On Wed, Oct 23, 2013 at 8:01 AM, Ivan L <[email protected]> wrote: > I have a code like: > > > TestMessage* output; > ::google::protobuf::Message* input; > auto reflection = output->GetReflection(); > > ... > auto extension_field = input->GetDescriptor->extension(i); > ... > > auto output_field = > reflection->FindKnownExtensionByName(extension_field->full_name()); > reflection->MutableMessage(output, output_field)->CopyFrom(*input); > > > How can I do a setting of preallocated `input` without copying - in last > statement? > You can use Swap() rather than CopyFrom() to avoid the copy.
> -- > 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/groups/opt_out. > -- 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/groups/opt_out.
