Re: Multiprecisions numbers

[Gautier <gautier.demontmollin@maths.unine.ch>]

Pascal Obry:

> Do you have some benchmarks about the relative speed of these
> implementations ?

This would be very interesting (not time and equipment myself now)
E.g. GMP and other known packages, being in C, must allocate, reallocate,
deallocate memory for multi-integer. It consume time and the memory
gets fragmented very fast, requiring garbage collection that can take
longer than the computing itself. Reversely, pure Ada methods where functions
can return a whole unconstrained array, can work only on stack with
local variables. Anyway, using the "procedure with out parameter" variants
give very quick results on OpenVMS (Compaq Ada V3.5-2) and PC (GNAT/DOS).
No comparisons though from my side.

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Gautier  --  http://members.xoom.com/gdemont/