Struct ordered_float::NotNan

#[repr(transparent)]
pub struct NotNan<T: Float>(_);

A wrapper around Floats providing an implementation of Ord and Hash.

A NaN value cannot be stored in this type.

Methods

impl<T: Float> NotNan<T>

pub fn new(val: T) -> Result<Self, FloatIsNan>

Create a NotNan value.

Returns Err if val is NaN

pub unsafe fn unchecked_new(val: T) -> Self

Create a NotNan value from a value that is guaranteed to not be NaN

Behaviour is undefined if val is NaN

pub fn into_inner(self) -> T

Get the value out.

Trait Implementations

impl<T: Float + Display> Display for NotNan<T>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<T: Debug + Float> Debug for NotNan<T>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<T: PartialEq + Float> PartialEq<NotNan<T>> for NotNan<T>

fn eq(&self, other: &NotNan<T>) -> bool

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

fn ne(&self, other: &NotNan<T>) -> bool

This method tests for !=.

impl<T: Float + PartialEq> Eq for NotNan<T>

impl<T: Float> Ord for NotNan<T>

fn cmp(&self, other: &NotNan<T>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl<T: PartialOrd + Float> PartialOrd<NotNan<T>> for NotNan<T>

fn partial_cmp(&self, other: &NotNan<T>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &NotNan<T>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &NotNan<T>) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &NotNan<T>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &NotNan<T>) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl From<NotNan<f32>> for f32

fn from(value: NotNan<f32>) -> Self

Performs the conversion.

impl From<NotNan<f64>> for f64

fn from(value: NotNan<f64>) -> Self

Performs the conversion.

impl<T: Float> From<T> for NotNan<T>

Creates a NotNan value from a Float.

Panics if the provided value is NaN or the computation results in NaN

fn from(v: T) -> Self

Performs the conversion.

impl<T: Float> Hash for NotNan<T>

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl<T: Copy + Float> Copy for NotNan<T>

impl<T: Float> Add<NotNan<T>> for NotNan<T>

Adds two NotNans.

Panics if the computation results in NaN

type Output = Self

The resulting type after applying the + operator.

fn add(self, other: Self) -> Self

Performs the + operation.

impl<T: Float> Add<T> for NotNan<T>

Adds a float directly.

Panics if the provided value is NaN or the computation results in NaN

type Output = Self

The resulting type after applying the + operator.

fn add(self, other: T) -> Self

Performs the + operation.

impl<T: Float> Sub<NotNan<T>> for NotNan<T>

type Output = Self

The resulting type after applying the - operator.

fn sub(self, other: Self) -> Self

Performs the - operation.

impl<T: Float> Sub<T> for NotNan<T>

Subtracts a float directly.

Panics if the provided value is NaN or the computation results in NaN

type Output = Self

The resulting type after applying the - operator.

fn sub(self, other: T) -> Self

Performs the - operation.

impl<T: Float> Mul<NotNan<T>> for NotNan<T>

type Output = Self

The resulting type after applying the * operator.

fn mul(self, other: Self) -> Self

Performs the * operation.

impl<T: Float> Mul<T> for NotNan<T>

Multiplies a float directly.

Panics if the provided value is NaN or the computation results in NaN

type Output = Self

The resulting type after applying the * operator.

fn mul(self, other: T) -> Self

Performs the * operation.

impl<T: Float> Div<NotNan<T>> for NotNan<T>

type Output = Self

The resulting type after applying the / operator.

fn div(self, other: Self) -> Self

Performs the / operation.

impl<T: Float> Div<T> for NotNan<T>

Divides a float directly.

Panics if the provided value is NaN or the computation results in NaN

type Output = Self

The resulting type after applying the / operator.

fn div(self, other: T) -> Self

Performs the / operation.

impl<T: Float> Rem<NotNan<T>> for NotNan<T>

type Output = Self

The resulting type after applying the % operator.

fn rem(self, other: Self) -> Self

Performs the % operation.

impl<T: Float> Rem<T> for NotNan<T>

Calculates % with a float directly.

Panics if the provided value is NaN or the computation results in NaN

type Output = Self

The resulting type after applying the % operator.

fn rem(self, other: T) -> Self

Performs the % operation.

impl<T: Float> Neg for NotNan<T>

type Output = Self

The resulting type after applying the - operator.

fn neg(self) -> Self

Performs the unary - operation.

impl<T: Float + AddAssign> AddAssign<NotNan<T>> for NotNan<T>

fn add_assign(&mut self, other: Self)

Performs the += operation.

impl<T: Float + AddAssign> AddAssign<T> for NotNan<T>

Adds a float directly.

Panics if the provided value is NaN.

fn add_assign(&mut self, other: T)

Performs the += operation.

impl<T: Float + SubAssign> SubAssign<NotNan<T>> for NotNan<T>

fn sub_assign(&mut self, other: Self)

Performs the -= operation.

impl<T: Float + SubAssign> SubAssign<T> for NotNan<T>

Subtracts a float directly.

Panics if the provided value is NaN or the computation results in NaN

fn sub_assign(&mut self, other: T)

Performs the -= operation.

impl<T: Float + MulAssign> MulAssign<NotNan<T>> for NotNan<T>

fn mul_assign(&mut self, other: Self)

Performs the *= operation.

impl<T: Float + MulAssign> MulAssign<T> for NotNan<T>

Multiplies a float directly.

