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portable_binary_oarchive.hpp
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1 #ifndef PORTABLE_BINARY_OARCHIVE_HPP
2 #define PORTABLE_BINARY_OARCHIVE_HPP
3 
4 // MS compatible compilers support #pragma once
5 #if defined(_MSC_VER)
6 # pragma once
7 #endif
8 
9 #if defined(_MSC_VER)
10 #pragma warning( push )
11 #pragma warning( disable : 4244 )
12 #endif
13 
15 // portable_binary_oarchive.hpp
16 
17 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
18 // Use, modification and distribution is subject to the Boost Software
19 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
20 // http://www.boost.org/LICENSE_1_0.txt)
21 
22 // See http://www.boost.org for updates, documentation, and revision history.
23 
24 #include <ostream>
25 #include <boost/version.hpp>
26 #include <boost/serialization/string.hpp>
27 #include <boost/archive/archive_exception.hpp>
28 #include <boost/archive/basic_binary_oprimitive.hpp>
29 #include <boost/archive/detail/common_oarchive.hpp>
30 #include <boost/archive/detail/register_archive.hpp>
31 
33 #include <boost/archive/impl/basic_binary_oprimitive.ipp>
34 
35 namespace boost { namespace archive {
36 
38 // exception to be thrown if integer read from archive doesn't fit
39 // variable being loaded
41  public boost::archive::archive_exception
42 {
43 public:
48  boost::archive::archive_exception(boost::archive::archive_exception::other_exception),
50  {}
51  virtual const char *what( ) const throw( )
52  {
53  const char *msg = "programmer error";
54  switch(m_exception_code){
55  case invalid_flags:
56  msg = "cannot be both big and little endian";
57  break;
58  default:
59  msg = boost::archive::archive_exception::what();
60  assert(false);
61  break;
62  }
63  return msg;
64  }
65 };
66 
68 // "Portable" output binary archive. This is a variation of the native binary
69 // archive. it addresses integer size and endienness so that binary archives can
70 // be passed across systems. Note:floating point types not addressed here
71 
73  public boost::archive::basic_binary_oprimitive<
74  portable_binary_oarchive,
75  std::ostream::char_type,
76  std::ostream::traits_type
77  >,
78  public boost::archive::detail::common_oarchive<
79  portable_binary_oarchive
80  >
81 {
82  typedef boost::archive::basic_binary_oprimitive<
84  std::ostream::char_type,
85  std::ostream::traits_type
86  > primitive_base_t;
87  typedef boost::archive::detail::common_oarchive<
89  > archive_base_t;
90 #ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
91 public:
92 #else
93  friend archive_base_t;
94  friend primitive_base_t; // since with override save below
95  friend class boost::archive::detail::interface_oarchive<
97  >;
98  friend class boost::archive::save_access;
99 protected:
100 #endif
101  unsigned int m_flags;
102  void save_impl(const boost::intmax_t l, const char maxsize);
103  // add base class to the places considered when matching
104  // save function to a specific set of arguments. Note, this didn't
105  // work on my MSVC 7.0 system so we use the sure-fire method below
106  // using archive_base_t::save;
107 
108  // default fall through for any types not specified here
109  template<class T>
110  void save(const T & t){
111  save_impl(t, sizeof(T));
112  }
113  void save(const std::string & t){
114  this->primitive_base_t::save(t);
115  }
116  #ifndef BOOST_NO_STD_WSTRING
117  void save(const std::wstring & t){
118  this->primitive_base_t::save(t);
119  }
120  #endif
121  void save(const float & t){
122  this->primitive_base_t::save(t);
123  // floats not supported
124  //BOOST_STATIC_ASSERT(false);
125  }
126  void save(const double & t){
127  this->primitive_base_t::save(t);
128  // doubles not supported
129  //BOOST_STATIC_ASSERT(false);
130  }
131  void save(const char & t){
132  this->primitive_base_t::save(t);
133  }
134  void save(const unsigned char & t){
135  this->primitive_base_t::save(t);
136  }
137 
138  // default processing - kick back to base class. Note the
139  // extra stuff to get it passed borland compilers
140  typedef boost::archive::detail::common_oarchive<portable_binary_oarchive>
142 #if BOOST_VERSION > 105800
143  template<class T>
144  void save_override(T & t){
145  this->detail_common_oarchive::save_override(t);
146  }
147  // explicitly convert to char * to avoid compile ambiguities
148  void save_override(const boost::archive::class_name_type & t){
149  const std::string s(t);
150  * this << s;
151  }
152  // binary files don't include the optional information
153  void save_override(
154  const boost::archive::class_id_optional_type & /* t */
155  ){}
156 #else
157  template<class T>
158  void save_override(T & t, int){
159  this->detail_common_oarchive::save_override(t, 0);
160  }
161  // explicitly convert to char * to avoid compile ambiguities
162  void save_override(const boost::archive::class_name_type & t, int){
163  const std::string s(t);
164  * this << s;
165  }
166  // binary files don't include the optional information
168  const boost::archive::class_id_optional_type & /* t */, int
169  ){}
170 #endif
171 
172  void init(unsigned int flags);
173 public:
174  portable_binary_oarchive(std::ostream & os, unsigned flags = endian_little) :
175  primitive_base_t(
176  * os.rdbuf(),
177  0 != (flags & boost::archive::no_codecvt)
178  ),
179  archive_base_t(flags),
180  m_flags(flags & (endian_big | endian_little))
181  {
182  init(flags);
183  }
184 
186  std::basic_streambuf<
187  std::ostream::char_type,
188  std::ostream::traits_type
189  > & bsb,
190  unsigned int flags
191  ) :
192  primitive_base_t(
193  bsb,
194  0 != (flags & boost::archive::no_codecvt)
195  ),
196  archive_base_t(flags),
197  m_flags(0)
198  {
199  init(flags);
200  }
201 };
202 
203 } }
204 
205 // required by export in boost version > 1.34
206 #ifdef BOOST_SERIALIZATION_REGISTER_ARCHIVE
207  BOOST_SERIALIZATION_REGISTER_ARCHIVE(portable_binary_oarchive)
208 #endif
209 
210 // required by export in boost <= 1.34
211 #define BOOST_ARCHIVE_CUSTOM_OARCHIVE_TYPES portable_binary_oarchive
212 
214 // portable_binary_oarchive.cpp
215 
216 // (C) Copyright 2002-7 Robert Ramey - http://www.rrsd.com .
