### constants

#### How do I discover the lowest negative possible CGFloat?

I know of these values: CGFloat.infinity, which is greater than CGFloat.greatestFiniteMagnitude, which is greater than CGFloat.leastNormalMagnitude, which is greater than CGFloat.leastNonzeroMagnitude, which is greater than 0 but it stops there... as far as I can tell. Where are the negative values? I imagine maybe it's as easy as placing a - before them, but then I worry that there might be strange exceptions. How do I find the key negative numbers in CGFloat? Critically, the lowest negative non-infinite number.

Floating point numbers have a sign bit and negating them changes this sign bit to the opposite value (there is actually a negative zero). Just put a minus before them. The negation is well defined.

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