Array start index

WhatMeForget via Digitalmars-d-learn digitalmars-d-learn at puremagic.com
Mon Feb 6 22:17:27 PST 2017


On Saturday, 1 August 2015 at 09:35:53 UTC, DLearner wrote:
> Does the D language set in stone that the first element of an 
> array _has_ to be index zero?
> Wouldn't starting array elements at one avoid the common 
> 'off-by-one' logic error, it does
> seem more natural to begin a count at 1.
>
> Actually, maybe even better to allow array definitions of form
> int foo[x:y];
> (y >= x) creating integer variables foo[x], foo[x+1],...,foo[y].
>
> I think the (very old) IBM PL/I language was like this.

There is a good metaphor in multi-story buildings. Americans 
number the first or ground floor of a high rise as floor #1.  In 
the UK, their first floor is what Americans would call the 2nd 
floor.

But then how can you trust a group of people who drive on the 
wrong side of the road :)






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