DefaultAllocator in nalgebra::base::default_allocator - Rust
Description: An allocator based on [`ArrayStorage`] and [`VecStorage`] for statically-sized and dynamically-sized matrices respectively.
Keywords: rust, rustlang, rust-lang, DefaultAllocator

# Struct nalgebra::base::default_allocator::DefaultAllocator

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    pub struct DefaultAllocator;

Expand description

An allocator based on `ArrayStorage` and `VecStorage` for statically-sized and dynamically-sized matrices respectively.

## Trait Implementations§

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### impl<T: Scalar, const R: usize, const C: usize> Allocator<T, Const<R>, Const<C>> for DefaultAllocator

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#### type Buffer = ArrayStorage<T, R, C>

The type of buffer this allocator can instanciate.
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#### type BufferUninit = ArrayStorage<MaybeUninit<T>, R, C>

The type of buffer with uninitialized components this allocator can instanciate.
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#### fn allocate_uninit(
_: Const<R>,
_: Const<C>
) -> ArrayStorage<MaybeUninit<T>, R, C>

Allocates a buffer with the given number of rows and columns without initializing its content.
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#### unsafe fn assume_init(
uninit: ArrayStorage<MaybeUninit<T>, R, C>
) -> ArrayStorage<T, R, C>

Assumes a data buffer to be initialized. Read more
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#### fn allocate_from_iterator<I: IntoIterator<Item = T>>(
nrows: Const<R>,
ncols: Const<C>,
iter: I
) -> Self::Buffer

Allocates a buffer initialized with the content of the given iterator.
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#### fn allocate_from_row_iterator<I: IntoIterator<Item = T>>(
nrows: R,
ncols: C,
iter: I
) -> Self::Buffer

Allocates a buffer initialized with the content of the given row-major order iterator.
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### impl<T: Scalar, C: Dim> Allocator<T, Dyn, C> for DefaultAllocator

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#### type Buffer = VecStorage<T, Dyn, C>

The type of buffer this allocator can instanciate.
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#### type BufferUninit = VecStorage<MaybeUninit<T>, Dyn, C>

The type of buffer with uninitialized components this allocator can instanciate.
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#### fn allocate_uninit(nrows: Dyn, ncols: C) -> VecStorage<MaybeUninit<T>, Dyn, C>

Allocates a buffer with the given number of rows and columns without initializing its content.
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#### unsafe fn assume_init(
uninit: VecStorage<MaybeUninit<T>, Dyn, C>
) -> VecStorage<T, Dyn, C>

Assumes a data buffer to be initialized. Read more
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#### fn allocate_from_iterator<I: IntoIterator<Item = T>>(
nrows: Dyn,
ncols: C,
iter: I
) -> Self::Buffer

Allocates a buffer initialized with the content of the given iterator.
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#### fn allocate_from_row_iterator<I: IntoIterator<Item = T>>(
nrows: R,
ncols: C,
iter: I
) -> Self::Buffer

Allocates a buffer initialized with the content of the given row-major order iterator.
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### impl<T: Scalar, R: DimName> Allocator<T, R, Dyn> for DefaultAllocator

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#### type Buffer = VecStorage<T, R, Dyn>

The type of buffer this allocator can instanciate.
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#### type BufferUninit = VecStorage<MaybeUninit<T>, R, Dyn>

The type of buffer with uninitialized components this allocator can instanciate.
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#### fn allocate_uninit(nrows: R, ncols: Dyn) -> VecStorage<MaybeUninit<T>, R, Dyn>

Allocates a buffer with the given number of rows and columns without initializing its content.
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#### unsafe fn assume_init(
uninit: VecStorage<MaybeUninit<T>, R, Dyn>
) -> VecStorage<T, R, Dyn>

Assumes a data buffer to be initialized. Read more
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#### fn allocate_from_iterator<I: IntoIterator<Item = T>>(
nrows: R,
ncols: Dyn,
iter: I
) -> Self::Buffer

Allocates a buffer initialized with the content of the given iterator.
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#### fn allocate_from_row_iterator<I: IntoIterator<Item = T>>(
nrows: R,
ncols: C,
iter: I
) -> Self::Buffer

Allocates a buffer initialized with the content of the given row-major order iterator.
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### impl Clone for DefaultAllocator

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#### fn clone(&self) -> DefaultAllocator

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 Debug for DefaultAllocator

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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: Scalar, CTo, const RFROM: usize, const CFROM: usize> Reallocator<T, Const<RFROM>, Const<CFROM>, Dyn, CTo> for DefaultAllocator where
CTo: Dim,

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#### unsafe fn reallocate_copy(
rto: Dyn,
cto: CTo,
buf: ArrayStorage<T, RFROM, CFROM>
) -> VecStorage<MaybeUninit<T>, Dyn, CTo>

Reallocates a buffer of shape `(RTo, CTo)`, possibly reusing a previously allocated buffer `buf`. Data stored by `buf` are linearly copied to the output: Read more
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### impl<T: Scalar, RTo, const RFROM: usize, const CFROM: usize> Reallocator<T, Const<RFROM>, Const<CFROM>, RTo, Dyn> for DefaultAllocator where
RTo: DimName,

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#### unsafe fn reallocate_copy(
rto: RTo,
cto: Dyn,
buf: ArrayStorage<T, RFROM, CFROM>
) -> VecStorage<MaybeUninit<T>, RTo, Dyn>

