Array representation in scheme

Question

Hi

I am a newbie to the realm of functional programming and have just started learning Scheme (though it is a semi-functional programming language). I did some tutorials on lists which is well supported in Scheme. I was wondering whether Scheme has support for fiddling with arrays ?

Or do I need to define my own data type ? Lists are an inductively defined data types. If I'm to define arrays as a new data type then can it be defined inductively ?

Please help. Thanks in advance.

cheers

Answer 1

You're looking for vector.

(define arr (vector 1 2 3))
(define arr #(1 2 3))

Answer 2

Arrays are not very "functional". That's why they are not as important as lists in a functional language like Scheme.

I don't think you can define arrays inductively.

Answer 3

Hi,

you can represent arrays using vectors. The vectors in Scheme are not functional in the sense that you can mutate them (using vector-set!). However, also lists can be mutated using set-car! and set-cdr!.