Enum core::num::FpCategory1.0.0[][src]

pub enum FpCategory {
    Nan,
    Infinite,
    Zero,
    Subnormal,
    Normal,
}
Expand description

A classification of floating point numbers.

This enum is used as the return type for f32::classify and f64::classify. See their documentation for more.

Examples

use std::num::FpCategory;

let num = 12.4_f32;
let inf = f32::INFINITY;
let zero = 0f32;
let sub: f32 = 1.1754942e-38;
let nan = f32::NAN;

assert_eq!(num.classify(), FpCategory::Normal);
assert_eq!(inf.classify(), FpCategory::Infinite);
assert_eq!(zero.classify(), FpCategory::Zero);
assert_eq!(nan.classify(), FpCategory::Nan);
assert_eq!(sub.classify(), FpCategory::Subnormal);
Run

Variants

Nan

“Not a Number”, often obtained by dividing by zero.

Infinite

Positive or negative infinity.

Zero

Positive or negative zero.

Subnormal

De-normalized floating point representation (less precise than Normal).

Normal

A regular floating point number.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.