package utils

import "github.com/apache/arrow/go/v11/internal/utils"

Index ¶

• Variables
• func GetMinMaxInt16(v []int16) (min, max int16)
• func GetMinMaxInt32(v []int32) (min, max int32)
• func GetMinMaxInt64(v []int64) (min, max int64)
• func GetMinMaxInt8(v []int8) (min, max int8)
• func GetMinMaxUint16(v []uint16) (min, max uint16)
• func GetMinMaxUint32(v []uint32) (min, max uint32)
• func GetMinMaxUint64(v []uint64) (min, max uint64)
• func GetMinMaxUint8(v []uint8) (min, max uint8)
• func Max(a, b int64) int64
• func MaxInt(a, b int) int
• func Min(a, b int64) int64
• func MinInt(a, b int) int
• func NewBufferedReader(rd io.Reader, sz int) *bufferedReader
• func TransposeInts(src, dest interface{}, mapping []int32) error
• func TransposeIntsBuffers(inType, outType arrow.DataType, indata, outdata []byte, inOffset, outOffset int, length int, transposeMap []int32) error

Variables ¶

var (
	ToLEInt16   = func(x int16) int16 { return x }
	ToLEUint16  = func(x uint16) uint16 { return x }
	ToLEUint32  = func(x uint32) uint32 { return x }
	ToLEUint64  = func(x uint64) uint64 { return x }
	ToLEInt32   = func(x int32) int32 { return x }
	ToLEInt64   = func(x int64) int64 { return x }
	ToLEFloat32 = func(x float32) float32 { return x }
	ToLEFloat64 = func(x float64) float64 { return x }
)

Functions ¶

func GetMinMaxInt16 ¶

func GetMinMaxInt16(v []int16) (min, max int16)

GetMinMaxInt16 returns the min and max for a int16 slice, using AVX2 or SSE4 cpu extensions if available, falling back to a pure go implementation if they are unavailable or built with the noasm tag.

func GetMinMaxInt32 ¶

func GetMinMaxInt32(v []int32) (min, max int32)

GetMinMaxInt32 returns the min and max for a int32 slice, using AVX2 or SSE4 cpu extensions if available, falling back to a pure go implementation if they are unavailable or built with the noasm tag.

func GetMinMaxInt64 ¶

func GetMinMaxInt64(v []int64) (min, max int64)

GetMinMaxInt64 returns the min and max for a int64 slice, using AVX2 or SSE4 cpu extensions if available, falling back to a pure go implementation if they are unavailable or built with the noasm tag.

func GetMinMaxInt8 ¶

func GetMinMaxInt8(v []int8) (min, max int8)

GetMinMaxInt8 returns the min and max for a int8 slice, using AVX2 or SSE4 cpu extensions if available, falling back to a pure go implementation if they are unavailable or built with the noasm tag.

func GetMinMaxUint16 ¶

func GetMinMaxUint16(v []uint16) (min, max uint16)

GetMinMaxUint16 returns the min and max for a uint16 slice, using AVX2 or SSE4 cpu extensions if available, falling back to a pure go implementation if they are unavailable or built with the noasm tag.

func GetMinMaxUint32 ¶

func GetMinMaxUint32(v []uint32) (min, max uint32)

GetMinMaxUint32 returns the min and max for a uint32 slice, using AVX2 or SSE4 cpu extensions if available, falling back to a pure go implementation if they are unavailable or built with the noasm tag.

func GetMinMaxUint64 ¶

func GetMinMaxUint64(v []uint64) (min, max uint64)

GetMinMaxUint64 returns the min and max for a uint64 slice, using AVX2 or SSE4 cpu extensions if available, falling back to a pure go implementation if they are unavailable or built with the noasm tag.

func GetMinMaxUint8 ¶

func GetMinMaxUint8(v []uint8) (min, max uint8)

GetMinMaxUint8 returns the min and max for a uint8 slice, using AVX2 or SSE4 cpu extensions if available, falling back to a pure go implementation if they are unavailable or built with the noasm tag.

func Max ¶

func Max(a, b int64) int64

Max is a convenience Max function for int64

func MaxInt ¶

func MaxInt(a, b int) int

MaxInt is a convenience Max function for int

func Min ¶

func Min(a, b int64) int64

Min is a convenience Min function for int64

func MinInt ¶

func MinInt(a, b int) int

MinInt is a convenience Min function for int

func NewBufferedReader ¶

func NewBufferedReader(rd io.Reader, sz int) *bufferedReader

NewBufferedReader returns a buffered reader with similar semantics to bufio.Reader except Peek will expand the internal buffer if needed rather than return an error.

func TransposeInts ¶

func TransposeInts(src, dest interface{}, mapping []int32) error

TransposeInts expects two integral slices and the values they map to. Returning an error if either src or dest are not an integral type.

func TransposeIntsBuffers ¶

func TransposeIntsBuffers(inType, outType arrow.DataType, indata, outdata []byte, inOffset, outOffset int, length int, transposeMap []int32) error

TransposeIntsBuffers takes the data-types, byte buffers, and offsets of a source and destination buffer to perform TransposeInts on with the provided mapping data.

Source Files ¶

buf_reader.go endians_default.go math.go min_max.go transpose_ints.go transpose_ints_def.go