Andrew Coppin <[EMAIL PROTECTED]> writes: > Jon Fairbairn wrote: > > "David House" <[EMAIL PROTECTED]> writes: > > > > > >> On 31/05/07, Andrew Coppin <[EMAIL PROTECTED]> wrote: > >> > >>> If you're bored... can you come up with a solution to this? > >>> > >> Try using floatToDigits: > >> http://haskell.org/ghc/docs/latest/html/libraries/base/Numeric.html#v%3AfloatToDigits > >> > >> "floatToDigits takes a base and a non-negative RealFloat number, and > >> returns a list of digits and an exponent." > >> > > > > I think you also need floatRadix and floatDigits. > > > > Note that the challenge asks for the "internal" bitmap > representation of an IEEE double-precision integer - not the > mathematical binary expansion.
Hence my remark above. > (In particular, things like Infinity and NaN have special > bit sequences.) > > Did I mention that this is a silly challange yet? Yes, but you didn't say that it's not only silly but demonstrates the opposite of expressiveness as it's all about breaking an abstraction and must be non-portable code (because it's definition is that it won't give the same results on different hardware), so such code should be *hard* to write in a good language. -- Jón Fairbairn [EMAIL PROTECTED] http://www.chaos.org.uk/~jf/Stuff-I-dont-want.html (updated 2007-05-07) _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
