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