Hi all,
in maemo-mapper I have a lot of code involved in doing transformations from
latitude/longitude to Mercator coordinates (used in google maps, for example),
calculation of distances, etc.
I'm trying to use integer arithmetics as much as possible, but sometimes it's a
bit impractical, and I wonder if it's really worth the trouble.
Does one have any figure about how the performance of the FPU is, compared to
integer operations?
A practical question: should I use this way of computing the square root:
http://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Binary_numeral_system_.28base_2.29
(but operating on 32 or even 64 bits), or would I be better using sqrtf() or
sqrt()?
Does anyone know any tricks to optimize certain operations on arrays of data?
Ciao,
Alberto
--
http://www.mardy.it <-- geek in un lingua international!
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