aboutsummaryrefslogtreecommitdiff
path: root/libstdc++-v3/testsuite/27_io/ios_init.cc
blob: 1905aa64ac8d326ada401553454f78c355a98cf9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
// 2001-06-05 Benjamin Kosnik  <bkoz@redhat.com>

// Copyright (C) 2001, 2002 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 2, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING.  If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.

// As a special exception, you may use this file as part of a free software
// library without restriction.  Specifically, if other files instantiate
// templates or use macros or inline functions from this file, or you compile
// this file and link it with other files to produce an executable, this
// file does not by itself cause the resulting executable to be covered by
// the GNU General Public License.  This exception does not however
// invalidate any other reasons why the executable file might be covered by
// the GNU General Public License.

// 27.4.2.1.6 class ios_base::init

#include <fstream>
#include <sstream>
#include <iostream>
#include <testsuite_hooks.h>

class gnu_filebuf: public std::filebuf
{
  int i;
public:
  gnu_filebuf(int j = 1): i(j) { }
  ~gnu_filebuf() { --i; }
  int get_i() { return i;}
};

const int initial = 4;
gnu_filebuf buf(initial);

// libstdc++/3045, in a vague way.
void test01()
{
  bool test = true;
  int k1;

  // 1 normal
  k1 = buf.get_i();
  VERIFY( k1 == initial );
  {
    std::cout.rdbuf(&buf);
  }
  k1 = buf.get_i();
  VERIFY( k1 == initial );

  // 2 syncd off
  k1 = buf.get_i();
  VERIFY( k1 == initial );
  {
    std::cout.rdbuf(&buf);
    std::ios_base::sync_with_stdio(false); // make sure doesn't clobber buf
  }
  k1 = buf.get_i();
  VERIFY( k1 == initial );

  // 3 callling init
  k1 = buf.get_i();
  VERIFY( k1 == initial );
  {
    std::cout.rdbuf(&buf);
    std::ios_base::Init make_sure_initialized;
  }
  k1 = buf.get_i();
  VERIFY( k1 == initial );
}

// Non-required instantiations don't have the required facets inbued,
// by default, into the locale object.
// See 27.4.4.1
class gnu_ios: public std::basic_ios<char> { };

void test02() 
{
  bool test = true;

  // 01: Doesn't call basic_ios::init, which uses ctype<char_type>..
  // This should be unambiguously correct.
  try
    {
      gnu_ios gios;
    }
  catch(...)
    { 
      test = false; 
    }

  // 02: Calls basic_ios::init, which may call ctype<char_type>...
  try
    {
      std::basic_string<unsigned short>        	str;
      std::basic_ostringstream<unsigned short> 	oss(str);
      
      // Try each member functions for unformatted io.
      // put
      oss.put(324);

      // write
      const unsigned short us[4] = {1246, 433, 520, 0};
      oss.write(us, 4);

      // flush
      oss.flush();
    }
  catch(const std::bad_cast& obj)
    {
      // Should be able to do the above without calling fill() and
      // forcing a call to widen...
      test = false;
    }
  catch(...)
    {
      test = false;
    }
  VERIFY( test );
}

// libstdc++/3983
void test03()
{
  using namespace std;
  bool test = true;

  // input streams
  basic_istringstream<unsigned char> iss_uc;
  unsigned char arr[6] = { 'a', 'b', 'c', 'd', 'e' };

  // Sentry uses locale info, so have to try one formatted input.
  try 
    { 
      int i;
      iss_uc >> i;
    }
  catch (bad_cast& obj)
    { }
  catch (exception& obj)
    { test = false; }
  
  try 
    { 
      iss_uc >> arr;
    }
  catch (bad_cast& obj)
    { }
  catch (exception& obj)
    { test = false; }
  
  try 
    { 
      iss_uc >> ws;
    }
  catch (bad_cast& obj)
    { }
  catch (exception& obj)
    { test = false; }
 
  try 
    { 
      basic_string<unsigned char> s_uc(arr);
      iss_uc >> s_uc;
    }
  catch (bad_cast& obj)
    { }
  catch (exception& obj)
    { test = false; }

  // output streams
  basic_ostringstream<unsigned char> oss_uc;

  try 
    { 
      bool b = true;
      oss_uc << b;
    }
  catch (bad_cast& obj)
    { }
  catch (exception& obj)
    { test = false; }
   
  VERIFY( test );
}

// libstdc++/5268
int test04()
{
  std::stringbuf b1;
  std::cout.rdbuf( &b1 );
  std::cout << "hello\n";
  return 0;
}

#if !__GXX_WEAK__
// Explicitly instantiate for systems with no COMDAT or weak support.
template 
  std::basic_string<unsigned short>::size_type 
  std::basic_string<unsigned short>::_Rep::_S_max_size;

template 
  unsigned short
  std::basic_string<unsigned short>::_Rep::_S_terminal;

template 
  std::basic_string<unsigned char>::size_type 
  std::basic_string<unsigned char>::_Rep::_S_max_size;

template 
  unsigned char
  std::basic_string<unsigned char>::_Rep::_S_terminal;
#endif

int main()
{
  test01();
  test02();
  test03();
  test04();
  return 0;
}