mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
46 lines
829 B
Go
46 lines
829 B
Go
package util
|
|
|
|
// big endian
|
|
|
|
func BytesToUint64(b []byte) (v uint64) {
|
|
length := uint(len(b))
|
|
for i := uint(0); i < length-1; i++ {
|
|
v += uint64(b[i])
|
|
v <<= 8
|
|
}
|
|
v += uint64(b[length-1])
|
|
return
|
|
}
|
|
func BytesToUint32(b []byte) (v uint32) {
|
|
length := uint(len(b))
|
|
for i := uint(0); i < length-1; i++ {
|
|
v += uint32(b[i])
|
|
v <<= 8
|
|
}
|
|
v += uint32(b[length-1])
|
|
return
|
|
}
|
|
func BytesToUint16(b []byte) (v uint16) {
|
|
v += uint16(b[0])
|
|
v <<= 8
|
|
v += uint16(b[1])
|
|
return
|
|
}
|
|
func Uint64toBytes(b []byte, v uint64) {
|
|
for i := uint(0); i < 8; i++ {
|
|
b[7-i] = byte(v >> (i * 8))
|
|
}
|
|
}
|
|
func Uint32toBytes(b []byte, v uint32) {
|
|
for i := uint(0); i < 4; i++ {
|
|
b[3-i] = byte(v >> (i * 8))
|
|
}
|
|
}
|
|
func Uint16toBytes(b []byte, v uint16) {
|
|
b[0] = byte(v >> 8)
|
|
b[1] = byte(v)
|
|
}
|
|
func Uint8toBytes(b []byte, v uint8) {
|
|
b[0] = byte(v)
|
|
}
|