Re: Speed/safety trade-offs and types vs. system classes

On Feb 20, 11:28 am, p...@xxxxxxxxxxxxxxxxx (Pascal J. Bourguignon)
wrote:

There are chances that on an implementation running on a 32-bit
computer, (make-array dimensions :element-type '(unsigned-byte 32)
:initial-element 0) be optimized to use one 32-bit word per array
slot.  But this doesn't matter at all.  What matter, is that your
array will work on any CL implementation, be it running on a 17-bit
eletronic computer, or on banana skins.

--
__Pascal Bourguignon__

Well, I depend on this feature, mostly developing my code on CLISP for
cross-platform development between Linux and Windows, and then testing
my code (with possible optimisations) on SBCL and ECL.

Bu this is the real beauty of CL : that I can effectively develop
something working without regards to data types, but that I can
afterward compile it with SBCL for almost free 10-fold performance (if
one doesn't mind the memory that SBCL takes up in contrast with
CLISP).

Regards,

Jurgen
.

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