Struct parse_mediawiki_sql::field_types::NotNan

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

The type used for float fields that are never NaN. A wrapper around Floats providing an implementation of Ord and Hash.

A NaN value cannot be stored in this type.

Implementations

impl<T> NotNan<T>

The type used for float fields that are never NaN.

pub const unsafe fn unchecked_new(val: T) -> NotNan<T>

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

Safety

Behaviour is undefined if val is NaN

impl<T> NotNan<T> where
    T: Float, 

The type used for float fields that are never NaN.

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

Create a NotNan value.

Returns Err if val is NaN

pub fn into_inner(self) -> T

Get the value out.

Trait Implementations

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

Adds two NotNans.

Panics if the computation results in NaN

type Output = NotNan<T>

The resulting type after applying the + operator.

pub fn add(self, other: NotNan<T>) -> NotNan<T>

Performs the + operation.

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

Adds a float directly.

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

type Output = NotNan<T>

The resulting type after applying the + operator.

pub fn add(self, other: T) -> NotNan<T>

Performs the + operation.

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

pub fn add_assign(&mut self, other: NotNan<T>)

Performs the += operation.

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

Adds a float directly.

Panics if the provided value is NaN.

pub fn add_assign(&mut self, other: T)

Performs the += operation.

impl<T> AsRef<T> for NotNan<T> where
    T: Float, 

pub fn as_ref(&self) -> &T

Performs the conversion.

impl<T> Bounded for NotNan<T> where
    T: Float, 

pub fn min_value() -> NotNan<T>

returns the smallest finite number this type can represent

pub fn max_value() -> NotNan<T>

returns the largest finite number this type can represent

impl<T> Clone for NotNan<T> where
    T: Clone, 

pub 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> Debug for NotNan<T> where
    T: Debug, 

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

Formats the value using the given formatter.

impl<T> Default for NotNan<T> where
    T: Default, 

pub fn default() -> NotNan<T>

Returns the “default value” for a type.

impl<T> Deref for NotNan<T> where
    T: Float, 

type Target = T

The resulting type after dereferencing.

pub fn deref(&self) -> &<NotNan<T> as Deref>::Target

Dereferences the value.

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

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

Formats the value using the given formatter.

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

type Output = NotNan<T>

The resulting type after applying the / operator.

pub fn div(self, other: NotNan<T>) -> NotNan<T>

Performs the / operation.

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

Divides a float directly.

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

type Output = NotNan<T>

The resulting type after applying the / operator.

pub fn div(self, other: T) -> NotNan<T>

Performs the / operation.

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

pub fn div_assign(&mut self, other: NotNan<T>)

Performs the /= operation.

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

Divides a float directly.

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

pub fn div_assign(&mut self, other: T)

Performs the /= operation.

impl From<NotNan<f32>> for NotNan<f64>

pub fn from(v: NotNan<f32>) -> NotNan<f64>

Performs the conversion.

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

pub fn from_i64(n: i64) -> Option<NotNan<T>>

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

pub fn from_u64(n: u64) -> Option<NotNan<T>>

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

pub fn from_isize(n: isize) -> Option<NotNan<T>>

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

pub fn from_i8(n: i8) -> Option<NotNan<T>>

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

pub fn from_i16(n: i16) -> Option<NotNan<T>>

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

pub fn from_i32(n: i32) -> Option<NotNan<T>>

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

pub fn from_usize(n: usize) -> Option<NotNan<T>>

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

pub fn from_u8(n: u8) -> Option<NotNan<T>>

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

pub fn from_u16(n: u16) -> Option<NotNan<T>>

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

pub fn from_u32(n: u32) -> Option<NotNan<T>>

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

pub fn from_f32(n: f32) -> Option<NotNan<T>>

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

pub fn from_f64(n: f64) -> Option<NotNan<T>>

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

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

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

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

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

impl<'a> FromSql<'a> for NotNan<f32>

Parses an f32 and wraps it with NotNan::unchecked_new.

Safety

This will never accidentally wrap a NaN because nom’s recognize_float doesn’t include a representation of NaN.

fn from_sql(s: &'a [u8]) -> IResult<'a, NotNan<f32>>

impl<'a> FromSql<'a> for NotNan<f64>

Parses an f64 and wraps it with NotNan::unchecked_new.

