1// 1999-10-14 bkoz
2
3// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009
4// Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 3, or (at your option)
10// any later version.
11
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16
17// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING3.  If not see
19// <http://www.gnu.org/licenses/>.
20
21
22// 27.6.1.1.2 class basic_istream::sentry
23
24#include <istream>
25#include <sstream>
26#include <typeinfo>
27#include <ext/pod_char_traits.h>
28#include <testsuite_hooks.h>
29#include <testsuite_character.h>
30
31void test01()
32{
33  using namespace std;
34  using __gnu_test::pod_ushort;
35  typedef basic_string<pod_ushort> 	string_type;
36  typedef basic_stringbuf<pod_ushort> 	stringbuf_type;
37  typedef basic_istream<pod_ushort> 	istream_type;
38
39  bool test __attribute__((unused)) = true;
40
41
42  const string_type str01;
43  stringbuf_type strbuf01;
44  stringbuf_type strbuf02(str01);
45  istream_type istr01(&strbuf01);
46  istream_type istr02(&strbuf02);
47
48  // test negatives
49  try
50    {
51      istream_type::sentry sentry01(istr01);
52    }
53  catch (std::bad_cast& obj)
54    {
55      // Ok, throws bad_cast because locale has no ctype facet.
56    }
57  catch (...)
58    {
59      VERIFY( false );
60    }
61
62  try
63    {
64      istream_type::sentry sentry02(istr01, true);
65    }
66  catch (std::bad_cast& obj)
67    {
68      // Ok, throws bad_cast because locale has no ctype facet.
69    }
70  catch (...)
71    {
72      VERIFY( false );
73    }
74
75  // imbued.
76  const std::locale loc(std::locale::classic(), new std::ctype<pod_ushort>);
77  istr01.imbue(loc);
78  try
79    {
80      istream_type::sentry sentry01(istr01);
81      VERIFY( bool(sentry01) == false );
82    }
83  catch (...)
84    {
85      VERIFY( false );
86    }
87
88  try
89    {
90      istream_type::sentry sentry02(istr01, true);
91      VERIFY( bool(sentry02) == false );
92    }
93  catch (...)
94    {
95      VERIFY( false );
96    }
97
98  // test positive
99  try
100    {
101      istream_type::sentry sentry03(istr02);
102    }
103  catch (std::bad_cast& obj)
104    {
105      // Ok, throws bad_cast because locale has no ctype facet.
106    }
107  catch (...)
108    {
109      VERIFY( false );
110    }
111
112  try
113    {
114      istream_type::sentry sentry04(istr02, true);
115    }
116  catch (std::bad_cast& obj)
117    {
118      // Ok, throws bad_cast because locale has no ctype facet.
119    }
120  catch (...)
121    {
122      VERIFY( false );
123    }
124
125  // imbued.
126  istr02.imbue(loc);
127  try
128    {
129      istr02.clear();
130      istream_type::sentry sentry03(istr02);
131      // ... as eofbit set.
132      VERIFY( bool(sentry03) == false );
133    }
134  catch (...)
135    {
136      VERIFY( false );
137    }
138
139  try
140    {
141      istr02.clear();
142      istream_type::sentry sentry04(istr02, true);
143      VERIFY( bool(sentry04) == true );
144    }
145  catch (...)
146    {
147      VERIFY( false );
148    }
149}
150
151#if !__GXX_WEAK__
152// Explicitly instantiate for systems with no COMDAT or weak support.
153template
154  const std::basic_string<__gnu_test::pod_ushort>::size_type
155  std::basic_string<__gnu_test::pod_ushort>::_Rep::_S_max_size;
156
157template
158  const __gnu_test::pod_ushort
159  std::basic_string<__gnu_test::pod_ushort>::_Rep::_S_terminal;
160#endif
161
162int main()
163{
164  test01();
165  return 0;
166}
167