Trait CtSelect 

pub trait CtSelect: Sized {
    // Required method
    fn ct_select(&self, other: &Self, choice: Choice) -> Self;

    // Provided method
    fn ct_swap(&mut self, other: &mut Self, choice: Choice) { ... }
}

Constant-time selection: choose between two values based on a given Choice.

This crate provides built-in implementations for the following types:

• i8, i16, i32, i64, i128, isize
• u8, u16, u32, u64, u128, usize
• NonZeroI8, NonZeroI16, NonZeroI32, NonZeroI64, NonZeroI128
• NonZeroU8, NonZeroU16, NonZeroU32, NonZeroU64, NonZeroU128
• cmp::Ordering
• Choice
• [T; N] where T impls CtSelectArray, which the previously mentioned types all do, as well as any type which impls Clone + CtAssignSlice + CtSelect.

Required Methods

fn ct_select(&self, other: &Self, choice: Choice) -> Self

Select between self and other based on choice, returning a copy of the value.

Returns

• self if choice is Choice::FALSE.
• other if choice is Choice::TRUE.

Provided Methods

fn ct_swap(&mut self, other: &mut Self, choice: Choice)

Conditionally swap self and other if choice is Choice::TRUE.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T, const N: usize> CtSelect for [T; N]

where T: CtSelectArray<N>,

fn ct_select(&self, other: &Self, choice: Choice) -> Self

Implementors

impl<T: CtSelect> CtSelect for CtOption<T>

impl<T: CtSelectUsingCtAssign> CtSelect for T