Королев Илья wrote:
> I'm studying expanded SSQLS code and I have a question.
> As I can see, field_list() (for example) return a temporary object of
> <ClassName>_field_list. And real output to stream operate with it. I wonder,
> what are advantages of such approach? Why we can't just return std::string in
> field_list()? Disadvantage is heavy *.h.
The advantage is that a list of field names is more flexible than a
single string listing the fields. This advantage matters if you don't
need all of the fields, or you need to have them in multiple formats. I
would only let you change this as you suggest if you can prove that all
uses of the field list objects only need the fields in a single format,
and they need all of them, always.