Strictness of addition functions.

Sean Seefried Sean Seefried" <
Fri, 15 Mar 2002 13:37:20 +1000

Lately, I've been attempting to improve the performance of a highly
numerically intensive program.
Yet try as I might I cannot seem to define (nor find) an addition function
that is strict in both its arguments.

Using the advice found in the GHC Users Guide I have looked inside the .hi
file and discovered that the functions I define are indeed lazy in their

Even when I try something like

data Pair = Pair !Int# !Int#

f (Pair x y) = x +# y

I still discovered to my dismay that the type of the first argument to f is

What can I do to force the arguments to be strict?

Sean Seefried
School of ITEE
The University of Queensland
Ph: 3365 8301
Mob: 0416 338 636