4 ms·

Isn't that true for all correct implementations of negative zero? It's still a neutral for addition

• worc3131 6y ago
  Not quite neutral. You return -0.0 only when needed. >>> 0.0+0.0 0.0 >>> 0.0+(-0.0) 0.0 >>> (-0.0)+0.0 0.0 >>> (-0.0)+(-0.0) -0.0
  • thaumasiotes 6y ago
    > Not quite neutral. Hmm? Your examples show -0.0 being additively neutral in every case. +0.0 is the one that behaves weirdly.
  • shultays 6y ago
    heh, looks like abs(-0.0) is slightly less than abs(+0.0)!