Is `[<var> in <distributed variable>]` equivalent to `forall`?
I noticed something in a snippet of code I was given: var D: domain(2) dmapped Block(boundingBox=Space) = Space; var A: [D] int; [a in A] a = a.locale.id; Is [a in A] equivalent to forall a in A a = a.locale.id ? Brad Yes, exactly. In Chapel, [a in A] expr is equivalent to forall a in A do expr . With respect to the title of this question, note that this is independent of whether or not A is distributed. For example, you could also write [i in 1..n] rather than forall i in 1..n do . Array types in Chapel, like [D] real can similarly be read as "for all indices in D , allocate an element of