Trait funty::Unsigned

pub trait Unsigned: Integral {
    // Required methods
    fn is_power_of_two(self) -> bool;
    fn next_power_of_two(self) -> Self;
    fn checked_next_power_of_two(self) -> Option<Self>;
}

Declare that a type is an unsigned integer.

Required Methods

fn is_power_of_two(self) -> bool

Returns true if and only if self == 2^k for some k.

fn next_power_of_two(self) -> Self

Returns the smallest power of two greater than or equal to self.

When return value overflows (i.e., self > (1 << (N-1)) for type uN), it panics in debug mode and return value is wrapped to 0 in release mode (the only situation in which method can return 0).

fn checked_next_power_of_two(self) -> Option<Self>

Returns the smallest power of two greater than or equal to n. If the next power of two is greater than the type’s maximum value, None is returned, otherwise the power of two is wrapped in Some.

Implementations on Foreign Types

impl Unsigned for u16

fn is_power_of_two(self) -> bool

fn next_power_of_two(self) -> Self

fn checked_next_power_of_two(self) -> Option<Self>

impl Unsigned for usize

fn is_power_of_two(self) -> bool

fn next_power_of_two(self) -> Self

fn checked_next_power_of_two(self) -> Option<Self>

impl Unsigned for u128

fn is_power_of_two(self) -> bool

fn next_power_of_two(self) -> Self

fn checked_next_power_of_two(self) -> Option<Self>

impl Unsigned for u8

fn is_power_of_two(self) -> bool

fn next_power_of_two(self) -> Self

fn checked_next_power_of_two(self) -> Option<Self>

impl Unsigned for u32

fn is_power_of_two(self) -> bool

fn next_power_of_two(self) -> Self

fn checked_next_power_of_two(self) -> Option<Self>

impl Unsigned for u64

fn is_power_of_two(self) -> bool

fn next_power_of_two(self) -> Self

fn checked_next_power_of_two(self) -> Option<Self>

Implementors