->length(state03, e_lit, e_lit + size, size * 2);
73  VERIFY( k == 1 );
74}
75
76int main ()
77{
78  test07();
79  return 0;
80}
81