Trait nalgebra::base::allocator::Allocator

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pub trait Allocator<T, R: Dim, C: Dim = U1>: Any + Sized {
    type Buffer: StorageMut<T, R, C> + IsContiguous + Clone + Debug;
    type BufferUninit: RawStorageMut<MaybeUninit<T>, R, C> + IsContiguous;

    // Required methods
    fn allocate_uninit(nrows: R, ncols: C) -> Self::BufferUninit;
    unsafe fn assume_init(uninit: Self::BufferUninit) -> Self::Buffer;
    fn allocate_from_iterator<I: IntoIterator<Item = T>>(
        nrows: R,
        ncols: C,
        iter: I
    ) -> Self::Buffer;

    // Provided method
    fn allocate_from_row_iterator<I: IntoIterator<Item = T>>(
        nrows: R,
        ncols: C,
        iter: I
    ) -> Self::Buffer { ... }
}
Expand description

A matrix allocator of a memory buffer that may contain R::to_usize() * C::to_usize() elements of type T.

An allocator is said to be: − static: if R and C both implement DimName. − dynamic: if either one (or both) of R or C is equal to Dyn.

Every allocator must be both static and dynamic. Though not all implementations may share the same Buffer type.

Required Associated Types§

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type Buffer: StorageMut<T, R, C> + IsContiguous + Clone + Debug

The type of buffer this allocator can instantiate.

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type BufferUninit: RawStorageMut<MaybeUninit<T>, R, C> + IsContiguous

The type of buffer with uninitialized components this allocator can instantiate.

Required Methods§

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fn allocate_uninit(nrows: R, ncols: C) -> Self::BufferUninit

Allocates a buffer with the given number of rows and columns without initializing its content.

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unsafe fn assume_init(uninit: Self::BufferUninit) -> Self::Buffer

Assumes a data buffer to be initialized.

Safety

The user must make sure that every single entry of the buffer has been initialized, or Undefined Behavior will immediately occur.

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fn allocate_from_iterator<I: IntoIterator<Item = T>>( nrows: R, ncols: C, iter: I ) -> Self::Buffer

Allocates a buffer initialized with the content of the given iterator.

Provided Methods§

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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.

Object Safety§

This trait is not object safe.

Implementors§