1// 2000-08-17 Benjamin Kosnik <bkoz@cygnus.com>
2
3// Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
4// 2009, 2010
5// 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// Required instantiation, degenerate conversion.
29// codecvt<char, char, mbstate_t>
30void test01()
31{
32  using namespace std;
33  typedef codecvt_base::result			result;
34  typedef codecvt<char, char, mbstate_t> 	c_codecvt;
35
36  bool test __attribute__((unused)) = true;
37  const char* 		c_lit = "black pearl jasmine tea";
38  const char* 	        from_next;
39  int 			size = strlen(c_lit);
40  char* 		c_arr = new char[size];
41  char*                 c_ref = new char[size];
42  char*			to_next;
43
44  locale 		loc = locale::classic();
45  c_codecvt::state_type state;
46  const c_codecvt* 	cvt = &use_facet<c_codecvt>(loc);
47
48  // According to the resolution of DR19 (see also libstd++/9168), in
49  // case of degenerate conversion ('noconv'), "there are no changes to
50  // the values in [to, to_limit)."
51  memset(c_ref, 'X', size);
52
53  // in
54  memset(c_arr, 'X', size);
55  result r1 = cvt->in(state, c_lit, c_lit + size, from_next,
56		      c_arr, c_arr + size, to_next);
57  VERIFY( r1 == codecvt_base::noconv );
58  VERIFY( !memcmp(c_arr, c_ref, size) );
59  VERIFY( from_next == c_lit );
60  VERIFY( to_next == c_arr );
61
62  // out
63  memset(c_arr, 'X', size);
64  result r2 = cvt->out(state, c_lit, c_lit + size, from_next,
65		       c_arr, c_arr + size, to_next);
66  VERIFY( r2 == codecvt_base::noconv );
67  VERIFY( !memcmp(c_arr, c_ref, size) );
68  VERIFY( from_next == c_lit );
69  VERIFY( to_next == c_arr );
70
71  // unshift
72  memcpy(c_arr, c_lit, size);
73  result r3 = cvt->unshift(state, c_arr, c_arr + size, to_next);
74  VERIFY( r3 == codecvt_base::noconv );
75  VERIFY( !memcmp(c_arr, c_lit, size) );
76  VERIFY( to_next == c_arr );
77
78  delete [] c_arr;
79  delete [] c_ref;
80}
81
82int main ()
83{
84  test01();
85  return 0;
86}
87