1// 2003-02-06  Petur Runolfsson  <peturr02@ru.is>
2
3// Copyright (C) 2003-2015 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// Need to explicitly set the state(mbstate_t) to zero.
27// How to do this is not specified by the ISO C99 standard, so we
28// might need to add some operators to make the intuiative case
29// work:
30//   w_codecvt::state_type state00;
31//   state00 = 0;
32// or, can use this explicit "C" initialization:
33//   w_codecvt::state_type state01 = {0, 0};
34// .. except Ulrich says: Use memset. Always use memset. Feel the force...
35void
36zero_state(std::mbstate_t& state)
37{ std::memset(&state, 0, sizeof(std::mbstate_t)); }
38
39// Required instantiation
40// codecvt<wchar_t, char, mbstate_t>
41//
42// Test handling of '\0' characters in input
43// libstdc++/9246
44void test05()
45{
46  using namespace std;
47  typedef codecvt<wchar_t, char, mbstate_t> 	w_codecvt;
48  typedef codecvt_base::result			result;
49  typedef wchar_t				int_type;
50  typedef char					ext_type;
51  typedef char_traits<char>			ext_traits;
52
53  bool test __attribute__((unused)) = true;
54  const ext_type 	e_lit[] = { '\0', '\0', 'f', '\0' };
55  const int_type 	i_lit[] = { L'\0', L'\0', L'f', L'\0' };
56  const int_type*       ifrom_next;
57  int 			size = sizeof(e_lit);
58  ext_type* 		e_arr = new ext_type[size + 1];
59  ext_type* 		e_ref = new ext_type[size + 1];
60  memset(e_arr, 0xf0, size + 1);
61  memset(e_ref, 0xf0, size + 1);
62  ext_type*		eto_next;
63
64  locale 		loc;
65  const w_codecvt* 	cvt = &use_facet<w_codecvt>(loc);
66
67  // out
68  w_codecvt::state_type state02;
69  zero_state(state02);
70  result r2 = cvt->out(state02, i_lit, i_lit + size, ifrom_next,
71		       e_arr, e_arr + size, eto_next);
72  VERIFY( r2 == codecvt_base::ok );
73  VERIFY( ifrom_next == i_lit + size );
74  VERIFY( eto_next == e_arr + size );
75  VERIFY( !ext_traits::compare(e_arr, e_lit, size) );
76  VERIFY( !ext_traits::compare(eto_next, e_ref, 1) );
77
78  delete [] e_arr;
79  delete [] e_ref;
80}
81
82int main ()
83{
84  test05();
85  return 0;
86}
87