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

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

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;
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

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 Debug for FpCategory`
[src]

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

Formats the value using the given formatter. Read more

`impl Clone for FpCategory`
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`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 Eq for FpCategory`
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`impl PartialEq<FpCategory> for FpCategory`
[src]

`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`
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This method tests for !=.

`impl Copy for FpCategory`
[src]

Auto Trait Implementations

`impl Send for FpCategory`

`impl Sync for FpCategory`

Blanket Implementations

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

`type Error = !`

🔬 This is a nightly-only experimental API. (try_from #33417)

The type returned in the event of a conversion error.

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

🔬 This is a nightly-only experimental API. (try_from #33417)

Performs the conversion.

`impl<T> From for T`
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`fn from(t: T) -> T`
[src]

Performs the conversion.

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

`type Error = >::Error`

🔬 This is a nightly-only experimental API. (try_from #33417)

The type returned in the event of a conversion error.

`fn try_into(self) -> Result<U, >::Error>`
[src]

🔬 This is a nightly-only experimental API. (try_from #33417)

Performs the conversion.

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

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

Performs the conversion.

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

ⓘImportant traits for &'a mut I
Important traits for &'a mut I
`impl<'a, I> Iterator for &'a mut I where I: Iterator + ?Sized, type Item = ::Item;impl<'a, R: Read + ?Sized> Read for &'a mut Rimpl<'a, W: Write + ?Sized> Write for &'a mut W`
`fn borrow(&self) -> &T`
[src]

Immutably borrows from an owned value. Read more

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

ⓘImportant traits for &'a mut I
Important traits for &'a mut I
`impl<'a, I> Iterator for &'a mut I where I: Iterator + ?Sized, type Item = ::Item;impl<'a, R: Read + ?Sized> Read for &'a mut Rimpl<'a, W: Write + ?Sized> Write for &'a mut W`
`fn borrow_mut(&mut self) -> &mut T`
[src]

Mutably borrows from an owned value. Read more

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

`fn get_type_id(&self) -> TypeId`
[src]

🔬 This is a nightly-only experimental API. (get_type_id #27745)

this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

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

`type Owned = T`

`fn to_owned(&self) -> T`
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Creates owned data from borrowed data, usually by cloning. Read more

`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

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

Examples

Variants

Trait Implementations

`impl Debug for FpCategory`
[src]

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

`impl Clone for FpCategory`
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`fn clone(&self) -> FpCategory`
[src]

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

`impl Eq for FpCategory`
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`impl PartialEq<FpCategory> for FpCategory`
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`fn eq(&self, other: &FpCategory) -> bool`
[src]

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

`impl Copy for FpCategory`
[src]

Auto Trait Implementations

`impl Send for FpCategory`

`impl Sync for FpCategory`

Blanket Implementations

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

`type Error = !`

`fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`
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`impl<T> From for T`
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`fn from(t: T) -> T`
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`impl<T, U> TryInto for T where U: TryFrom<T>,`
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`type Error = <U as TryFrom<T>>::Error`

`fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`
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`impl<T, U> Into for T where U: From<T>,`
[src]

`fn into(self) -> U`
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`impl<T> Borrow for T where T: ?Sized,`
[src]

ⓘImportant traits for &'a mut I
Important traits for &'a mut I
`impl<'a, I> Iterator for &'a mut I where I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'a, R: Read + ?Sized> Read for &'a mut Rimpl<'a, W: Write + ?Sized> Write for &'a mut W`
`fn borrow(&self) -> &T`
[src]

Important traits for &'a mut I

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

ⓘImportant traits for &'a mut I
Important traits for &'a mut I
`impl<'a, I> Iterator for &'a mut I where I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'a, R: Read + ?Sized> Read for &'a mut Rimpl<'a, W: Write + ?Sized> Write for &'a mut W`
`fn borrow_mut(&mut self) -> &mut T`
[src]

Important traits for &'a mut I

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

`fn get_type_id(&self) -> TypeId`
[src]

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

`type Owned = T`

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

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

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

Examples

Variants

Trait Implementations

impl Debug for FpCategory[src]

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

impl Clone for FpCategory[src]

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

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

impl Eq for FpCategory[src]

impl PartialEq<FpCategory> for FpCategory[src]

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

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

impl Copy for FpCategory[src]

Auto Trait Implementations

impl Send for FpCategory

impl Sync for FpCategory

Blanket Implementations

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

type Error = !

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

impl<T> From for T[src]

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

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

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

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

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

fn into(self) -> U[src]

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

ⓘImportant traits for &'a mut IImportant traits for &'a mut Iimpl<'a, I> Iterator for &'a mut I where I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'a, R: Read + ?Sized> Read for &'a mut Rimpl<'a, W: Write + ?Sized> Write for &'a mut Wfn borrow(&self) -> &T[src]

Important traits for &'a mut I

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

ⓘImportant traits for &'a mut IImportant traits for &'a mut Iimpl<'a, I> Iterator for &'a mut I where I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'a, R: Read + ?Sized> Read for &'a mut Rimpl<'a, W: Write + ?Sized> Write for &'a mut Wfn borrow_mut(&mut self) -> &mut T[src]

Important traits for &'a mut I

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

fn get_type_id(&self) -> TypeId[src]

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

type Owned = T

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

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

`impl Debug for FpCategory`
[src]

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

`impl Clone for FpCategory`
[src]

`fn clone(&self) -> FpCategory`
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`fn clone_from(&mut self, source: &Self)`
[src]

`impl Eq for FpCategory`
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`impl PartialEq<FpCategory> for FpCategory`
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`fn eq(&self, other: &FpCategory) -> bool`
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`#[must_use] fn ne(&self, other: &Rhs) -> bool`
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`impl Copy for FpCategory`
[src]

`impl Send for FpCategory`

`impl Sync for FpCategory`

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

`type Error = !`

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

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

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

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

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

`fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`
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`impl<T, U> Into for T where U: From<T>,`
[src]

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

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

ⓘImportant traits for &'a mut I
Important traits for &'a mut I
`impl<'a, I> Iterator for &'a mut I where I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'a, R: Read + ?Sized> Read for &'a mut Rimpl<'a, W: Write + ?Sized> Write for &'a mut W`
`fn borrow(&self) -> &T`
[src]

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

ⓘImportant traits for &'a mut I
Important traits for &'a mut I
`impl<'a, I> Iterator for &'a mut I where I: Iterator + ?Sized, type Item = <I as Iterator>::Item;impl<'a, R: Read + ?Sized> Read for &'a mut Rimpl<'a, W: Write + ?Sized> Write for &'a mut W`
`fn borrow_mut(&mut self) -> &mut T`
[src]

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

`fn get_type_id(&self) -> TypeId`
[src]

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

`type Owned = T`

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

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