Struct MultiSet

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pub struct MultiSet<T> { /* private fields */ }
Expand description

同一要素を複数個挿入可能なSet

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impl<T: Ord + Eq + Clone> MultiSet<T>

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pub fn new() -> Self

MultiSet<T>を生成する。

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pub fn insert(&mut self, value: T)

valueを挿入する。

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pub fn remove(&mut self, value: T) -> bool

value一つだけ削除する。

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pub fn first(&self) -> Option<T>

先頭の要素を返す。

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pub fn last(&self) -> Option<T>

末尾の要素を返す。

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pub fn pop_last(&mut self) -> Option<T>

末尾の要素を一つだけ削除して返す。

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pub fn pop_first(&mut self) -> Option<T>

先頭の要素を一つだけ削除して返す。

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pub fn contains(&self, value: &T) -> bool

valueが含まれていれば、trueを返す。

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pub fn count(&self, value: &T) -> usize

valueが含まれている個数を返す。

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pub fn len(&self) -> usize

要素数を返す。

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pub fn is_empty(&self) -> bool

要素数が0ならば、trueを返す。

Trait Implementations§

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impl<T: Clone> Clone for MultiSet<T>

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fn clone(&self) -> MultiSet<T>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T: Debug> Debug for MultiSet<T>

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

Formats the value using the given formatter. Read more
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impl<T: Default> Default for MultiSet<T>

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fn default() -> MultiSet<T>

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<T> Freeze for MultiSet<T>

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impl<T> RefUnwindSafe for MultiSet<T>
where T: RefUnwindSafe,

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impl<T> Send for MultiSet<T>
where T: Send,

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impl<T> Sync for MultiSet<T>
where T: Sync,

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impl<T> Unpin for MultiSet<T>

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impl<T> UnwindSafe for MultiSet<T>
where T: RefUnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.