Struct nalgebra::core::MatrixVec

#[repr(C)]
pub struct MatrixVec<N, R: Dim, C: Dim> { /* fields omitted */ }

A Vec-based matrix data storage. It may be dynamically-sized.

Methods

impl<N, R: Dim, C: Dim> MatrixVec<N, R, C>

fn new(nrows: R, ncols: C, data: Vec<N>) -> MatrixVec<N, R, C>

Creates a new dynamic matrix data storage from the given vector and shape.

fn data(&self) -> &Vec<N>

The underlying data storage.

unsafe fn data_mut(&mut self) -> &mut Vec<N>

The underlying mutable data storage.

This is unsafe because this may cause UB if the vector is modified by the user.

unsafe fn resize(self, sz: usize) -> Vec<N>

Resizes the undelying mutable data storage and unrwaps it.

If sz is larger than the current size, additional elements are uninitialized. If sz is smaller than the current size, additional elements are trucated.

Methods from Deref<Target = Vec<N>>

fn capacity(&self) -> usize

Returns the number of elements the vector can hold without reallocating.

Examples

let vec: Vec<i32> = Vec::with_capacity(10);
assert_eq!(vec.capacity(), 10);

fn into_boxed_slice(self) -> Box<[T]>

Converts the vector into Box<[T]>.

Note that this will drop any excess capacity. Calling this and converting back to a vector with into_vec is equivalent to calling shrink_to_fit.

Examples

let v = vec![1, 2, 3];

let slice = v.into_boxed_slice();

Any excess capacity is removed:

let mut vec = Vec::with_capacity(10);
vec.extend([1, 2, 3].iter().cloned());

assert_eq!(vec.capacity(), 10);
let slice = vec.into_boxed_slice();
assert_eq!(slice.into_vec().capacity(), 3);

fn as_slice(&self) -> &[T]

Extracts a slice containing the entire vector.

Equivalent to &s[..].

Examples

use std::io::{self, Write};
let buffer = vec![1, 2, 3, 5, 8];
io::sink().write(buffer.as_slice()).unwrap();

fn len(&self) -> usize

Returns the number of elements in the vector, also referred to as its 'length'.

Examples

let a = vec![1, 2, 3];
assert_eq!(a.len(), 3);

fn is_empty(&self) -> bool

Returns true if the vector contains no elements.

Examples

let mut v = Vec::new();
assert!(v.is_empty());

v.push(1);
assert!(!v.is_empty());

Trait Implementations

impl<N: Eq, R: Eq + Dim, C: Eq + Dim> Eq for MatrixVec<N, R, C>

impl<N: Debug, R: Debug + Dim, C: Debug + Dim> Debug for MatrixVec<N, R, C>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<N: Clone, R: Clone + Dim, C: Clone + Dim> Clone for MatrixVec<N, R, C>

fn clone(&self) -> MatrixVec<N, R, C>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<N: PartialEq, R: PartialEq + Dim, C: PartialEq + Dim> PartialEq for MatrixVec<N, R, C>

fn eq(&self, __arg_0: &MatrixVec<N, R, C>) -> bool

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

fn ne(&self, __arg_0: &MatrixVec<N, R, C>) -> bool

This method tests for !=.

impl<N, R: Dim, C: Dim> Deref for MatrixVec<N, R, C>

type Target = Vec<N>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<N: Scalar, C: Dim> Storage<N, Dynamic, C> for MatrixVec<N, Dynamic, C> where
    DefaultAllocator: Allocator<N, Dynamic, C, Buffer = Self>, 

type RStride = U1

The static stride of this storage's rows.

type CStride = Dynamic

The static stride of this storage's columns.

fn ptr(&self) -> *const N

The matrix data pointer.

fn shape(&self) -> (Dynamic, C)

The dimension of the matrix at run-time. Arr length of zero indicates the additive identity element of any dimension. Must be equal to Self::dimension() if it is not None.

fn strides(&self) -> (Self::RStride, Self::CStride)

The spacing between concecutive row elements and consecutive column elements.

fn is_contiguous(&self) -> bool

Indicates whether this data buffer stores its elements contiguously.

fn into_owned(self) -> Owned<N, Dynamic, C> where
    DefaultAllocator: Allocator<N, Dynamic, C>, 

Builds a matrix data storage that does not contain any reference.

fn clone_owned(&self) -> Owned<N, Dynamic, C> where
    DefaultAllocator: Allocator<N, Dynamic, C>, 

Clones this data storage to one that does not contain any reference.

fn as_slice(&self) -> &[N]

Retrieves the data buffer as a contiguous slice.

fn linear_index(&self, irow: usize, icol: usize) -> usize

Compute the index corresponding to the irow-th row and icol-th column of this matrix. The index must be such that the following holds:

unsafe fn get_address_unchecked_linear(&self, i: usize) -> *const N

Gets the address of the i-th matrix component without performing bound-checking.

unsafe fn get_address_unchecked(&self, irow: usize, icol: usize) -> *const N

Gets the address of the i-th matrix component without performing bound-checking.

unsafe fn get_unchecked_linear(&self, i: usize) -> &N

Retrieves a reference to the i-th element without bound-checking.

unsafe fn get_unchecked(&self, irow: usize, icol: usize) -> &N

Retrieves a reference to the i-th element without bound-checking.

impl<N: Scalar, R: DimName> Storage<N, R, Dynamic> for MatrixVec<N, R, Dynamic> where
    DefaultAllocator: Allocator<N, R, Dynamic, Buffer = Self>, 

type RStride = U1

The static stride of this storage's rows.

