[Issue 15738] Problem with std.experimental.ndslice empty()

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15738

Илья Ярошенко  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |WONTFIX

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[Issue 15738] Problem with std.experimental.ndslice empty()

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15738

--- Comment #3 from Илья Ярошенко  ---
(In reply to bearophile_hugs from comment #2)
> (In reply to Илья Ярошенко from comment #1)
> > This is feature, empty is empty!0, so it checks only first dimension. In
> > addition, this  is very important for optimization reasons. emptyAny method
> > may be added for desirable behavior.
> 
> I think it's a trap. empty === enoty!0 is not explicit. So it should be
> designed the other way, in an explicit way. If you want to add a empty()
> method, it should work on the whole tensor. If you want to see if one
> coordinate is empty, you can add a more specialized method, like emptySide,
> or something similar.

Slice is not a container, so there is no reason for such behavior.

`empty` must be as fast as possible because a user may use slices with
std.algorithm and std.range.

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[Issue 15738] Problem with std.experimental.ndslice empty()

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15738

--- Comment #2 from bearophile_h...@eml.cc ---
(In reply to Илья Ярошенко from comment #1)
> This is feature, empty is empty!0, so it checks only first dimension. In
> addition, this  is very important for optimization reasons. emptyAny method
> may be added for desirable behavior.

I think it's a trap. empty === enoty!0 is not explicit. So it should be
designed the other way, in an explicit way. If you want to add a empty()
method, it should work on the whole tensor. If you want to see if one
coordinate is empty, you can add a more specialized method, like emptySide, or
something similar.

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[Issue 15738] Problem with std.experimental.ndslice empty()

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15738

Илья Ярошенко  changed:

   What|Removed |Added

   Hardware|x86_64  |All
 OS|Windows |All
   Severity|normal  |enhancement

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[Issue 15738] Problem with std.experimental.ndslice empty()

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15738

Илья Ярошенко  changed:

   What|Removed |Added

 CC||ilyayaroshe...@gmail.com

--- Comment #1 from Илья Ярошенко  ---
This is feature, empty is empty!0, so it checks only first dimension. In
addition, this  is very important for optimization reasons. emptyAny method may
be added for desirable behavior.

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