Struct Qty

pub(crate) struct Qty(pub usize);

Quantity of memory used, measured in bytes.

Like usize but FromStr and Displays in a more friendly and less precise way

Parses from (with or without the internal space):

• <amount> (implicitly, bytes)
• <amount> B
• <amount> KiB/MiB/GiB/TiB (binary, 1024-based units)
• <amount> KB/MB/GB/TB (decimal, 1000-based units)

Displays to approximately 3 significant figures, preferring binary (1024-based) multipliers. (There is no facility for adjusting the format.)

Tuple Fields

0: usize

Implementations

impl ByteQty

pub const MAX: ByteQty

Maximum for the type

pub const fn as_usize(self) -> usize

Return the value as a plain number, a usize

Provided so call sites don’t need to write an opaque .0 everywhere, even though that would be fine.

Methods from Deref<Target = usize>

pub const MIN: usize = 0usize

pub const MAX: usize = 18_446_744_073_709_551_615usize

pub const BITS: u32 = 64u32

Trait Implementations

impl BookkeepableQty for ByteQty

const ZERO: Qty

Zero (default value)

fn as_raw(&self) -> Qty

Inspect as a raw untracked Qty

impl Clone for ByteQty

fn clone(&self) -> ByteQty

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ByteQty

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

Formats the value using the given formatter.

impl Default for ByteQty

fn default() -> ByteQty

Returns the “default value” for a type.

impl Deref for ByteQty

type Target = usize

The resulting type after dereferencing.

fn deref(&self) -> &<ByteQty as Deref>::Target

Dereferences the value.

impl DerefMut for ByteQty

fn deref_mut(&mut self) -> &mut <ByteQty as Deref>::Target

Mutably dereferences the value.

impl<'de> Deserialize<'de> for ByteQty

fn deserialize<__D>( __deserializer: __D, ) -> Result<ByteQty, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ByteQty

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

Formats the value using the given formatter.

impl From<ByteQty> for usize

fn from(value: ByteQty) -> usize

Converts to this type from the input type.

impl From<usize> for ByteQty

fn from(value: usize) -> ByteQty

Converts to this type from the input type.

impl FromStr for ByteQty

type Err = InvalidByteQty

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<ByteQty, InvalidByteQty>

Parses a string s to return a value of this type.

impl Hash for ByteQty

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, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ByteQty

fn cmp(&self, other: &ByteQty) -> Ordering

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ByteQty

fn eq(&self, other: &ByteQty) -> 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 ByteQty

fn partial_cmp(&self, other: &ByteQty) -> 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.

impl Serialize for ByteQty

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<ByteQtySerde> for ByteQty

type Error = InvalidByteQty

The type returned in the event of a conversion error.

fn try_from(qs: ByteQtySerde) -> Result<ByteQty, InvalidByteQty>

Performs the conversion.

impl TryFrom<f64> for ByteQty

type Error = InvalidByteQty

The type returned in the event of a conversion error.

fn try_from(f: f64) -> Result<ByteQty, InvalidByteQty>

Performs the conversion.

impl TryFrom<u64> for ByteQty

type Error = InvalidByteQty

The type returned in the event of a conversion error.

fn try_from(v: u64) -> Result<ByteQty, InvalidByteQty>

Performs the conversion.

impl Copy for ByteQty

impl Eq for ByteQty

impl StructuralPartialEq for ByteQty