Constant NEG_INFINITY 

pub const NEG_INFINITY: f32 = f32::NEG_INFINITY; // -Inf_f32

👎Deprecating in a future version:

replaced by the NEG_INFINITY associated constant on f32

Negative infinity (−∞). Use f32::NEG_INFINITY instead.

Examples

// deprecated way
let ninf = std::f32::NEG_INFINITY;

// intended way
let ninf = f32::NEG_INFINITY;