Safety

This will never accidentally wrap a NaN because nom’s recognize_float doesn’t include a representation of NaN.

fn from_sql(s: &'a [u8]) -> IResult<'a, NotNan<f64>>

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

pub fn from_str(src: &str) -> Result<NotNan<T>, <NotNan<T> as FromStr>::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());

type Err = ParseNotNanError<<T as FromStr>::Err>

The associated error which can be returned from parsing.

impl<T> Hash for NotNan<T> where
    T: Float, 

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

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> Mul<NotNan<T>> for NotNan<T> where
    T: Float, 

type Output = NotNan<T>

The resulting type after applying the * operator.

pub fn mul(self, other: NotNan<T>) -> NotNan<T>

Performs the * operation.

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

Multiplies a float directly.

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

type Output = NotNan<T>

The resulting type after applying the * operator.

pub fn mul(self, other: T) -> NotNan<T>

Performs the * operation.

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

pub fn mul_assign(&mut self, other: NotNan<T>)

Performs the *= operation.

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

Multiplies a float directly.

Panics if the provided value is NaN.

pub fn mul_assign(&mut self, other: T)

Performs the *= operation.

impl<T> Neg for NotNan<T> where
    T: Float, 

type Output = NotNan<T>

The resulting type after applying the - operator.

pub fn neg(self) -> NotNan<T>

Performs the unary - operation.

impl<T> Num for NotNan<T> where
    T: Float, 

type FromStrRadixErr = ParseNotNanError<<T as Num>::FromStrRadixErr>

pub fn from_str_radix(
    src: &str,
    radix: u32
) -> Result<NotNan<T>, <NotNan<T> as Num>::FromStrRadixErr>

Convert from a string and radix (typically 2..=36).

impl<T> NumCast for NotNan<T> where
    T: Float, 

pub fn from<F>(n: F) -> Option<NotNan<T>> where
    F: ToPrimitive, 

Creates a number from another value that can be converted into a primitive via the ToPrimitive trait. If the source value cannot be represented by the target type, then None is returned.

impl<T> One for NotNan<T> where
    T: Float, 

pub fn one() -> NotNan<T>

Returns the multiplicative identity element of Self, 1.

fn set_one(&mut self)

Sets self to 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> Ord for NotNan<T> where
    T: Float, 

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

This method returns an Ordering between self and other.

#[must_use]

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

Compares and returns the maximum of two values.

#[must_use]

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

Compares and returns the minimum of two values.

#[must_use]

fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl<T> PartialEq<NotNan<T>> for NotNan<T> where
    T: PartialEq<T>, 

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

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

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

This method tests for !=.

impl<T> PartialEq<T> for NotNan<T> where
    T: Float, 

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

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

#[must_use]

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<T> PartialOrd<NotNan<T>> for NotNan<T> where
    T: PartialOrd<T>, 

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

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

#[must_use]

fn lt(&self, other: &Rhs) -> bool

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

#[must_use]

fn le(&self, other: &Rhs) -> bool

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

#[must_use]

fn gt(&self, other: &Rhs) -> bool

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

#[must_use]

fn ge(&self, other: &Rhs) -> bool

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

impl<'a, T> Product<&'a NotNan<T>> for NotNan<T> where
    T: 'a + Float + Product<T>, 

pub fn product<I>(iter: I) -> NotNan<T> where
    I: Iterator<Item = &'a NotNan<T>>, 

Method which takes an iterator and generates Self from the elements by multiplying the items.

impl<T> Product<NotNan<T>> for NotNan<T> where
    T: Float + Product<T>, 

pub fn product<I>(iter: I) -> NotNan<T> where
    I: Iterator<Item = NotNan<T>>, 

Method which takes an iterator and generates Self from the elements by multiplying the items.

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

type Output = NotNan<T>

The resulting type after applying the % operator.

pub fn rem(self, other: NotNan<T>) -> NotNan<T>

Performs the % operation.

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

Calculates % with a float directly.

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

type Output = NotNan<T>

The resulting type after applying the % operator.

pub fn rem(self, other: T) -> NotNan<T>

Performs the % operation.

