Enum std::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

impl Clone for FpCategory[src]

pub fn clone(&self) -> FpCategory[src]

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

impl Debug for FpCategory[src]

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>[src]

Formats the value using the given formatter. Read more

impl PartialEq<FpCategory> for FpCategory[src]

pub fn eq(&self, other: &FpCategory) -> bool[src]

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

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

This method tests for !=.

impl Copy for FpCategory[src]

impl Eq for FpCategory[src]

impl StructuralEq for FpCategory[src]

impl StructuralPartialEq for FpCategory[src]

Auto Trait Implementations

impl RefUnwindSafe for FpCategory

impl Send for FpCategory

impl Sync for FpCategory

impl Unpin for FpCategory

impl UnwindSafe for FpCategory

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

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

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T> ToOwned for T where
    T: Clone, [src]

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T[src]

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)[src]

🔬 This is a nightly-only experimental API. (toowned_clone_into #41263)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

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

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.