Struct libdeflater::CompressionLvl

pub struct CompressionLvl(_);

Compression level used by a Compressor instance.

Implementations

impl CompressionLvl

pub fn new(level: i32) -> Result<CompressionLvl, CompressionLvlError>

Try to create a valid CompressionLvl from a numeric value.

If level is a valid custom compression level for libdeflate, returns a Result::Ok(CompressionLvl). Otherwise, returns Result::Error(error).

Valid compression levels for libdeflate, at time of writing, are 1-12.

pub fn fastest() -> CompressionLvl

Returns the fastest compression level. This compression level offers the highest performance but lowest compression ratio.

pub fn best() -> CompressionLvl

Returns the best compression level, in terms of compression ratio. This compression level offers the best compression ratio but lowest performance.

pub fn iter() -> CompressionLvlIter

Returns an iterator that emits all compression levels supported by libdeflate in ascending order.

Trait Implementations

impl Clone for CompressionLvl

fn clone(&self) -> CompressionLvl

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CompressionLvl

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

Formats the value using the given formatter.

impl Default for CompressionLvl

fn default() -> CompressionLvl

Returns the default compression level reccomended by libdeflate.

impl From<&CompressionLvl> for i32

fn from(level: &CompressionLvl) -> Self

Converts to this type from the input type.

impl From<CompressionLvl> for i32

fn from(level: CompressionLvl) -> Self

Converts to this type from the input type.

impl Ord for CompressionLvl

fn cmp(&self, other: &CompressionLvl) -> 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.

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

Restrict a value to a certain interval.

impl PartialEq<CompressionLvl> for CompressionLvl

fn eq(&self, other: &CompressionLvl) -> 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 PartialOrd<CompressionLvl> for CompressionLvl

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

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

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

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

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

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

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

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

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 Copy for CompressionLvl

impl Eq for CompressionLvl

impl StructuralEq for CompressionLvl

impl StructuralPartialEq for CompressionLvl