Enum BfgsError 

pub enum BfgsError {
    InvalidBounds {
        message: String,
    },
    InternalInvariant {
        message: String,
    },
    LineSearchFailed {
        last_solution: Box<BfgsSolution>,
        max_attempts: usize,
    },
    MaxIterationsReached {
        last_solution: Box<BfgsSolution>,
    },
    GradientIsNaN,
    StepSizeTooSmall,
}

An error type for clear diagnostics.

Variants

InvalidBounds

Fields

message: String

InternalInvariant

Fields

message: String

LineSearchFailed

Fields

last_solution: Box<BfgsSolution>

The best solution found before the line search failed.

max_attempts: usize

The number of attempts the line search made before failing.

MaxIterationsReached

Fields

last_solution: Box<BfgsSolution>

The best solution found before the iteration limit was reached.

GradientIsNaN

StepSizeTooSmall

Trait Implementations

impl Debug for BfgsError

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

Formats the value using the given formatter.

impl Display for BfgsError

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

Formats the value using the given formatter.

impl Error for BfgsError

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.