If you're importing the module as
import qualified Math.FFT as FFT
Shouldn't "Math.FFT" become "FFT"? :)
On Tue, May 17, 2011 at 8:44 PM,
for example:
I will ask the glorious compiler, and it says:
*Main> :t calcFFT calcFFT :: (Math.FFT.Base.FFTWReal r) => V.Vector (Complex r) -> V.Vector (Complex r)
I then put the signature in my code, reload it, and:
Not in scope: type constructor or class `Math.FFT.Base.FFTWReal'
It seems very strange to me that the fully qualified module name doesn't work, nor does any combination thereof, e.g. FFT.FFTWReal, FFT.Base.FFTWReal, etc...
I'm importing FFT as:
import qualified Math.FFT as FFT
I'm not sure if that causes the problem.
Generally speaking this happens to me quite a lot, and I've never tried to understand what's going on, because the signature is not required. I've decided to try now :-)
Obviously I'll need some help.
Thanks,
Brian
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-- -- Regards, KC