Re: Arrays, slices, case, and ‘in’ strategies

["Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org>]

On 12/30/2017 01:51 AM, Mace Ayres wrote:
> 
> I know I could create some triad types of arrays, but I am wondering if I can slice the array grid into 9 collections and then check
> loop.. if numb (proposed number) already exists in the triad [this would be determined by row, column in parameters) OR also, the cell/record has a field with its triad,
> a constant property.

You could create a function:

function Block (Row : Row_Number; Column : Column_Number)
return Block_Number;

or a map:

type Block_Map is array (Row_Number, Column_Number)
of Block_Number;

Block : constant Block_Map := ...;

both of which would be used as

Block (Row, Column)

-- 
Jeff Carter
"C's solution to this [variable-sized array parameters] has real
problems, and people who are complaining about safety definitely
have a point."
Dennis Ritchie
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