Enum AddRes

pub enum AddRes {
    Ok(Option<usize>),
    ZeroLen,
}

Addition result enumeration.

Variants

Ok(Option<usize>)

Addition accomplished. Optionally carries previous value, based on its existence.

ZeroLen

Attempt to add zero occurrent.

Implementations

impl AddRes

pub const fn is_ok(&self) -> bool

Returns true only for AddRes::Ok(_).

pub const fn is_ok_some(&self) -> bool

Returns true only for AddRes::Ok(Some(_)).

pub const fn uproot_ok_some(&self) -> usize

Returns usize of AddRes::Ok(Some(usize)) or panics if:

• not that variant
• Option<usize> is None

pub const unsafe fn uproot_ok_some_unchecked(&self) -> usize

Returns usize of AddRes::Ok(Some(usize)) and does not panic (UB) if:

• not that variant
• Option<usize> is None

Check with std::hint::unreachable_unchecked for more information.

Trait Implementations

impl Debug for AddRes

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

Formats the value using the given formatter.

impl PartialEq for AddRes

fn eq(&self, other: &AddRes) -> 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 Eq for AddRes

impl StructuralPartialEq for AddRes