Exit immediately for empty arrays

[christiangnrd]

Otherwise it fails. See JuliaGPU/Metal.jl#321

[maleadt]

When does isempty(A) not imply length(A) == 0? That seems very surprising.

[christiangnrd]

When does isempty(A) not imply length(A) == 0? That seems very surprising.

I think they're always equivalent. The functional change of this PR is that it used to return nothing in randn if the input array was empty, and the statement was missing in rand.

Then I replaced length(A) == 0 with isempty(A) for personal preference/slight clarity reasons, but I can change it back to length(A) == 0 if you prefer that.

[maleadt]

Then I replaced length(A) == 0 with isempty(A) for personal preference/slight clarity reasons, but I can change it back to length(A) == 0 if you prefer that.

No need, I just missed the actual change because of that :-)

LGTM, thanks!

[christiangnrd]

Can a new release be tagged?