On 18.07.2008, at 19:47, Don Stewart wrote:
sk:
On 17.07.2008, at 21:46, Lennart Augustsson wrote:
If scaleFloat and exponent are implemented with bit twiddling
they can
be quite fast.
is there a way in ghc to 'cast' between float/int32 and double/int64
(without going through memory)?
Yeah,
"fromIntegral/Int->Float" fromIntegral = int2Float
"truncate/Float->Int" truncate = float2Int
"truncate/Double->Int" truncate = double2Int
with appropriate no-op fromIntegrals for the 32 and 64 variants.
i actually meant something like *(uint32_t*)fptr, but thanks anyway ;)
<sk>
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