37 lines
731 B
Go
37 lines
731 B
Go
/*
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Package slice contains byte slice helpers.
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*/
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package slice
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// CopyReverse returns a new byte slice containing reversed version of the
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// original.
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func CopyReverse(b []byte) []byte {
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dest := make([]byte, len(b))
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reverse(dest, b)
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return dest
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}
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// Reverse does in-place reversing of byte slice.
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func Reverse(b []byte) {
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reverse(b, b)
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}
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func reverse(dst []byte, src []byte) {
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for i, j := 0, len(src)-1; i <= j; i, j = i+1, j-1 {
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dst[i], dst[j] = src[j], src[i]
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}
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}
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// Copy copies the byte slice into new slice (make/copy).
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func Copy(b []byte) []byte {
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d := make([]byte, len(b))
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copy(d, b)
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return d
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}
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// Clean wipes the data in b by filling it with zeros.
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func Clean(b []byte) {
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for i := range b {
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b[i] = 0
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}
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}
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