Struct b4s::SearchError

pub struct SearchError(pub Range<usize>);

Error returned in case of a failed search.

Thin wrapper for Range<usize>, required to implement Error, achieving a useful API.

Tuple Fields

0: Range<usize>

Location of the last unsuccessful comparison.

This is not the location where the needle could be inserted. That location is either to the left or right of this location, depending on how comparison goes. As this error is not particularly actionable at runtime, the exact location (left, right) is not reported, saving computation at runtime and affording a simpler implementation.

Trait Implementations

impl Clone for SearchError

fn clone(&self) -> SearchError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SearchError

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

Formats the value using the given formatter.

impl Display for SearchError

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

Formats the value using the given formatter.

impl Error for SearchError

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

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, demand: &mut Demand<'a>)

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

Provides type based access to context intended for error reports.

impl Hash for SearchError

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq<SearchError> for SearchError

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Eq for SearchError

impl StructuralEq for SearchError

impl StructuralPartialEq for SearchError