Enum supermemo2::Quality

pub enum Quality {
    Zero,
    One,
    Two,
    Three,
    Four,
    Five,
}

Enum representing the quality of an answer from 0 to 5.

• 0 - complete blackout.
• 1 - incorrect response; the correct one remembered
• 2 - incorrect response; where the correct one seemed easy to recall
• 3 - correct response recalled with serious difficulty
• 4 - correct response after a hesitation
• 5 - perfect response

Variants

Zero

One

Two

Three

Four

Five

Methods

impl Quality

pub fn from(q: usize) -> Result<Self, Error>

Create a Quality object from a number between 0 and 5.

Trait Implementations

impl<'_> From<&'_ Quality> for f64

fn from(q: &Quality) -> Self

Performs the conversion.

impl Eq for Quality

impl Ord for Quality

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialEq<Quality> for Quality

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<Quality> for Quality

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use] fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use] fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use] fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use] fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.