On Tue, Jul 2, 2013 at 10:32 AM, <proto...@googlecode.com> wrote: > > Comment #2 on issue 527 by guillaum...@gmail.com: C++: Descriptor is set > to null when loading more than one file. > http://code.google.com/p/**protobuf/issues/detail?id=527<http://code.google.com/p/protobuf/issues/detail?id=527> > > WRITE > fstream output(charPath, ios::out | ios::trunc | ios::binary); > if (!reportHeader.**SerializeToOstream(&output)) > { > cerr << "Failed to write protocol buffer." << endl; > return -1; > } > > READ > fstream in(inPath, ios::in | ios::binary); > if (!deserializedReportHeader.**ParseFromIstream(&in)) > { > cerr << "Failed to parse proto." << endl; > exit(1); > } > > And I get the descriptor using > const Descriptor* descriptor = pMessage->GetDescriptor(); > int a = descriptor->field_count(); > You were probably mistaking descriptor->field_count() as the number of fields set? To get a list of fields set, you should use message->GetReflection()->ListFields().
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