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42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
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package smallendian
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// helper function which converts a uint64 to a []byte in Small Endian
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func ToUint64(n uint64) [8]byte {
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data := [8]byte{}
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data[7] = byte((n >> 56) & 0xFF)
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data[6] = byte((n >> 48) & 0xFF)
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data[5] = byte((n >> 40) & 0xFF)
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data[4] = byte((n >> 32) & 0xFF)
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data[3] = byte((n >> 24) & 0xFF)
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data[2] = byte((n >> 16) & 0xFF)
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data[1] = byte((n >> 8) & 0xFF)
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data[0] = byte(n & 0xFF)
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return data
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}
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// helper function which converts a small endian []byte to a uint64
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func FromUint64(data [8]byte) uint64 {
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i := (uint64(data[0]) << 0) | (uint64(data[1]) << 8) |
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(uint64(data[2]) << 16) | (uint64(data[3]) << 24) |
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(uint64(data[4]) << 32) | (uint64(data[5]) << 40) |
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(uint64(data[6]) << 48) | (uint64(data[7]) << 56)
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return uint64(i)
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}
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// helper function which converts a int to a []byte in Small Endian
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func ToInt(n int) [4]byte {
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data := [4]byte{}
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data[3] = byte((n >> 24) & 0xFF)
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data[2] = byte((n >> 16) & 0xFF)
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data[1] = byte((n >> 8) & 0xFF)
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data[0] = byte(n & 0xFF)
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return data
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}
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// helper function which converts a small endian []byte to a int
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func FromInt(data [4]byte) int {
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i := (int(data[0]) << 0) | (int(data[1]) << 8) |
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(int(data[2]) << 16) | (int(data[3]) << 24)
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return int(i)
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}
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