Enum ProblemError 

pub enum ProblemError {
    Dimension {
        field: &'static str,
        expected: usize,
        actual: usize,
    },
    NonFinite(&'static str),
    NonConvex(&'static str),
    NotSquare(&'static str),
    NotSymmetric(&'static str),
    InvalidBounds {
        index: usize,
        lower: f64,
        upper: f64,
    },
}

Input validation errors.

Variants

Dimension

A vector or matrix dimension is inconsistent.

Fields

field: &'static str

Name of the invalid field.

expected: usize

Expected dimension.

actual: usize

Actual dimension.

NonFinite(&'static str)

A coefficient that must be finite is NaN or infinite.

NonConvex(&'static str)

Convexity data is invalid.

NotSquare(&'static str)

A matrix expected to be square is not.

NotSymmetric(&'static str)

A matrix expected to be symmetric is not.

InvalidBounds

Lower and upper bounds are inconsistent.

Fields

index: usize

Variable index.

lower: f64

Supplied lower bound.

upper: f64

Supplied upper bound.

Trait Implementations

impl Clone for ProblemError

fn clone(&self) -> ProblemError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProblemError

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

Formats the value using the given formatter.

impl Display for ProblemError

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

Formats the value using the given formatter.

impl Error for ProblemError

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<ProblemError> for GeneratorError

fn from(source: ProblemError) -> Self

Converts to this type from the input type.

impl From<ProblemError> for PortfolioError

fn from(source: ProblemError) -> Self

Converts to this type from the input type.

impl From<ProblemError> for SolverError

fn from(source: ProblemError) -> Self

Converts to this type from the input type.

impl PartialEq for ProblemError

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

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ProblemError