1.0.0[][src]Enum std::num::FpCategory

pub enum FpCategory {

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.


use std::num::FpCategory;
use std::f32;

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



"Not a Number", often obtained by dividing by zero.


Positive or negative infinity.


Positive or negative zero.


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


A regular floating point number.

Trait Implementations

impl Clone for FpCategory[src]

fn clone_from(&mut self, source: &Self)[src]

Performs copy-assignment from source. Read more

impl Copy for FpCategory[src]

impl Eq for FpCategory[src]

impl PartialEq<FpCategory> for FpCategory[src]

#[must_use] fn ne(&self, other: &Rhs) -> bool[src]

This method tests for !=.

impl Debug for FpCategory[src]

Auto Trait Implementations

impl UnwindSafe for FpCategory

impl RefUnwindSafe for FpCategory

impl Unpin for FpCategory

impl Sync for FpCategory

impl Send for FpCategory

Blanket Implementations

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> Into<U> for T where
    U: From<T>, 

impl<T> From<T> for T[src]

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> Borrow<T> for T where
    T: ?Sized

impl<T> BorrowMut<T> for T where
    T: ?Sized

impl<T> Any for T where
    T: 'static + ?Sized

impl<T> ToOwned for T where
    T: Clone

type Owned = T

The resulting type after obtaining ownership.