Thanks Zach. The documentation is generated from comments in the source code coded_stream.h <https://github.com/google/protobuf/blob/master/src/google/protobuf/io/coded_stream.h>. Could you help send us a patch to fix this problem? (Or file an issue on the github site https://github.com/google/protobuf).
On Mon, Nov 3, 2014 at 1:19 PM, <[email protected]> wrote: > On the page " > https://developers.google.com/protocol-buffers/docs/reference/cpp/google.protobuf.io.coded_stream > " > > there is an example at the top of the page which contains code that > appears to show a user how to create and serialize a message to a file. > However the flags to open the file lack the O_CREAT flag which allows > creating the file if it doesn't exist. I was troubleshooting a situation > where this snippet was used and compiled, but never created a file. > > The full snippet is below along with my correction below that. > > Hopefully this saves others some time after copy/pasting that example and > finding it doesn't write anything. > > Cheers, > Zach Davis > > int fd = open("myfile", O_WRONLY); > ZeroCopyOutputStream* raw_output = new FileOutputStream(fd); > CodedOutputStream* coded_output = new CodedOutputStream(raw_output); > > int magic_number = 1234; > char text[[]] = "Hello world!"; > coded_output->WriteLittleEndian32(magic_number); > coded_output->WriteVarint32(strlen(text)); > coded_output->WriteRaw(text, strlen(text)); > > delete coded_output; > delete raw_output; > close(fd); > > int fd = open("myfile", O_CREAT | O_WRONLY); > ZeroCopyOutputStream* raw_output = new FileOutputStream(fd); > CodedOutputStream* coded_output = new CodedOutputStream(raw_output); > > int magic_number = 1234; > char text[[]] = "Hello world!"; > coded_output->WriteLittleEndian32(magic_number); > coded_output->WriteVarint32(strlen(text)); > coded_output->WriteRaw(text, strlen(text)); > > delete coded_output; > delete raw_output; > close(fd); > > -- > You received this message because you are subscribed to the Google Groups > "Protocol Buffers" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/protobuf. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/protobuf. For more options, visit https://groups.google.com/d/optout.
