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; 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);
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
pub fn clone(&self) -> FpCategory
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source. Read more
impl Debug for FpCategory
pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>
Formats the value using the given formatter. Read more
impl PartialEq<FpCategory> for FpCategory
pub fn eq(&self, other: &FpCategory) -> bool
This method tests for self and other values to be equal, and is used by ==. Read more
fn ne(&self, other: &Rhs) -> bool
This method tests for !=.
impl Copy for FpCategory
impl Eq for FpCategory
impl StructuralEq for FpCategory
impl StructuralPartialEq for FpCategory
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> From<T> for T
pub fn from(t: T) -> T
Performs the conversion.
pub fn into(self) -> U
Performs the conversion.
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
toowned_clone_into #41263)recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
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>
Performs the conversion.
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>
Performs the conversion.
© 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/num/enum.FpCategory.html