Panics if the provided value is NaN.

fn mul_assign(&mut self, other: T)

Performs the *= operation.

impl<T: Float + DivAssign> DivAssign<NotNan<T>> for NotNan<T>

fn div_assign(&mut self, other: Self)

Performs the /= operation.

impl<T: Float + DivAssign> DivAssign<T> for NotNan<T>

Divides a float directly.

Panics if the provided value is NaN or the computation results in NaN

fn div_assign(&mut self, other: T)

Performs the /= operation.

impl<T: Float + RemAssign> RemAssign<NotNan<T>> for NotNan<T>

fn rem_assign(&mut self, other: Self)

Performs the %= operation.

impl<T: Float + RemAssign> RemAssign<T> for NotNan<T>

Calculates %= with a float directly.

Panics if the provided value is NaN or the computation results in NaN

fn rem_assign(&mut self, other: T)

Performs the %= operation.

impl<T: Float> Deref for NotNan<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T: Float + FromStr> FromStr for NotNan<T>

type Err = ParseNotNanError<T::Err>

The associated error which can be returned from parsing.

fn from_str(src: &str) -> Result<Self, Self::Err>

Convert a &str to NotNan. Returns an error if the string fails to parse, or if the resulting value is NaN

use ordered_float::NotNan;

assert!("-10".parse::<NotNan<f32>>().is_ok());
assert!("abc".parse::<NotNan<f32>>().is_err());
assert!("NaN".parse::<NotNan<f32>>().is_err());

impl<T: Clone + Float> Clone for NotNan<T>

fn clone(&self) -> NotNan<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Default + Float> Default for NotNan<T>

fn default() -> NotNan<T>

Returns the "default value" for a type.

impl<T: Float> AsRef<T> for NotNan<T>

fn as_ref(&self) -> &T

Performs the conversion.

impl<T: Float> Bounded for NotNan<T>

fn min_value() -> Self

returns the smallest finite number this type can represent

fn max_value() -> Self

returns the largest finite number this type can represent

impl<T: Float> ToPrimitive for NotNan<T>

fn to_i64(&self) -> Option<i64>

Converts the value of self to an i64.

fn to_u64(&self) -> Option<u64>

Converts the value of self to an u64.

fn to_isize(&self) -> Option<isize>

Converts the value of self to an isize.

fn to_i8(&self) -> Option<i8>

Converts the value of self to an i8.

fn to_i16(&self) -> Option<i16>

Converts the value of self to an i16.

fn to_i32(&self) -> Option<i32>

Converts the value of self to an i32.

fn to_usize(&self) -> Option<usize>

Converts the value of self to a usize.

fn to_u8(&self) -> Option<u8>

Converts the value of self to an u8.

fn to_u16(&self) -> Option<u16>

Converts the value of self to an u16.

fn to_u32(&self) -> Option<u32>

Converts the value of self to an u32.

fn to_f32(&self) -> Option<f32>

Converts the value of self to an f32.

fn to_f64(&self) -> Option<f64>

Converts the value of self to an f64.

fn to_i128(&self) -> Option<i128>

Converts the value of self to an i128.

fn to_u128(&self) -> Option<u128>

Converts the value of self to an u128.

impl<T: Float + FromPrimitive> FromPrimitive for NotNan<T>

fn from_i64(n: i64) -> Option<Self>

Convert an i64 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_u64(n: u64) -> Option<Self>

Convert an u64 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_isize(n: isize) -> Option<Self>

Convert an isize to return an optional value of this type. If the value cannot be represented by this value, then None is returned.

fn from_i8(n: i8) -> Option<Self>

Convert an i8 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_i16(n: i16) -> Option<Self>

Convert an i16 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_i32(n: i32) -> Option<Self>

Convert an i32 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_usize(n: usize) -> Option<Self>

Convert a usize to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_u8(n: u8) -> Option<Self>

Convert an u8 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_u16(n: u16) -> Option<Self>

Convert an u16 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_u32(n: u32) -> Option<Self>

Convert an u32 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_f32(n: f32) -> Option<Self>

Convert a f32 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_f64(n: f64) -> Option<Self>

Convert a f64 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_i128(n: i128) -> Option<Self>

Convert an i128 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

fn from_u128(n: u128) -> Option<Self>

Convert an u128 to return an optional value of this type. If the type cannot be represented by this value, then None is returned.

impl<T: Float> NumCast for NotNan<T>

fn from<F: ToPrimitive>(n: F) -> Option<Self>

Creates a number from another value that can be converted into a primitive via the ToPrimitive trait.

impl<T: Float> Num for NotNan<T>

type FromStrRadixErr = ParseNotNanError<T::FromStrRadixErr>

fn from_str_radix(src: &str, radix: u32) -> Result<Self, Self::FromStrRadixErr>

Convert from a string and radix <= 36.

impl<T: Float> Zero for NotNan<T>

fn zero() -> Self

Returns the additive identity element of Self, 0.

fn is_zero(&self) -> bool

Returns true if self is equal to the additive identity.

impl<T: Float> One for NotNan<T>

fn one() -> Self

Returns the multiplicative identity element of Self, 1.

fn is_one(&self) -> bool where
    Self: PartialEq<Self>, 

Returns true if self is equal to the multiplicative identity.

impl<T: Float + Signed> Signed for NotNan<T>

fn abs(&self) -> Self

Computes the absolute value.

fn abs_sub(&self, other: &Self) -> Self

The positive difference of two numbers.

fn signum(&self) -> Self

Returns the sign of the number.

fn is_positive(&self) -> bool

Returns true if the number is positive and false if the number is zero or negative.

fn is_negative(&self) -> bool

Returns true if the number is negative and false if the number is zero or positive.