So how do you change the code:
ZeroCopyOutputStream* raw_output = new ArrayOutputStream(snap_buf2,
snap1.ByteSize()+numBytesForDelim); //Here?
CodedOutputStream* coded_output = new
CodedOutputStream(raw_output);
coded_output->WriteVarint32(snap1.ByteSize()); //Here?
snap1.SerializeToCodedStream(coded_output);
Anthony
On Wednesday, October 20, 2010 10:02:31 AM UTC-7, Paul wrote:
>
> ok thanks a lot guys! both ByteCount() and VarintSize32() worked for
> me!
>
> Paul
>
> On Oct 20, 3:13 am, Evan Jones <[email protected]> wrote:
> > On Oct 20, 2010, at 2:13 , Kenton Varda wrote:
> >
> > > But you are actually writing a varint32, which can be anywhere
> > > between 1 and 5 bytes depending on the value.
> >
> > > Use CodedOutputStream::Varint32Size() to compute the number of bytes
> > > needed to encode a particular value.
> >
> > This has the advantage that you can allocate a buffer of exactly the
> > right size, rather than adding 100 as an estimate. However, you can
> > also find the final size after all the writes with
> > CodedOutputStream::ByteCount()
> >
> > You should not need to do any byte swapping if you are serializing and
> > deserializing integers using the protobuf API: it handles any required
> > byte swapping for you.
> >
> > Evan
> >
> > --
> > Evan Joneshttp://evanjones.ca/
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