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Such as? Reading up on the format [1] it seems that every value is defined, which includes a ton of possible NaN values [2]. [1] https://en.wikipedia.org/wiki

by spc476 9y ago

Such as? Reading up on the format [1] it seems that every value is defined, which includes a ton of possible NaN values [2]. [1] https://en.wikipedia.org/wiki/Double-precision_floating-point_format https://en.wikipedia.org/wiki/Double-precision_floating-poin... [2] If you read the actual IEEE 754 spec, one suggested use for a NaN value is the address of the offending instruction(s); otherwise there is no defined pattern for NaNs in IEEE-754.

jnordwick 9y ago
> it seems that every value is defined, > there is no defined pattern for NaNs ? I was referring to using a NaN value without a zeroed mantissa.
- spc476 9y ago
  ? A NaN is defined as the maximum exponent (all ones) and a non-zero mantissa. By "no defined pattern for NaNs" I meant there was no fixed value for a single NaN.