Trait NegModPowerOf2Assign 

pub trait NegModPowerOf2Assign {
    // Required method
    fn neg_mod_power_of_2_assign(&mut self, other: u64);
}

Divides the negative of a number by $2^k$, replacing the number by the remainder.

If the quotient were computed, the quotient and remainder would satisfy $x = q2^k - r$ and $0 \leq r < 2^k$.

Required Methods

fn neg_mod_power_of_2_assign(&mut self, other: u64)

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl NegModPowerOf2Assign for u8

fn neg_mod_power_of_2_assign(&mut self, pow: u64)

Divides the negative of a number by $2^k$, returning just the remainder.

If the quotient were computed, the quotient and remainder would satisfy $x = q2^k - r$ and $0 \leq r < 2^k$.

$$ x \gets 2^k\left \lceil \frac{x}{2^k} \right \rceil - x. $$

Worst-case complexity

Constant time and additional memory.

Panics

Panics if self is nonzero and pow is greater than Self::WIDTH.

Examples

See here.

impl NegModPowerOf2Assign for u16

fn neg_mod_power_of_2_assign(&mut self, pow: u64)

Divides the negative of a number by $2^k$, returning just the remainder.

If the quotient were computed, the quotient and remainder would satisfy $x = q2^k - r$ and $0 \leq r < 2^k$.

$$ x \gets 2^k\left \lceil \frac{x}{2^k} \right \rceil - x. $$

Worst-case complexity

Constant time and additional memory.

Panics

Panics if self is nonzero and pow is greater than Self::WIDTH.

Examples

See here.

impl NegModPowerOf2Assign for u32

fn neg_mod_power_of_2_assign(&mut self, pow: u64)

Divides the negative of a number by $2^k$, returning just the remainder.

If the quotient were computed, the quotient and remainder would satisfy $x = q2^k - r$ and $0 \leq r < 2^k$.

$$ x \gets 2^k\left \lceil \frac{x}{2^k} \right \rceil - x. $$

Worst-case complexity

Constant time and additional memory.

Panics

Panics if self is nonzero and pow is greater than Self::WIDTH.

Examples

See here.

impl NegModPowerOf2Assign for u64

fn neg_mod_power_of_2_assign(&mut self, pow: u64)

Divides the negative of a number by $2^k$, returning just the remainder.

If the quotient were computed, the quotient and remainder would satisfy $x = q2^k - r$ and $0 \leq r < 2^k$.

$$ x \gets 2^k\left \lceil \frac{x}{2^k} \right \rceil - x. $$

Worst-case complexity

Constant time and additional memory.

Panics

Panics if self is nonzero and pow is greater than Self::WIDTH.

Examples

See here.

impl NegModPowerOf2Assign for u128

fn neg_mod_power_of_2_assign(&mut self, pow: u64)

Divides the negative of a number by $2^k$, returning just the remainder.

If the quotient were computed, the quotient and remainder would satisfy $x = q2^k - r$ and $0 \leq r < 2^k$.

$$ x \gets 2^k\left \lceil \frac{x}{2^k} \right \rceil - x. $$

Worst-case complexity

Constant time and additional memory.

Panics

Panics if self is nonzero and pow is greater than Self::WIDTH.

Examples

See here.

impl NegModPowerOf2Assign for usize

fn neg_mod_power_of_2_assign(&mut self, pow: u64)

Divides the negative of a number by $2^k$, returning just the remainder.

If the quotient were computed, the quotient and remainder would satisfy $x = q2^k - r$ and $0 \leq r < 2^k$.

$$ x \gets 2^k\left \lceil \frac{x}{2^k} \right \rceil - x. $$

Worst-case complexity

Constant time and additional memory.

Panics

Panics if self is nonzero and pow is greater than Self::WIDTH.

Examples

See here.

Implementors