mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-22 11:41:19 +00:00
56 lines
852 B
Go
56 lines
852 B
Go
package bor
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func AppendBytes32(data ...[]byte) []byte {
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var result []byte
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for _, v := range data {
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paddedV, err := ConvertTo32(v)
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if err == nil {
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result = append(result, paddedV[:]...)
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}
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}
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return result
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}
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func NextPowerOfTwo(n uint64) uint64 {
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if n == 0 {
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return 1
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}
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// http://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2
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n--
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n |= n >> 1
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n |= n >> 2
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n |= n >> 4
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n |= n >> 8
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n |= n >> 16
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n |= n >> 32
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n++
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return n
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}
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func ConvertTo32(input []byte) (output [32]byte, err error) {
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l := len(input)
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if l > 32 || l == 0 {
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return
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}
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copy(output[32-l:], input)
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return
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}
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func Convert(input [][32]byte) [][]byte {
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output := make([][]byte, 0, len(input))
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for _, in := range input {
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newInput := make([]byte, len(in[:]))
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copy(newInput, in[:])
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output = append(output, newInput)
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}
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return output
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}
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