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uint.go
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/
uint.go
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package easyrand
import (
"crypto/rand"
"unsafe"
)
func UInt() (uint, error) {
var x uint
b := make([]byte, unsafe.Sizeof(x))
if _, err := rand.Read(b); err != nil {
return 0, err
}
for i := 0; i < len(b); i++ {
x |= uint(b[i]) << (8 * i)
}
return x, nil
}
func UIntRange(min, max uint) (uint, error) {
n, err := randomUInt64(uint64(min), uint64(max))
return uint(n), err
}
func UIntChecked() uint {
n, err := UInt()
if err != nil {
panic(err)
}
return n
}
func UIntRangeChecked(min, max uint) uint {
n, err := UIntRange(min, max)
if err != nil {
panic(err)
}
return n
}
func UIntUnchecked() uint {
n, _ := UInt()
return n
}
func UIntRangeUnchecked(min, max uint) uint {
n, _ := UIntRange(min, max)
return n
}