On Monday 19 December 2005 11:26, Wolfgang Jeltsch wrote:
Am Montag, 19. Dezember 2005 01:10 schrieb Jared Updike:
Int is for bounded values -2**32 to 2**32 (I think... maybe 2**-31 and 2**31 or less if it's boxed?) based on the underlying machine representation.
Not really true. As far as I remember, the Haskell Report just says that Int covers at least the integers from -2^27 to 2^27 - 1. The range for Int can be higher than the range just given. For 32-bit machines it will probably be -2^31 to 2^31 - 1 but there's no guarantee for that.
http://www.haskell.org/onlinelibrary/basic.html 6.4 Numbers ... The finite-precision integer type Int covers at least the range [ - 2^29, 2^29 - 1]. As Int is an instance of the Bounded class, maxBound and minBound can be used to determine the exact Int range defined by an implementation. ... Ben