Re: Creating and using arrays - again

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 fine that a two-dimentional bounds 
checking array can be fun to write, once you get that far.)

Jerry
-- 
Engineering is the art of making what you want from things you can get.
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