Check if array data increment by one?

Seems simple, but god, I've either got a mental block, or I'm just getting thick in my old age (Probably the latter), but how the hell do you check whether the integer data in an array increments by one e.g.

anArray = {4,3,7,3,4,5,6,2,7,9,10}

Though, in the example, there are two sections that increment by one, the one I need is the longest which is in bold!

I've been on ages trying to figure this out, but somethings not clicking, any ideas?

Thanks in advance

Dabz

convert the array to deltas and check for +1 values?

Or just add a dimension to your existing array to keep track of deltas, that way you can compare array values for "longest" values and deltas.

Gotcha fellas, I've had a bit of a think today, and I think I've got a good idea, usually the case! :)

Dabz