2 // Testing filebuf for the C++ library testsuite.
4 // Copyright (C) 2003 Free Software Foundation, Inc.
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 2, or (at your option)
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.
17 // You should have received a copy of the GNU General Public License along
18 // with this library; see the file COPYING. If not, write to the Free
19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
22 // As a special exception, you may use this file as part of a free software
23 // library without restriction. Specifically, if other files instantiate
24 // templates or use macros or inline functions from this file, or you compile
25 // this file and link it with other files to produce an executable, this
26 // file does not by itself cause the resulting executable to be covered by
27 // the GNU General Public License. This exception does not however
28 // invalidate any other reasons why the executable file might be covered by
29 // the GNU General Public License.
31 #ifndef _GLIBCXX_TESTSUITE_IO_H
32 #define _GLIBCXX_TESTSUITE_IO_H
38 // Used to verify the constraints/requirements on get and put areas
40 // 27.5.1 - Stream buffer requirements: get and put areas
41 // 27.8.1.1 - Template class basic_filebuf p 3
42 // If the file is not open (ios_base::in) -> input seq. cannot be read
43 // If the file is not open (ios_base::out) -> output seq. cannot be written
44 // Joint file position
45 // 27.8.1.4 - Overridden virtual functions p9
46 // If unbuffered, pbase == pptr == NULL
47 class constraint_filebuf: public std::filebuf
53 bool two = this->pptr() != NULL;
54 bool one = this->pptr() < this->epptr();
61 bool one = this->gptr() != NULL;
62 bool two = this->gptr() < this->egptr();
70 bool one = this->pbase() == NULL;
71 bool two = this->pptr() == NULL;
76 // Used to check if basic_streambuf::pubsync() has been called.
77 // This is useful for checking if a function creates [io]stream::sentry
78 // objects, since the sentry constructors call tie()->flush().
79 class sync_streambuf : public std::streambuf
86 : m_sync_called(false)
89 bool sync_called() const
90 { return m_sync_called; }
100 // Throws on all overflow and underflow calls.
101 struct underflow_error: std::exception { };
102 struct overflow_error: std::exception { };
103 struct positioning_error: std::exception { };
105 struct fail_streambuf : std::streambuf
118 virtual int_type underflow()
120 throw underflow_error();
124 virtual int_type uflow()
126 throw underflow_error();
133 throw overflow_error();
138 seekoff(off_type, std::ios_base::seekdir, std::ios_base::openmode)
140 throw positioning_error();
141 return pos_type(off_type(-1));
145 seekpos(pos_type, std::ios_base::openmode)
147 throw positioning_error();
148 return pos_type(off_type(-1));
154 throw positioning_error();
159 // Facets that throw an exception for every virtual function.
160 struct facet_error: std::exception { };
162 class fail_num_get : public std::num_get<char>
164 typedef std::ios_base ios_base;
168 do_get(iter_type a, iter_type, ios_base&, ios_base::iostate&, bool&) const
169 { throw facet_error(); return iter_type(); }
172 do_get(iter_type, iter_type, ios_base&, ios_base::iostate&, long&) const
173 { throw facet_error(); return iter_type(); }
176 do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
177 unsigned short&) const
178 { throw facet_error(); return iter_type(); }
181 do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
183 { throw facet_error(); return iter_type(); }
186 do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
187 unsigned long&) const
188 { throw facet_error(); return iter_type(); }
190 #ifdef _GLIBCXX_USE_LONG_LONG
192 do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
194 { throw facet_error(); return iter_type(); }
197 do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
198 unsigned long long&) const
199 { throw facet_error(); return iter_type(); }
203 do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
205 { throw facet_error(); return iter_type(); }
208 do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
210 { throw facet_error(); return iter_type(); }
213 do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
215 { throw facet_error(); return iter_type(); }
218 do_get(iter_type, iter_type, ios_base&, ios_base::iostate& __err,
220 { throw facet_error(); return iter_type(); }
223 class fail_num_put : public std::num_put<char>
225 typedef std::ios_base ios_base;
229 do_put(iter_type, ios_base&, char_type __fill, bool __v) const
230 { throw facet_error(); return iter_type(NULL); }
233 do_put(iter_type, ios_base&, char_type __fill, long __v) const
234 { throw facet_error(); return iter_type(NULL); }
237 do_put(iter_type, ios_base&, char_type __fill, unsigned long) const
238 { throw facet_error(); return iter_type(NULL); }
240 #ifdef _GLIBCXX_USE_LONG_LONG
242 do_put(iter_type, ios_base&, char_type __fill, long long __v) const
243 { throw facet_error(); return iter_type(NULL); }
246 do_put(iter_type, ios_base&, char_type __fill, unsigned long long) const
247 { throw facet_error(); return iter_type(NULL); }
251 do_put(iter_type, ios_base&, char_type __fill, double __v) const
252 { throw facet_error(); return iter_type(NULL); }
255 do_put(iter_type, ios_base&, char_type __fill, long double __v) const
256 { throw facet_error(); return iter_type(NULL); }
259 do_put(iter_type, ios_base&, char_type __fill, const void* __v) const
260 { throw facet_error(); return iter_type(NULL); }
262 }; // namespace __gnu_test
264 #endif // _GLIBCXX_TESTSUITE_IO_H