Re: [protobuf] Can I use int16 instead of int32 to verify a variable？

[Feng Xiao]

On Thu, Apr 25, 2013 at 9:36 PM, 王海龙 <hailong...@gmail.com> wrote:

Hi,
I have a question here,
I want use int16 (short) to verify a variable,because int32 is too big for me , I want to reduce the length of my package.

What do you mean by "the length of your package"? I believe using int16 doesn't save you any memory or decrease the wire format size.

 

Is there any way to do this?
Thank you !

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[Marc Gravell]

On 7 May 2013 18:53, "Marc Gravell" <marc.g...@gmail.com> wrote:

Protobuf has a fee encodings for integer data, which basically come down to:

- varint (with or without zigzag)
- fixed-32 (always 4 bytes)
- fixed-64 (always 8 bytes)

For 16 bits, you will do best with varint. If the data can be negative (signed), ensure you are using the zigzag form (sint32). But that is all the options.

Marc

On 7 May 2013 18:36, "王海龙" <hailong...@gmail.com> wrote:

Hi,
I have a question here,
I want use int16 (short) to verify a variable,because int32 is too big for me , I want to reduce the length of my package.