[Haskell-cafe] Binary constants in Haskell

Neil Mitchell ndmitchell at gmail.com
Wed Oct 24 16:18:29 EDT 2007


> > Are there binary constants in Haskell, as
> > we have, for instance, 0o232 for octal and
> > 0xD29A for hexadecimal?
> No, though it is an interesting idea.

You can get pretty close with existing Haskell though:

(bin 100010011)

where bin :: Integer -> Integer, and is left as an exercise for the
reader. Obviously its not as high performance, as proper binary
literals, but if you write them as top-level constants, they'll only
be computed once and shouldn't end up being in the performance
critical bits.



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