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From fogbit <>
Subject Binary data (de)serializing
Date Wed, 02 Oct 2013 09:39:48 GMT

I need to (de)serializing a buffer containing binary data, particularly
between C++ (sender/receiver) and Python (receiver) applications. What data
type should i use in a .proto file?

There is already a question at StackOverlow
and there is an advise to use "binary" type. But in the same time the
manual says "This is currently a specialized form of the string type above,
added to provide better interoperability with Java. The current
plan-of-record is to elevate this to a base type at some point." Also from
what i read from the generated sources, at C++/Python "binary data type" is
transformed into "string" type, while "list<byte>" evaluates into

Haven't checked it yet, but i have suspicions that in the general case a
string deserialization could be slower than plain vector due to check of a
locale or something.

Also, in my opinion, it's "ideologically" right to use list of bytes when
one wants to store... a list of bytes, what a binary buffer is really is,

So, what data type should i use? "binary" or "list<byte>".


  • Unnamed multipart/alternative (inline, None, 0 bytes)
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