Re: [PATCH v4 3/9] checkout.[ch]: move struct declaration into *.h

> Thomas Gummerer <t.gummerer@gmail.com> writes:
>
>> We seem to have plenty of structs defined in '.c' files, if they are
>> only needed there.  Its use also seems to be single purpose for the
>> callback data, so I'm a bit puzzled how having this in a header file
>> instead of the .c file would be helpful?
>>
>> I feel like having only the "public" part in the header file also
>> helps developers that are just looking for documentation of the
>> functions they are looking at, by having less things to go through,
>> that they wouldn't necessarily care about.
>
> Yup, sounds like a sensible criterion to choose between <*.h> and
> <*.c>.