The assignment operator simply wraps CopyFrom, so the behavior is exactly
the same. Stylistically we prefer to use CopyFrom over =, because it can be
an expensive operation and = makes it look deceptively simple. The operator=
overload primarily exists for compatibility with STL, but of course you're
free to use it as you choose.
On Thu, Jul 21, 2011 at 5:02 PM, JonnyDee <jonny.de...@googlemail.com>wrote:
> Hello,
>
> I've assumed the API allows to use the assignment operator to copy the
> content of on message to another one like this:
>
> MyMessage msg1, msg2;
> msg1.set_name("Foo Bar");
> msg2 = msg1;
>
> My assumption was the using the API like this would be intuitively
> enough to let the generated class files support it.
> But as I am currently struggling with strange behaviors of my code I
> took the time to analyze the protobuf API in more detail, but I could
> not find any operator overloading, which delegates the assigment
> operation to a call equivalent to msg2.CopyFrom(msg1). Also, examples
> I could find only use those explicit method calls. So now I'm not sure
> if I am using the API wrongly or not. Would you mind to let me know if
> using assignment instead of 'CopyFrom' method is safe or not? I would
> have to change a lot of code if I needed to call that method in order
> to be safe. So I just would like to know if this effort is worth it.
>
> Best regards,
> Jonny
>
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