type CStride = R

The static stride of this storage's columns.

fn ptr(&self) -> *const N

The matrix data pointer.

fn shape(&self) -> (R, Dynamic)

The dimension of the matrix at run-time. Arr length of zero indicates the additive identity element of any dimension. Must be equal to Self::dimension() if it is not None.

fn strides(&self) -> (Self::RStride, Self::CStride)

The spacing between concecutive row elements and consecutive column elements.

fn is_contiguous(&self) -> bool

Indicates whether this data buffer stores its elements contiguously.

fn into_owned(self) -> Owned<N, R, Dynamic> where
    DefaultAllocator: Allocator<N, R, Dynamic>, 

Builds a matrix data storage that does not contain any reference.

fn clone_owned(&self) -> Owned<N, R, Dynamic> where
    DefaultAllocator: Allocator<N, R, Dynamic>, 

Clones this data storage to one that does not contain any reference.

fn as_slice(&self) -> &[N]

Retrieves the data buffer as a contiguous slice.

fn linear_index(&self, irow: usize, icol: usize) -> usize

Compute the index corresponding to the irow-th row and icol-th column of this matrix. The index must be such that the following holds:

unsafe fn get_address_unchecked_linear(&self, i: usize) -> *const N

Gets the address of the i-th matrix component without performing bound-checking.

unsafe fn get_address_unchecked(&self, irow: usize, icol: usize) -> *const N

Gets the address of the i-th matrix component without performing bound-checking.

unsafe fn get_unchecked_linear(&self, i: usize) -> &N

Retrieves a reference to the i-th element without bound-checking.

unsafe fn get_unchecked(&self, irow: usize, icol: usize) -> &N

Retrieves a reference to the i-th element without bound-checking.

impl<N: Scalar, C: Dim> StorageMut<N, Dynamic, C> for MatrixVec<N, Dynamic, C> where
    DefaultAllocator: Allocator<N, Dynamic, C, Buffer = Self>, 

fn ptr_mut(&mut self) -> *mut N

The matrix mutable data pointer.

fn as_mut_slice(&mut self) -> &mut [N]

Retrieves the mutable data buffer as a contiguous slice.

unsafe fn get_address_unchecked_linear_mut(&mut self, i: usize) -> *mut N

Gets the mutable address of the i-th matrix component without performing bound-checking.

unsafe fn get_address_unchecked_mut(
    &mut self,
    irow: usize,
    icol: usize
) -> *mut N

Gets the mutable address of the i-th matrix component without performing bound-checking.

unsafe fn get_unchecked_linear_mut(&mut self, i: usize) -> &mut N

Retrieves a mutable reference to the i-th element without bound-checking.

unsafe fn get_unchecked_mut(&mut self, irow: usize, icol: usize) -> &mut N

Retrieves a mutable reference to the element at (irow, icol) without bound-checking.

unsafe fn swap_unchecked_linear(&mut self, i1: usize, i2: usize)

Swaps two elements using their linear index without bound-checking.

unsafe fn swap_unchecked(
    &mut self,
    row_col1: (usize, usize),
    row_col2: (usize, usize)
)

Swaps two elements without bound-checking.

impl<N: Scalar, C: Dim> ContiguousStorage<N, Dynamic, C> for MatrixVec<N, Dynamic, C> where
    DefaultAllocator: Allocator<N, Dynamic, C, Buffer = Self>, 

impl<N: Scalar, C: Dim> ContiguousStorageMut<N, Dynamic, C> for MatrixVec<N, Dynamic, C> where
    DefaultAllocator: Allocator<N, Dynamic, C, Buffer = Self>, 

impl<N: Scalar, R: DimName> StorageMut<N, R, Dynamic> for MatrixVec<N, R, Dynamic> where
    DefaultAllocator: Allocator<N, R, Dynamic, Buffer = Self>, 

fn ptr_mut(&mut self) -> *mut N

The matrix mutable data pointer.

fn as_mut_slice(&mut self) -> &mut [N]

Retrieves the mutable data buffer as a contiguous slice.

unsafe fn get_address_unchecked_linear_mut(&mut self, i: usize) -> *mut N

Gets the mutable address of the i-th matrix component without performing bound-checking.

unsafe fn get_address_unchecked_mut(
    &mut self,
    irow: usize,
    icol: usize
) -> *mut N

Gets the mutable address of the i-th matrix component without performing bound-checking.

unsafe fn get_unchecked_linear_mut(&mut self, i: usize) -> &mut N

Retrieves a mutable reference to the i-th element without bound-checking.

unsafe fn get_unchecked_mut(&mut self, irow: usize, icol: usize) -> &mut N

Retrieves a mutable reference to the element at (irow, icol) without bound-checking.

unsafe fn swap_unchecked_linear(&mut self, i1: usize, i2: usize)

Swaps two elements using their linear index without bound-checking.

unsafe fn swap_unchecked(
    &mut self,
    row_col1: (usize, usize),
    row_col2: (usize, usize)
)

Swaps two elements without bound-checking.

impl<N: Scalar, R: DimName> ContiguousStorage<N, R, Dynamic> for MatrixVec<N, R, Dynamic> where
    DefaultAllocator: Allocator<N, R, Dynamic, Buffer = Self>, 

impl<N: Scalar, R: DimName> ContiguousStorageMut<N, R, Dynamic> for MatrixVec<N, R, Dynamic> where
    DefaultAllocator: Allocator<N, R, Dynamic, Buffer = Self>,