1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2008 Google Inc. All rights reserved.
3 // http://code.google.com/p/protobuf/
5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are
9 // * Redistributions of source code must retain the above copyright
10 // notice, this list of conditions and the following disclaimer.
11 // * Redistributions in binary form must reproduce the above
12 // copyright notice, this list of conditions and the following disclaimer
13 // in the documentation and/or other materials provided with the
15 // * Neither the name of Google Inc. nor the names of its
16 // contributors may be used to endorse or promote products derived from
17 // this software without specific prior written permission.
19 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 // Author: kenton@google.com (Kenton Varda)
32 // Based on original Protocol Buffers design by
33 // Sanjay Ghemawat, Jeff Dean, and others.
35 // This file contains miscellaneous helper code used by generated code --
36 // including lite types -- but which should not be used directly by users.
38 #ifndef GOOGLE_PROTOBUF_GENERATED_MESSAGE_UTIL_H__
39 #define GOOGLE_PROTOBUF_GENERATED_MESSAGE_UTIL_H__
43 #include <google/protobuf/stubs/common.h>
44 #include <google/protobuf/stubs/once.h>
49 // Annotation for the compiler to emit a deprecation message if a field marked
50 // with option 'deprecated=true' is used in the code, or for other things in
51 // generated code which are deprecated.
53 // For internal use in the pb.cc files, deprecation warnings are suppressed
55 #undef DEPRECATED_PROTOBUF_FIELD
56 #define PROTOBUF_DEPRECATED
59 // Constants for special floating point values.
60 LIBPROTOBUF_EXPORT double Infinity();
61 LIBPROTOBUF_EXPORT double NaN();
63 // Default empty string object. Don't use the pointer directly. Instead, call
64 // GetEmptyString() to get the reference.
65 LIBPROTOBUF_EXPORT extern const ::std::string* empty_string_;
66 LIBPROTOBUF_EXPORT extern ProtobufOnceType empty_string_once_init_;
68 LIBPROTOBUF_EXPORT void InitEmptyString();
70 LIBPROTOBUF_EXPORT inline const ::std::string& GetEmptyString() {
71 GoogleOnceInit(&empty_string_once_init_, &InitEmptyString);
72 return *empty_string_;
75 // Defined in generated_message_reflection.cc -- not actually part of the lite
78 // TODO(jasonh): The various callers get this declaration from a variety of
79 // places: probably in most cases repeated_field.h. Clean these up so they all
80 // get the declaration from this file.
81 LIBPROTOBUF_EXPORT int StringSpaceUsedExcludingSelf(const string& str);
83 } // namespace internal
84 } // namespace protobuf
87 #endif // GOOGLE_PROTOBUF_GENERATED_MESSAGE_UTIL_H__