Enum LineSearchError 

pub enum LineSearchError {
    NotDescentDirection,
    BracketCollapsed,
    MaxIterations,
}

Errors that can occur during line search.

Variants

NotDescentDirection

The search direction is not a descent direction.

BracketCollapsed

Zoom bracket collapsed to zero width.

MaxIterations

Maximum iterations reached without satisfying Wolfe conditions.

Trait Implementations

impl Clone for LineSearchError

fn clone(&self) -> LineSearchError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LineSearchError

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

Formats the value using the given formatter.

impl Display for LineSearchError

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

Formats the value using the given formatter.

impl Error for LineSearchError

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.

impl From<LineSearchError> for NumraError

fn from(e: LineSearchError) -> Self

Converts to this type from the input type.