Check size of arrays being assigned

[ViralBShah]

This seems like some sort of bug
indexing five elements on the left, six on the right

julia> A
5x5 Int64 Array:
 1   6  11  16  21
 2   7  12  17  22
 3   8  13  18  23
 4   9  14  19  24
 5  10  15  20  25

julia> A[1:5]=2:7
2:7

julia> A
5x5 Int64 Array:
 2   6  11  16  21
 3   7  12  17  22
 4   8  13  18  23
 5   9  14  19  24
 6  10  15  20  25

[ViralBShah]

cc: @alanedelman

[JeffBezanson]

Could be considered a bug, or could just be defined to take the necessary number of elements from an iterable. The right side could even be an infinite vector.

[ViralBShah]

What happens in multi-dimensional arrays if there is a size mismatch?

-viral

On 04-Jun-2012, at 7:14 AM, Jeff Bezanson wrote:

Could be considered a bug, or could just be defined to take the necessary number of elements from an iterable. The right side could even be an infinite vector.

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#911 (comment)

[StefanKarpinski]

I really think this should be an error.

[StefanKarpinski]

If taking a few elements from a bigger structure is intended, it's worth slicing on the right too.

[JeffBezanson]

In the middle of fixing this. I encountered the following use case in the tests:

true_fftd3_m3d[:,:,1] = 17:2:45

If the RHS is 1d, should we just check the element count?

[timholy]

I like this solution. Could this be closed?