217 // Use, modification and distribution is subject to the Boost Software
218 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
219 // http://www.boost.org/LICENSE_1_0.txt)
220 
221 // See http://www.boost.org for updates, documentation, and revision history.
222 
223 #include <ostream>
224 #include <boost/predef/other/endian.h>
225 
226 namespace boost { namespace archive {
227 
228 inline void
230  const boost::intmax_t l,
231  const char maxsize
232 ){
233  signed char size = 0;
234 
235  if(l == 0){
236  this->primitive_base_t::save(size);
237  return;
238  }
239 
240  boost::intmax_t ll;
241  bool negative = (l < 0);
242  if(negative)
243  ll = -l;
244  else
245  ll = l;
246 
247  do{
248  ll >>= CHAR_BIT;
249  ++size;
250  }while(ll != 0);
251 
253  static_cast<signed char>(negative ? -size : size)
254  );
255 
256  if(negative)
257  ll = -l;
258  else
259  ll = l;
260  char * cptr = reinterpret_cast<char *>(& ll);
261 #if BOOST_ENDIAN_BIG_BYTE
262  cptr += (sizeof(boost::intmax_t) - size);
263  if(m_flags & endian_little)
264  reverse_bytes(size, cptr);
265 #else
266  if(m_flags & endian_big)
267  reverse_bytes(size, cptr);
268 #endif
269  this->primitive_base_t::save_binary(cptr, size);
270 }
271 
272 inline void
273 portable_binary_oarchive::init(unsigned int flags) {
274  if(m_flags == (endian_big | endian_little)){
275  boost::serialization::throw_exception(
277  );
278  }
279  if(0 == (flags & boost::archive::no_header)){
280  // write signature in an archive version independent manner
281  const std::string file_signature(
282  boost::archive::BOOST_ARCHIVE_SIGNATURE()
283  );
284  * this << file_signature;
285  // ignore archive version checking
286  const boost::archive::library_version_type v{};
287  /*
288  // write library version
289  const boost::archive::library_version_type v(
290  boost::archive::BOOST_ARCHIVE_VERSION()
291  );
292  */
293  * this << v;
294  }
295  save(static_cast<unsigned char>(m_flags >> CHAR_BIT));
296 }
297 
298 } }
299 
300 namespace boost {
301 namespace archive {
302 
303 namespace detail {
304  template class archive_serializer_map<portable_binary_oarchive>;
305 }
306 
307 // template class basic_binary_oprimitive<
308 // portable_binary_oarchive,
309 // std::ostream::char_type,
310 // std::ostream::traits_type
311 // > ;
312 
313 } // namespace archive
314 } // namespace boost
315 
316 #if defined(_MSC_VER)
317 #pragma warning( pop )
318 #endif
319 
320 #endif // PORTABLE_BINARY_OARCHIVE_HPP
const uint32_t T[512]
void save(Archive &a, const std::unordered_map< h_key, hval > &x, const boost::serialization::version_type ver)
int64_t intmax_t
Definition: stdint.h:169
::std::string string
Definition: gtest-port.h:1097
boost::archive::detail::common_oarchive< portable_binary_oarchive > detail_common_oarchive
void reverse_bytes(signed char size, char *address)
portable_binary_oarchive_exception(exception_code c=invalid_flags)
void save_impl(const boost::intmax_t l, const char maxsize)
declaration and default definition for the functions used the API
Definition: expect.cpp:33
enum boost::archive::portable_binary_oarchive_exception::exception_code m_exception_code
::std::wstring wstring
Definition: gtest-port.h:1103
void save_override(const boost::archive::class_id_optional_type &, int)
void save_override(const boost::archive::class_name_type &t, int)
portable_binary_oarchive(std::basic_streambuf< std::ostream::char_type, std::ostream::traits_type > &bsb, unsigned int flags)
portable_binary_oarchive(std::ostream &os, unsigned flags=endian_little)