Accumulator factory: Difference between revisions

=={{header|Lambdatalk}}==

Lambdatlk is a functional programming language without closures but with mutable arrays.

<lang scheme>

{def acc

{def acc.mem {A.new 0}}

{lambda {:n}

{+ {A.toS {A.addlast! :n {acc.mem}}}}} }

-> acc

{acc 1} -> 1

{acc 5} -> 6

{acc 2.3} -> 8.3

</lang>