#[cfg(any(feature = "v4", feature = "v7"))]
pub(crate) fn u128() -> u128 {
#[cfg(not(feature = "fast-rng"))]
{
let mut bytes = [0u8; 16];
getrandom::getrandom(&mut bytes).unwrap_or_else(|err| {
panic!("could not retrieve random bytes for uuid: {}", err)
});
u128::from_ne_bytes(bytes)
}
#[cfg(feature = "fast-rng")]
{
rand::random()
}
}
#[cfg(any(feature = "v1", feature = "v6"))]
pub(crate) fn u16() -> u16 {
#[cfg(not(feature = "fast-rng"))]
{
let mut bytes = [0u8; 2];
getrandom::getrandom(&mut bytes).unwrap_or_else(|err| {
panic!("could not retrieve random bytes for uuid: {}", err)
});
u16::from_ne_bytes(bytes)
}
#[cfg(feature = "fast-rng")]
{
rand::random()
}
}
#[cfg(feature = "v7")]
pub(crate) fn u64() -> u64 {
#[cfg(not(feature = "fast-rng"))]
{
let mut bytes = [0u8; 8];
getrandom::getrandom(&mut bytes).unwrap_or_else(|err| {
panic!("could not retrieve random bytes for uuid: {}", err)
});
u64::from_ne_bytes(bytes)
}
#[cfg(feature = "fast-rng")]
{
rand::random()
}
}