Vector Handling Functions

5.5 Vector Handling Functions

TBoS p.85-95, SD

Pattern-matchng over vectors works when the vector is fully populated. Trying to access an element in an index which has not been assigned a value raises an error. Note vector destructuring in this way is slow and the facility is not often used.

This example non-destructively double every element in a vector.

(0-) (define vector-double
   <> -> <>
   (@v X V) -> (@v (+ X X) (vector-double V)))
(fn vector-double)

(1-) (vector-double (@v 1 2 3 <>))
<2 4 6>

4. The Core Language

4.6 Sequences

5 Defining Functions

6. Packages

7. Shen-YACC

8. Shen Prolog

9. Types

10 Sequent Calculus

10.2 Exotic Types