[Python-Dev] Mixing float and Decimal -- thread reboot (original) (raw)

Greg Ewing greg.ewing at canterbury.ac.nz
Sun Mar 21 23:41:49 CET 2010

Raymond Hettinger wrote:

Remember, the notion of inexactness is a taint, not an intrinsic property of a type. Even the Scheme numeric tower recognizes this. LIkewise, the decimal specification also spells-out this notion as basic to its design.

I'm not sure it really does, otherwise every decimal value would have a flag indicating whether it was tainted with inexactness, and this flag would propagate through calculations.

-- Greg

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