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Constant std::f64::MIN
pub const MIN: f64 = f64::MIN; // -1.7976931348623157E+308f64👎Deprecating in a future Rust version: replaced by the 
  MIN associated constant on f64
   Smallest finite f64 value. Use f64::MIN instead.
Examples
// deprecated way
let min = std::f64::MIN;
// intended way
let min = f64::MIN;© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
 https://doc.rust-lang.org/std/f64/constant.MIN.html