Re: Opinions on introduction of string_view in Core

From: Peter Dimov (pdimov_at_[hidden])
Date: 2021-10-18 01:05:10

Andrey Semashev wrote:
> > Remember that libraries also need to return string_views.
> 
> Yes. Depending on the case, this can be worked around too. For example,
> have a convention that if you accept a string_view, you return the same kind
> of string_view as well.

And now all code that used to pass string literals or std::strings is broken
because of ambiguity. And if you add overloads to fix the ambiguity
(remember that the whole purpose of string_view is to let you get by without
adding overloads), you can't return both string views at once.

> If you don't accept a string_view, let the user choose
> what he wants. Pick a default, if that's too verbose.

How would that work, exactly? Take the example function signature and
show us how it's done.