Is it possible to "overload" based on visibility?
schveiguy at gmail.com
Fri Sep 25 14:21:59 UTC 2020
On 9/25/20 10:12 AM, 60rntogo wrote:
> On Friday, 25 September 2020 at 13:15:27 UTC, Steven Schveighoffer wrote:
ou can use auto ref to alleviate that:
>> int x()(auto ref Foo f) // needs to be a template for auto ref to work
> That's a good point, thanks. Since we are on that topic, how would that
> differ from the following?
> int x(in Foo f)
in does not mean "take by reference", it means "scope const"
> And going further, if instead of int I wanted to return something that
> might also be expensive to copy, what would be the best way to declare
> the function?
It depends on if you want to return a copy. If you want to return a
reference if the source is a reference, use auto ref on the return as
well. But if you still want to protect the internal data, it would have
to be const.
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