ok thanks a lot guys!  both ByteCount() and VarintSize32() worked for


On Oct 20, 3:13 am, Evan Jones <ev...@mit.edu> 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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