Re: Creating and using arrays - again

Jerry Avins wrote:
> Duke Normandin wrote:
>> On Sat, 22 Mar 2008, Jerry Avins wrote:
>>
>>>
>>> Duke Normandin wrote:
>>>> On Fri, 21 Mar 2008, Jonah Thomas wrote:
>>>   ...
>>>
>>>>> You might at some point want to have some sort of overflow warning.
If
>>>>> you do
>>>>>
>>>>> 13 ages{ 100 } !
>>>> Good point! If I use a constant to define the array size like
Elizabeth
>>>> suggests, then I should be able to figure out a way to check for an
>>>> "out-of-bounds" index.
>>> You can do that even if you use a number rather than a named 
>>> constant. The
>>> number could be kept in an extension of the array and compared at 
>>> access time
>>> with the requested index. You can do that using DOES>.
>>>
>>> Jerry
>>
>> What do you by "an extension of the array" ? Thanks for the clues!
> 
> ALLOT space not only for the array elements, but also for the array 
> size. (You can even ALLOT space for the number of array dimensions and 

> the size of each.) I think you'll find that a two-dimentional bounds 
                                        ^
> checking array can be fun to write, once you get that far.)
> 
> Jerry


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