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

pub fn rem_assign(&mut self, other: NotNan<T>)

Performs the %= operation.

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

Calculates %= with a float directly.

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

pub fn rem_assign(&mut self, other: T)

Performs the %= operation.

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

pub fn abs(&self) -> NotNan<T>

Computes the absolute value.

pub fn abs_sub(&self, other: &NotNan<T>) -> NotNan<T>

The positive difference of two numbers.

pub fn signum(&self) -> NotNan<T>

Returns the sign of the number.

pub fn is_positive(&self) -> bool

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

pub fn is_negative(&self) -> bool

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

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

type Output = NotNan<T>

The resulting type after applying the - operator.

pub fn sub(self, other: NotNan<T>) -> NotNan<T>

Performs the - operation.

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

Subtracts a float directly.

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

type Output = NotNan<T>

The resulting type after applying the - operator.

pub fn sub(self, other: T) -> NotNan<T>

Performs the - operation.

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

pub fn sub_assign(&mut self, other: NotNan<T>)

Performs the -= operation.

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

Subtracts a float directly.

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

pub fn sub_assign(&mut self, other: T)

Performs the -= operation.

impl<'a, T> Sum<&'a NotNan<T>> for NotNan<T> where
    T: 'a + Float + Sum<T>, 

pub fn sum<I>(iter: I) -> NotNan<T> where
    I: Iterator<Item = &'a NotNan<T>>, 

Method which takes an iterator and generates Self from the elements by “summing up” the items.

impl<T> Sum<NotNan<T>> for NotNan<T> where
    T: Float + Sum<T>, 

pub fn sum<I>(iter: I) -> NotNan<T> where
    I: Iterator<Item = NotNan<T>>, 

Method which takes an iterator and generates Self from the elements by “summing up” the items.

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

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

Converts the value of self to an i64. If the value cannot be represented by an i64, then None is returned.

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

Converts the value of self to a u64. If the value cannot be represented by a u64, then None is returned.

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

Converts the value of self to an isize. If the value cannot be represented by an isize, then None is returned.

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

Converts the value of self to an i8. If the value cannot be represented by an i8, then None is returned.

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

Converts the value of self to an i16. If the value cannot be represented by an i16, then None is returned.

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

Converts the value of self to an i32. If the value cannot be represented by an i32, then None is returned.

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

Converts the value of self to a usize. If the value cannot be represented by a usize, then None is returned.

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

Converts the value of self to a u8. If the value cannot be represented by a u8, then None is returned.

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

Converts the value of self to a u16. If the value cannot be represented by a u16, then None is returned.

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

Converts the value of self to a u32. If the value cannot be represented by a u32, then None is returned.

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

Converts the value of self to an f32. Overflows may map to positive or negative inifinity, otherwise None is returned if the value cannot be represented by an f32.

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

Converts the value of self to an f64. Overflows may map to positive or negative inifinity, otherwise None is returned if the value cannot be represented by an f64.

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

Converts the value of self to an i128. If the value cannot be represented by an i128 (i64 under the default implementation), then None is returned.

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

Converts the value of self to a u128. If the value cannot be represented by a u128 (u64 under the default implementation), then None is returned.

impl TryFrom<f32> for NotNan<f32>

type Error = FloatIsNan

The type returned in the event of a conversion error.

pub fn try_from(
    v: f32
) -> Result<NotNan<f32>, <NotNan<f32> as TryFrom<f32>>::Error>

Performs the conversion.

impl TryFrom<f64> for NotNan<f64>

type Error = FloatIsNan

The type returned in the event of a conversion error.

pub fn try_from(
    v: f64
) -> Result<NotNan<f64>, <NotNan<f64> as TryFrom<f64>>::Error>

Performs the conversion.

impl<T> Zero for NotNan<T> where
    T: Float, 

pub fn zero() -> NotNan<T>

Returns the additive identity element of Self, 0.

pub fn is_zero(&self) -> bool

Returns true if self is equal to the additive identity.

fn set_zero(&mut self)

Sets self to the additive identity element of Self, 0.

impl<T> Copy for NotNan<T> where
    T: Copy, 

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

impl<T> StructuralPartialEq for NotNan<T>