Struct VNumber 

pub struct VNumber(/* private fields */);

A JSON number value.

VNumber can represent integers (signed and unsigned) and floating point numbers. It stores the number in the most appropriate internal format.

Implementations

impl VNumber

pub fn from_i64(v: i64) -> Self

Creates a number from an i64.

pub fn from_u64(v: u64) -> Self

Creates a number from a u64.

pub fn from_f64(v: f64) -> Self

Creates a number from an f64.

pub fn zero() -> Self

Returns the number zero.

pub fn one() -> Self

Returns the number one.

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

Converts to i64 if it can be represented exactly.

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

Converts to u64 if it can be represented exactly.

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

Converts to f64 if it can be represented exactly.

pub fn to_f64_lossy(&self) -> f64

Converts to f64, potentially losing precision.

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

Converts to i32 if it can be represented exactly.

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

Converts to u32 if it can be represented exactly.

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

Converts to f32 if it can be represented exactly.

pub fn is_float(&self) -> bool

Returns true if this number was created from a floating point value.

pub fn is_integer(&self) -> bool

Returns true if this number is an integer (signed or unsigned).

impl VNumber

pub fn into_value(self) -> Value

Converts this VNumber into a Value, consuming self.

Trait Implementations

impl AsMut<Value> for VNumber

fn as_mut(&mut self) -> &mut Value

Converts this type into a mutable reference of the (usually inferred) input type.

impl AsRef<Value> for VNumber

fn as_ref(&self) -> &Value

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for VNumber

fn clone(&self) -> VNumber

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VNumber

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

Formats the value using the given formatter.

impl Default for VNumber

fn default() -> Self

Returns the “default value” for a type.

impl From<VNumber> for Value

fn from(n: VNumber) -> Self

Converts to this type from the input type.

impl From<f32> for VNumber

Available on crate feature alloc only.

fn from(v: f32) -> Self

Converts to this type from the input type.

impl From<f64> for VNumber

Available on crate feature alloc only.

fn from(v: f64) -> Self

Converts to this type from the input type.

impl From<i16> for VNumber

Available on crate feature alloc only.

fn from(v: i16) -> Self

Converts to this type from the input type.

impl From<i32> for VNumber

Available on crate feature alloc only.

fn from(v: i32) -> Self

Converts to this type from the input type.

impl From<i64> for VNumber

Available on crate feature alloc only.

fn from(v: i64) -> Self

Converts to this type from the input type.

impl From<i8> for VNumber

Available on crate feature alloc only.

fn from(v: i8) -> Self

Converts to this type from the input type.

impl From<isize> for VNumber

Available on crate feature alloc only.

fn from(v: isize) -> Self

Converts to this type from the input type.

impl From<u16> for VNumber

Available on crate feature alloc only.

fn from(v: u16) -> Self

Converts to this type from the input type.

impl From<u32> for VNumber

Available on crate feature alloc only.

fn from(v: u32) -> Self

Converts to this type from the input type.

impl From<u64> for VNumber

Available on crate feature alloc only.

fn from(v: u64) -> Self

Converts to this type from the input type.

impl From<u8> for VNumber

Available on crate feature alloc only.

fn from(v: u8) -> Self

Converts to this type from the input type.

impl From<usize> for VNumber

Available on crate feature alloc only.

fn from(v: usize) -> Self

Converts to this type from the input type.

impl Hash for VNumber

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 for VNumber

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for VNumber

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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