Consider changing flag behaviour on NaN propagation.

Open mdickinson opened this issue 11 years ago • 1 comments

MPFR sets the nan flag even when propagating NaNs; this behaviour is different from the IEEE 754 specification, where propagating NaNs doesn't set the NaN flag. We should consider changing the behaviour for BigFloat.

Aug 02 '14 10:08 mdickinson

Just an update from gmpy2 - I'm experimenting with a context flag called quiet_nan. If True, propagating NaN does not set the NaN flag. If False, the behavior of the MPFR library is maintained. I'm undecided on the default.

Nov 11 '15 02:11 casevh