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ModPowerOf2AddMul

Trait ModPowerOf2AddMul 

Source
pub trait ModPowerOf2AddMul<Y = Self, Z = Self> {
    type Output;

    // Required method
    fn mod_power_of_2_add_mul(self, y: Y, z: Z, pow: u64) -> Self::Output;
}
Expand description

Adds a number and the product of two other numbers, modulo $2^k$. All three inputs must be already reduced modulo $2^k$.

Required Associated Types§

Required Methods§

Source

fn mod_power_of_2_add_mul(self, y: Y, z: Z, pow: u64) -> Self::Output

Dyn Compatibility§

This trait is dyn compatible.

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

Implementations on Foreign Types§

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impl ModPowerOf2AddMul for u8

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fn mod_power_of_2_add_mul(self, y: u8, z: u8, pow: u64) -> u8

Adds a number and the product of two other numbers, modulo a fourth number $2^k$. All three inputs must be already reduced modulo $2^k$.

$f(x, y, z, k) = w$, where $x, y, z, w < 2^k$ and $x + yz \equiv w \mod 2^k$.

§Worst-case complexity

Constant time and additional memory.

§Panics

Panics if pow is greater than Self::WIDTH or if self, y, or z are greater than or equal to $2^k$.

§Examples

See here.

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type Output = u8

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impl ModPowerOf2AddMul for u16

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fn mod_power_of_2_add_mul(self, y: u16, z: u16, pow: u64) -> u16

Adds a number and the product of two other numbers, modulo a fourth number $2^k$. All three inputs must be already reduced modulo $2^k$.

$f(x, y, z, k) = w$, where $x, y, z, w < 2^k$ and $x + yz \equiv w \mod 2^k$.

§Worst-case complexity

Constant time and additional memory.

§Panics

Panics if pow is greater than Self::WIDTH or if self, y, or z are greater than or equal to $2^k$.

§Examples

See here.

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type Output = u16

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impl ModPowerOf2AddMul for u32

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fn mod_power_of_2_add_mul(self, y: u32, z: u32, pow: u64) -> u32

Adds a number and the product of two other numbers, modulo a fourth number $2^k$. All three inputs must be already reduced modulo $2^k$.

$f(x, y, z, k) = w$, where $x, y, z, w < 2^k$ and $x + yz \equiv w \mod 2^k$.

§Worst-case complexity

Constant time and additional memory.

§Panics

Panics if pow is greater than Self::WIDTH or if self, y, or z are greater than or equal to $2^k$.

§Examples

See here.

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type Output = u32

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impl ModPowerOf2AddMul for u64

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fn mod_power_of_2_add_mul(self, y: u64, z: u64, pow: u64) -> u64

Adds a number and the product of two other numbers, modulo a fourth number $2^k$. All three inputs must be already reduced modulo $2^k$.

$f(x, y, z, k) = w$, where $x, y, z, w < 2^k$ and $x + yz \equiv w \mod 2^k$.

§Worst-case complexity

Constant time and additional memory.

§Panics

Panics if pow is greater than Self::WIDTH or if self, y, or z are greater than or equal to $2^k$.

§Examples

See here.

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type Output = u64

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impl ModPowerOf2AddMul for u128

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fn mod_power_of_2_add_mul(self, y: u128, z: u128, pow: u64) -> u128

Adds a number and the product of two other numbers, modulo a fourth number $2^k$. All three inputs must be already reduced modulo $2^k$.

$f(x, y, z, k) = w$, where $x, y, z, w < 2^k$ and $x + yz \equiv w \mod 2^k$.

§Worst-case complexity

Constant time and additional memory.

§Panics

Panics if pow is greater than Self::WIDTH or if self, y, or z are greater than or equal to $2^k$.

§Examples

See here.

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type Output = u128

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impl ModPowerOf2AddMul for usize

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fn mod_power_of_2_add_mul(self, y: usize, z: usize, pow: u64) -> usize

Adds a number and the product of two other numbers, modulo a fourth number $2^k$. All three inputs must be already reduced modulo $2^k$.

$f(x, y, z, k) = w$, where $x, y, z, w < 2^k$ and $x + yz \equiv w \mod 2^k$.

§Worst-case complexity

Constant time and additional memory.

§Panics

Panics if pow is greater than Self::WIDTH or if self, y, or z are greater than or equal to $2^k$.

§Examples

See here.

Source§

type Output = usize

Implementors§