Right you are about the __float128 case. After rewriting the constant as (__float128)1000001 / 1e6, my result now matches your calculation.

I'm inclined to think the bc-calculated value is accurate. But verifying that is rather laborious, for 1000001**6e7 is a number with ca 360M decimal digits.

In reply to Re^4: Decimal Floating Point (DFP) and does Perl needs DFP? by Anonymous Monk
in thread Decimal Floating Point (DFP) and does Perl needs DFP? by flexvault

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