Module arrow2::bitmap::utils [−][src]
Structs
This struct is used to efficiently iterate over bit masks by loading bytes on
the stack with alignments of uX. This allows efficient iteration over bitmaps.
An iterator over a BitChunk from a slice of bytes.
An iterator over bits according to the LSB,
i.e. the bytes [4u8, 128u8] correspond to [false, false, true, false, ..., true].
Iterator over a bitmap that returns slices of set regions
This is the most efficient method to extract slices of values from arrays
with a validity bitmap.
For example, the bitmap 00101111 returns [(0,4), (6,1)]
An iterator adapter that converts an iterator over T and a validity
into an iterator over Option<T> based on the validity.
Traits
Something that can be use as a chunk of bits. This is used to create masks of a given number
of lengths, whose width is 1. In simd_packed notation, this corresponds to m1xY.
Functions
Returns the number of bytes required to hold bits bits.
Returns whether bit at position i in data is set or not
Returns whether bit at position i in data is set or not.
Returns whether bit at position i in byte is set or not
Sets bit at position i in byte
Returns whether bit at position i in data is set or not
Returns an iterator adapter that returns Option