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uint64.go
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/
uint64.go
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package easyrand
import (
"crypto/rand"
)
func UInt64() (uint64, error) {
b := make([]byte, 8)
if _, err := rand.Read(b); err != nil {
return 0, err
}
return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56, nil
}
func UInt64Range(min, max uint64) (uint64, error) {
return randomUInt64(min, max)
}
func UInt64Checked() uint64 {
n, err := UInt64()
if err != nil {
panic(err)
}
return n
}
func UInt64RangeChecked(min, max uint64) uint64 {
n, err := UInt64Range(min, max)
if err != nil {
panic(err)
}
return n
}
func UInt64Unchecked() uint64 {
n, _ := UInt64()
return n
}
func UInt64RangeUnchecked(min, max uint64) uint64 {
n, _ := UInt64Range(min, max)
return n
}