File: base16.go

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golang-github-multiformats-go-multibase 0.2.0-1
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package multibase

func hexEncodeToStringUpper(src []byte) string {
	dst := make([]byte, len(src)*2)
	hexEncodeUpper(dst, src)
	return string(dst)
}

var hexTableUppers = [16]byte{
	'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
	'A', 'B', 'C', 'D', 'E', 'F',
}

func hexEncodeUpper(dst, src []byte) int {
	for i, v := range src {
		dst[i*2] = hexTableUppers[v>>4]
		dst[i*2+1] = hexTableUppers[v&0x0f]
	}

	return len(src) * 2
}