I think the main problem is that neither of those two numbers can be accurately represented by binary (IEEE) floating points.

For what it's worth, I get the same results as your linux test on my intel macbook, v5.8.9 built for darwin-2level and v5.8.8 built for darwin-thread-multi-2level.

"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re^4: sprintf rounding convention by Joost
in thread sprintf rounding convention by jagaranga

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