/
misc.go
54 lines (44 loc) · 1.04 KB
/
misc.go
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package eventstore
import (
"encoding/binary"
"math"
"unsafe"
)
func GetFixedSizeBytes(size int, str string) []byte {
data := make([]byte, size)
copy(data[:], str)
return data
}
func Float64ToBytes(n float64) []byte {
b := make([]byte, 8)
bits := math.Float64bits(n)
binary.BigEndian.PutUint64(b, bits)
return b
}
func BytesToFloat64(data []byte) float64 {
return math.Float64frombits(binary.BigEndian.Uint64(data))
}
func Uint64ToBytes(n uint64) []byte {
b := make([]byte, 8)
binary.BigEndian.PutUint64(b, uint64(n))
return b
}
func BytesToUint64(data []byte) uint64 {
return uint64(binary.BigEndian.Uint64(data))
}
func Int64ToBytes(n int64) []byte {
b := make([]byte, 8)
binary.BigEndian.PutUint64(b, uint64(n))
return b
}
func BytesToInt64(data []byte) int64 {
return int64(binary.BigEndian.Uint64(data))
}
func StrToBytes(s string) []byte {
x := (*[2]uintptr)(unsafe.Pointer(&s))
h := [3]uintptr{x[0], x[1], x[1]}
return *(*[]byte)(unsafe.Pointer(&h))
}
func BytesToString(b []byte) string {
return *(*string)(unsafe.Pointer(&b))
}