GHC and GSL
Edward Z. Yang
ezyang at MIT.EDU
Mon Jul 22 18:27:23 CEST 2013
Usually, a bus error is similar to a segmentation fault, in that it
indicates something has gone terribly wrong. However, as hmatrix
is an API to some foreign C libraries, I would not rule out the possibility
that it's a bug in the library itself.
What version of hmatrix do you have, and if you compile the program
with -debug and run it in gdb, do you get a backtrace?
Excerpts from Adrian Victor Crisciu's message of Mon Jul 22 06:38:46 -0700 2013:
> I need to import in one of my programs the minimization module form
> Numeric.GSL.Minimization. When I run even the example code in interactive
> mode, ghci crashes with a "Bus error" message. Is this a bug, or is
> something wrong with my code?
> The offending program follows:
> module MinMaxTest where
> import Numeric.GSL.Minimization
> objFunc :: [Double] -> Double
> objFunc [x, y] = 10 * (x-1)^2 + 20 * (y-2)^2 + 30
> main :: IO ()
> main = do
> let (s, p) = minimize NMSimplex2 1e-2 30 [1, 1] objFunc [5, 7]
> print s
> print p
> I use ghc-7.6.3 on a Slackware-Linux platform.
> Can anyone help?
> Thank you in advance.
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