Reallocates a buffer of shape `(RTo, CTo)`, possibly reusing a previously allocated buffer `buf`. Data stored by `buf` are linearly copied to the output: Read more
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### impl<T: Scalar, CFrom: Dim, CTo: Dim> Reallocator<T, Dyn, CFrom, Dyn, CTo> for DefaultAllocator

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#### unsafe fn reallocate_copy(
rto: Dyn,
cto: CTo,
buf: VecStorage<T, Dyn, CFrom>
) -> VecStorage<MaybeUninit<T>, Dyn, CTo>

Reallocates a buffer of shape `(RTo, CTo)`, possibly reusing a previously allocated buffer `buf`. Data stored by `buf` are linearly copied to the output: Read more
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### impl<T: Scalar, CFrom: Dim, RTo: DimName> Reallocator<T, Dyn, CFrom, RTo, Dyn> for DefaultAllocator

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#### unsafe fn reallocate_copy(
rto: RTo,
cto: Dyn,
buf: VecStorage<T, Dyn, CFrom>
) -> VecStorage<MaybeUninit<T>, RTo, Dyn>

Reallocates a buffer of shape `(RTo, CTo)`, possibly reusing a previously allocated buffer `buf`. Data stored by `buf` are linearly copied to the output: Read more
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### impl<T: Scalar, RFrom, CFrom, const RTO: usize, const CTO: usize> Reallocator<T, RFrom, CFrom, Const<RTO>, Const<CTO>> for DefaultAllocator where
RFrom: Dim,
CFrom: Dim,
Self: Allocator<T, RFrom, CFrom>,

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#### unsafe fn reallocate_copy(
rto: Const<RTO>,
cto: Const<CTO>,
buf: <Self as Allocator<T, RFrom, CFrom>>::Buffer
) -> ArrayStorage<MaybeUninit<T>, RTO, CTO>

Reallocates a buffer of shape `(RTo, CTo)`, possibly reusing a previously allocated buffer `buf`. Data stored by `buf` are linearly copied to the output: Read more
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### impl<T: Scalar, RFrom: DimName, CTo: Dim> Reallocator<T, RFrom, Dyn, Dyn, CTo> for DefaultAllocator

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#### unsafe fn reallocate_copy(
rto: Dyn,
cto: CTo,
buf: VecStorage<T, RFrom, Dyn>
) -> VecStorage<MaybeUninit<T>, Dyn, CTo>

Reallocates a buffer of shape `(RTo, CTo)`, possibly reusing a previously allocated buffer `buf`. Data stored by `buf` are linearly copied to the output: Read more
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### impl<T: Scalar, RFrom: DimName, RTo: DimName> Reallocator<T, RFrom, Dyn, RTo, Dyn> for DefaultAllocator

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#### unsafe fn reallocate_copy(
rto: RTo,
cto: Dyn,
buf: VecStorage<T, RFrom, Dyn>
) -> VecStorage<MaybeUninit<T>, RTo, Dyn>

Reallocates a buffer of shape `(RTo, CTo)`, possibly reusing a previously allocated buffer `buf`. Data stored by `buf` are linearly copied to the output: Read more
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### impl Copy for DefaultAllocator

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### impl<T, R1, R2, C1, C2> SameShapeAllocator<T, R1, C1, R2, C2> for DefaultAllocator where
R1: Dim,
R2: Dim,
C1: Dim,
C2: Dim,
DefaultAllocator: Allocator<T, R1, C1> + Allocator<T, SameShapeR<R1, R2>, SameShapeC<C1, C2>>,
ShapeConstraint: SameNumberOfRows<R1, R2> + SameNumberOfColumns<C1, C2>,

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### impl<T, R1, R2> SameShapeVectorAllocator<T, R1, R2> for DefaultAllocator where
R1: Dim,
R2: Dim,
DefaultAllocator: Allocator<T, R1, U1> + Allocator<T, SameShapeR<R1, R2>>,
ShapeConstraint: SameNumberOfRows<R1, R2>,

## Auto Trait Implementations§

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### impl RefUnwindSafe for DefaultAllocator

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### impl Send for DefaultAllocator

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### impl Sync for DefaultAllocator

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### impl Unpin for DefaultAllocator

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### impl UnwindSafe for DefaultAllocator

## Blanket Implementations§

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### impl<T> Any for Twhere
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 Twhere
T: ?Sized,

const: unstable · source§

#### fn borrow(&self) -> &T

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

const: unstable · source§

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

Mutably borrows from an owned value. Read more
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### impl<T> From<T> for T

const: unstable · source§

#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T, U> Into<U> for Twhere
U: From<T>,

const: unstable · source§

#### 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> Same<T> for T

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#### type Output = T

Should always be `Self`
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### impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,

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#### fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct `self` from the equivalent element of its superset. Read more
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#### fn is_in_subset(&self) -> bool

Checks if `self` is actually part of its subset `T` (and can be converted to it).
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#### fn to_subset_unchecked(&self) -> SS

Use with care! Same as `self.to_subset` but without any property checks. Always succeeds.
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#### fn from_subset(element: &SS) -> SP

The inclusion map: converts `self` to the equivalent element of its superset.
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### impl<T> ToOwned for Twhere
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 Twhere
U: Into<T>,

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#### type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

#### 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 Twhere
U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.