Crate normalize_css_z
source ·Expand description
Normalize a CSS z-index to an f32 floating-point number between 0.0 and 1.0. (not quite…)
Theoretically, this is not entirely feasible because we can generate only
2^23 (subnormal) * 127 (normal) = 1065353216 distinct floating-point numbers in this range.
And, the best part is that we only get a handful of precise numbers. Specifically, this crate can generate 67,108,865 unique floating-point numbers between 0.0 and 1.0, which should be more than sufficient for most use cases (hopefully).
Supported ranges of z-indexes
| upper | middle | lower |
| ------------------------ | ----------------------- | -------------------------- |
| [2130706432, 2147483647] | [-16777216, 16777216-1] | [-2147483647, -2130706431] |
Later, I aim to expand this to allow for customizable ranges, but for now, this should be adequate.