With some effort you can do this using the reflection API, but if possible
it would be even better to avoid using required fields.
On Tue, Sep 8, 2020 at 6:44 PM 童虎 <huhuan...@gmail.com> wrote:
> I have a protobuf like this:
>
> ```
> syntax = "proto2";
> message Foo {
> required int foo1 = 1;
> required int foo2 = 2;
> ...
> required int foo20 = 20;
> }
> ```
>
> When I use the generated Foo class in c++. I want to create a instance
> serialized it. Looks like this:
>
> ```
> Foo foo;
> foo.set_foo1(1);
> // What I want is ommit the others with them default value.
> string fb;
> foo.SerializeToString(&pb);
> ```
> But at runtime, this will throw exception says "The foo2...foo20" is not
> setted.
>
> What I want is default value 0. Setting them seems like boring
>
> Can I do this. My english is poor, If you can't understand me, please let
> me know. Thank you.
>
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