[mercury-users] The Logic of Mercury

Lee Naish lee at cs.mu.OZ.AU
Thu Sep 9 17:15:09 AEST 1999

In message <199909080908.TAA13452 at beddoe.cs.monash.edu.au>you write:
>>> What percentage of the higher order code you have written uses data
>>> structures containing higher order objects?
>All HAL constraint solvers which support delay are written using a data
>structure which contains high order (goals to be executed whenver the delay
>condition is met). The structure usually relates, among other things, the
>delayed goals to the solver variables they are waiting for.

I suspect you might be using call/1, in which case its not an issue for
call/N versus apply/3 (like the lazy evaluation trf).  Is that the case?

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