(j3.2006) More on "contiguous"

[Aleksandar Donev]

Hi,

OK, Bob Corbett already said this, but I typed it before getting his 
message :-)

> Does "contiguous" make any sense and confer any benefit for other than
> the first dimension?
Of course it makes sense. And yes, it confers some benefits. For example,

array=1.0

would not generate any loops and run at memory bandwidth speed.

Other benefits include making such arrays "interoperable" since one can take 
C_LOC of them.

On Tuesday 15 May 2007 14:59, Bill Long wrote:
> know that the leftmost dimension of the array D is contiguous, but other
> dimensions might not qualify, then you could associate a contiguous
> pointer with D(:,i) and reference the pointer.
We killed that horse. One can only point contiguous pointers to "simply 
contiguous" targets, which D(:,i) is not unless D is known to be a contiguous 
array at compile-time.

We should certainly not change anything about contiguous at this point in 
time. There are better ways to convey contiguity/small dimensionality/fixed 
dimensionality for specific dimensions than the attribute. In fact, the whole 
attribute looks not so well-designed now...

Best,
Aleks