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Postings from May 2005
On Mon, May 23, 2005 at 08:54:19PM +0000, mark.a.biggar@comcast.net wrote: : : There are actuall two usefull definition for %. The first which Ada calls 'mod' always returns a value 0<=X<N and yes it has no working value that is an identity. The other which Ada calls 'rem' defined as follows: : : Signed integer division and remainder are defined by the relation: : : A = (A/B)*B + (A rem B) : : where (A rem B) has the sign of A and an absolute value less than the absolute value of B. Signed integer division satisfies the identity: : : (-A)/B = -(A/B) = A/(-B) : : It does have a right side identity of +INF. I think % should behave as Perl 5 has it, especially insofar as it coerces to integer. That doesn't mean we can't have "mod" and/or "rem" variants that have other semantics. Infix operators are pretty much in their own namespace anyway, so they won't clobber sub names. LarryThread Previous | Thread Next