Introduction to Concurrency in Programming Languages

154 Introduction to Concurrency in Programming Languages

for i=1 to n

C(i) = A(i) + B(i)

end

If the arrays didn’t all have the same shape, the common loop bounds

assumed by the limits of the loop iterate i couldn’t be applied to all of the

arrays. Applying this loop to arrays with incompatible shapes would likely

result in an out-of-bounds error.

It is important to note that there is no implied order to the evaluation

of the operations on array elements with array notation. Thus there are no

loop iteration dependencies and the equivalent implementation using explicit

loops, shown above, could just as well have run backwards; the results would

be the same. ...