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Fortran has the rather unusual feature that you can change the indexing to an arbitrary offset. You can declare arrays to be indexed from 0 if you want, but it

by gh02t 10y ago

Fortran has the rather unusual feature that you can change the indexing to an arbitrary offset. You can declare arrays to be indexed from 0 if you want, but it defaults to 1 and almost nobody uses this feature for obvious reasons.

jimktrains2 10y ago
BASIC did as well IIRC.
- gh02t 10y ago
  Pascal as well I think. I dunno which was the first to support it, but it's not exactly a popular thing in modern programming.
  - int_19h 10y ago
    It was already there in Algol-60.
  - FreeFull 10y ago
    Pascal even let you index with non-numeric types, so you could have an array indexed by the characters a to z, for example.
Extigy 10y ago
I index from -N:N so that 0 is in the centre of my computational boxes.
- gh02t 10y ago
  Yeah, something like this is the intended use, but it isn't used much at least in the Fortran I've seen. Mostly because it's really confusing for someone reading your code, as once the array is declared there's no indication what the index range is.