On Wednesday, 9 May 2018 at 15:06:55 UTC, Jonathan M Davis wrote:
Ultimately, the key is that the user of the function needs to
be able to know how to use the return type. In some cases, that
means returning a specific type, whereas in others, it means
using auto and being clear in the documentation about what kind
of API the return type has. As long as the API is clear, then
auto can be fantastic, but if the documentation is poorly
written (or non-existant), then it can be a serious problem.
- Jonathan M Davis
He also needs to know what requirements the parameters of the
function should satisfy. We have template constraints for that,
even though that could also have been "implemented" through
documentation.
