Struct validators::number::NumberLteZero

pub struct NumberLteZero(_);

Implementations

impl NumberLteZero

pub fn from_string(full_number: String) -> Result<NumberLteZero, NumberError>

pub fn from_str(full_number: &str) -> Result<NumberLteZero, NumberError>

pub fn from_number(number: Number) -> Result<NumberLteZero, NumberError>

pub fn from_f64(value: f64) -> Result<NumberLteZero, NumberError>

pub fn from_f32(value: f32) -> Result<NumberLteZero, NumberError>

pub fn from_i8(value: i8) -> Result<NumberLteZero, NumberError>

pub fn from_i16(value: i16) -> Result<NumberLteZero, NumberError>

pub fn from_i32(value: i32) -> Result<NumberLteZero, NumberError>

pub fn from_i64(value: i64) -> Result<NumberLteZero, NumberError>

pub fn from_i128(value: i128) -> Result<NumberLteZero, NumberError>

pub fn from_u8(value: u8) -> Result<NumberLteZero, NumberError>

pub fn from_u16(value: u16) -> Result<NumberLteZero, NumberError>

pub fn from_u32(value: u32) -> Result<NumberLteZero, NumberError>

pub fn from_u64(value: u64) -> Result<NumberLteZero, NumberError>

pub fn from_u128(value: u128) -> Result<NumberLteZero, NumberError>

pub fn into_number(self) -> Number

pub fn as_number(&self) -> &Number

impl NumberLteZero

pub fn get_number(&self) -> f64

pub fn is_integer(&self) -> bool

impl NumberLteZero

pub fn is_zero(&self) -> bool

pub fn is_negative(&self) -> bool

Methods from Deref<Target = f64>

pub const RADIX: u32 = 2u32

pub const MANTISSA_DIGITS: u32 = 53u32

pub const DIGITS: u32 = 15u32

pub const EPSILON: f64 = 2.2204460492503131E-16f64

pub const MIN: f64 = -1.7976931348623157E+308f64

pub const MIN_POSITIVE: f64 = 2.2250738585072014E-308f64

pub const MAX: f64 = 1.7976931348623157E+308f64

pub const MIN_EXP: i32 = -1_021i32

pub const MAX_EXP: i32 = 1_024i32

pub const MIN_10_EXP: i32 = -307i32

pub const MAX_10_EXP: i32 = 308i32

pub const NAN: f64 = NaNf64

pub const INFINITY: f64 = +Inff64

pub const NEG_INFINITY: f64 = -Inff64

pub fn total_cmp(&self, other: &f64) -> Ordering

Return the ordering between self and other.

Unlike the standard partial comparison between floating point numbers, this comparison always produces an ordering in accordance to the totalOrder predicate as defined in the IEEE 754 (2008 revision) floating point standard. The values are ordered in the following sequence:

• negative quiet NaN
• negative signaling NaN
• negative infinity
• negative numbers
• negative subnormal numbers
• negative zero
• positive zero
• positive subnormal numbers
• positive numbers
• positive infinity
• positive signaling NaN
• positive quiet NaN.

The ordering established by this function does not always agree with the PartialOrd and PartialEq implementations of f64. For example, they consider negative and positive zero equal, while total_cmp doesn’t.

The interpretation of the signaling NaN bit follows the definition in the IEEE 754 standard, which may not match the interpretation by some of the older, non-conformant (e.g. MIPS) hardware implementations.

Example

struct GoodBoy {
    name: String,
    weight: f64,
}

let mut bois = vec![
    GoodBoy { name: "Pucci".to_owned(), weight: 0.1 },
    GoodBoy { name: "Woofer".to_owned(), weight: 99.0 },
    GoodBoy { name: "Yapper".to_owned(), weight: 10.0 },
    GoodBoy { name: "Chonk".to_owned(), weight: f64::INFINITY },
    GoodBoy { name: "Abs. Unit".to_owned(), weight: f64::NAN },
    GoodBoy { name: "Floaty".to_owned(), weight: -5.0 },
];

bois.sort_by(|a, b| a.weight.total_cmp(&b.weight));

Trait Implementations

impl Clone for NumberLteZero

fn clone(&self) -> NumberLteZero

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for NumberLteZero

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

Formats the value using the given formatter.

impl Deref for NumberLteZero

type Target = f64

The resulting type after dereferencing.

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

Dereferences the value.

impl<'de> Deserialize<'de> for NumberLteZero

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>where
    D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for NumberLteZero

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

Formats the value using the given formatter.

impl From<NumberLteZero> for Number

fn from(d: NumberLteZero) -> Self

Converts to this type from the input type.

impl<'a> FromFormValue<'a> for NumberLteZero

type Error = NumberError

The associated error which can be returned from parsing. It is a good idea to have the return type be or contain an &'v str so that the unparseable string can be examined after a bad parse.

fn from_form_value(form_value: &'a RawStr) -> Result<Self, Self::Error>

Parses an instance of Self from an HTTP form field value or returns an Error if one cannot be parsed.

fn default() -> Option<Self>

Returns a default value to be used when the form field does not exist. If this returns None, then the field is required. Otherwise, this should return Some(default_value). The default implementation simply returns None.

impl<'a> FromParam<'a> for NumberLteZero

type Error = NumberError

The associated error to be returned if parsing/validation fails.

fn from_param(param: &'a RawStr) -> Result<Self, Self::Error>

Parses and validates an instance of Self from a path parameter string or returns an Error if parsing or validation fails.

impl Hash for NumberLteZero

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,
    Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq<NumberLteZero> for NumberLteZero

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

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for NumberLteZero

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>where
    S: Serializer,

Serialize this value into the given Serde serializer.

impl ValidatedWrapper for NumberLteZero

type Error = NumberError

fn from_string(full_number: String) -> Result<Self, Self::Error>

fn from_str(full_number: &str) -> Result<Self, Self::Error>

impl Eq for NumberLteZero

impl StructuralEq for NumberLteZero

impl StructuralPartialEq for NumberLteZero

impl Validated for NumberLteZero