#[repr(i32)]
pub enum CompressionLevel {
    NoCompression,
    BestSpeed,
    BestCompression,
    UberCompression,
    DefaultLevel,
    DefaultCompression,
}
Expand description

How much processing the compressor should do to compress the data. NoCompression and Bestspeed have special meanings, the other levels determine the number of checks for matches in the hash chains and whether to use lazy or greedy parsing.

Variants§

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NoCompression

Don’t do any compression, only output uncompressed blocks.

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BestSpeed

Fast compression. Uses a special compression routine that is optimized for speed.

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BestCompression

Slow/high compression. Do a lot of checks to try to find good matches.

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UberCompression

Even more checks, can be very slow.

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DefaultLevel

Default compromise between speed and compression.

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DefaultCompression

Use the default compression level.

Trait Implementations§

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
Feeds this value into the given Hasher. Read more
Feeds a slice of this type into the given Hasher. Read more
This method tests for self and other values to be equal, and is used by ==. Read more
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.