mirror of
https://github.com/charlienet/go-mixed.git
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32 lines
512 B
Go
32 lines
512 B
Go
package bytesconv
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import "fmt"
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type endian int
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const (
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BigEndian endian = iota + 1
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LittleEndian
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)
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func (e endian) BytesToUInt64(data []byte) (uint64, error) {
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if len(data) > 8 {
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return 0, fmt.Errorf("bytes to uint64, bytes length is invaild")
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}
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var ret uint64
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var len int = len(data)
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if e == BigEndian {
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for i := 0; i < len; i++ {
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ret = ret | (uint64(data[len-1-i]) << (i * 8))
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}
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} else {
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for i := 0; i < len; i++ {
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ret = ret | (uint64(data[i]) << (i * 8))
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}
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}
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return ret, nil
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}
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