status-go/vendor/github.com/steakknife/hamming/popcnt_amd64.go

66 lines
1.6 KiB
Go

//
// Package hamming distance calculations in Go
//
// https://github.com/steakknife/hamming
//
// Copyright © 2014, 2015, 2016, 2018 Barry Allard
//
// MIT license
//
package hamming
import "strconv"
// HasPopCnt returns true if *PopCnt functions are callable
func HasPopCnt() (ret bool)
// CountBitsInt8PopCnt count 1's in x
func CountBitsInt8PopCnt(x int8) (ret int)
// CountBitsInt16PopCnt count 1's in x
func CountBitsInt16PopCnt(x int16) (ret int)
// CountBitsInt32PopCnt count 1's in x
func CountBitsInt32PopCnt(x int32) (ret int)
// CountBitsInt64PopCnt count 1's in x
func CountBitsInt64PopCnt(x int64) (ret int)
// CountBitsIntPopCnt count 1's in x
func CountBitsIntPopCnt(x int) int {
if strconv.IntSize == 64 {
return CountBitsInt64PopCnt(int64(x))
} else if strconv.IntSize == 32 {
return CountBitsInt32PopCnt(int32(x))
}
panic("strconv.IntSize must be 32 or 64")
}
// CountBitsUint8PopCnt count 1's in x
func CountBitsUint8PopCnt(x uint8) (ret int)
// CountBitsUint16PopCnt count 1's in x
func CountBitsUint16PopCnt(x uint16) (ret int)
// CountBitsUint32PopCnt count 1's in x
func CountBitsUint32PopCnt(x uint32) (ret int)
// CountBitsUint64PopCnt count 1's in x
func CountBitsUint64PopCnt(x uint64) (ret int)
// CountBitsUintPopCnt count 1's in x
func CountBitsUintPopCnt(x uint) int {
if strconv.IntSize == 64 {
return CountBitsUint64PopCnt(uint64(x))
} else if strconv.IntSize == 32 {
return CountBitsUint32PopCnt(uint32(x))
}
panic("strconv.IntSize must be 32 or 64")
}
// CountBitsBytePopCnt count 1's in x
func CountBitsBytePopCnt(x byte) (ret int)
// CountBitsRunePopCnt count 1's in x
func CountBitsRunePopCnt(x rune) (ret int)