Struct ProbabilityOutOfRangeError 

pub struct ProbabilityOutOfRangeError(/* private fields */);

Error returned when attempting to create uniform crossover with invalid probability.

Uniform crossover requires a probability value between 0.0 and 1.0 inclusive. Values outside this range don’t make sense mathematically and will result in this error being returned from Crossover::uniform.

Examples

use fx_durable_ga::models::Crossover;

// These will return ProbabilityOutOfRangeError
assert!(Crossover::uniform(-0.1).is_err());
assert!(Crossover::uniform(1.5).is_err());

// These are valid
assert!(Crossover::uniform(0.0).is_ok());
assert!(Crossover::uniform(0.5).is_ok());
assert!(Crossover::uniform(1.0).is_ok());

Trait Implementations

impl Debug for ProbabilityOutOfRangeError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ProbabilityOutOfRangeError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for ProbabilityOutOfRangeError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.