module ArrayAux:sig..end
val int_blit : int array -> int -> int array -> int -> int -> unitArray.blit for int arrays. 
 (Performance reasons.)val int_series : int array -> int -> int array -> int -> int -> int -> unitint_series src srcpos dst dstpos len n:
 Computes for every i, 0 <= i < len:
 dst.(dstpos+i) = n + SUM(j=0..(i-1): src.(srcpos+j)) 
 It is expected that src == dst implies srcpos >= dstpos.
