Struct NegativeWeight 

pub struct NegativeWeight<W> {
    pub weight: W,
}

Indicates that an attempt to tabulate a value with negative weight has been made.

Fields

weight: W

The associated (negative) weight for the tabulated value.

Trait Implementations

impl<W: Debug> Debug for NegativeWeight<W>

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

Formats the value using the given formatter.

impl<W> Display for NegativeWeight<W>

where W: Debug,

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

Formats the value using the given formatter.

impl<W: Eq> Eq for NegativeWeight<W>

impl<W> Error for NegativeWeight<W>

where Self: Debug + Display,

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<W> From<NegativeWeight<W>> for Error

fn from(_: NegativeWeight<W>) -> Self

Converts to this type from the input type.

impl<W: PartialEq> PartialEq for NegativeWeight<W>

fn eq(&self, other: &NegativeWeight<W>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<W: PartialEq> StructuralPartialEq for NegativeWeight<W>