Enum DefaultScalarsView 

pub enum DefaultScalarsView<'a> {
    F32(TypedTensorView<'a, f32, DynRank, Host>),
    F64(TypedTensorView<'a, f64, DynRank, Host>),
    I32(TypedTensorView<'a, i32, DynRank, Host>),
    I64(TypedTensorView<'a, i64, DynRank, Host>),
    Bool(TypedTensorView<'a, bool, DynRank, Host>),
    C32(TypedTensorView<'a, Complex32, DynRank, Host>),
    C64(TypedTensorView<'a, Complex64, DynRank, Host>),
}

Dynamic borrowed host tensor view.

Examples

use tenferro_tensor::{DefaultScalars, DType};

let tensor = DefaultScalars::from_vec_col_major(vec![1], vec![true])?;
let view = tensor.as_view();
assert_eq!(view.dtype(), DType::Bool);

let a = tensor.as_view();
let b = tensor.as_view();
let _ = a == b;

Variants

F32(TypedTensorView<'a, f32, DynRank, Host>)

F64(TypedTensorView<'a, f64, DynRank, Host>)

I32(TypedTensorView<'a, i32, DynRank, Host>)

I64(TypedTensorView<'a, i64, DynRank, Host>)

Bool(TypedTensorView<'a, bool, DynRank, Host>)

C32(TypedTensorView<'a, Complex32, DynRank, Host>)

C64(TypedTensorView<'a, Complex64, DynRank, Host>)

Implementations

impl<'a> DefaultScalarsView<'a>

pub fn dtype(&self) -> DType

Return this view’s dtype.

Examples

use tenferro_tensor::{DefaultScalars, DType};

let tensor = DefaultScalars::from_vec_col_major(vec![1], vec![1.0_f32])?;
assert_eq!(tensor.as_view().dtype(), DType::F32);

pub fn shape(&self) -> &[usize]

Borrow this view’s shape.

Examples

use tenferro_tensor::DefaultScalars;

let tensor = DefaultScalars::from_vec_col_major(vec![1], vec![1.0_f64])?;
assert_eq!(tensor.as_view().shape(), &[1]);

pub fn rank(&self) -> usize

Return the view rank.

Examples

use tenferro_tensor::DefaultScalars;

let tensor = DefaultScalars::from_vec_col_major(vec![1, 1], vec![1_i64])?;
assert_eq!(tensor.as_view().rank(), 2);

pub fn is_empty(&self) -> bool

Return whether this view has zero logical elements.

Examples

use tenferro_tensor::DefaultScalars;

let tensor = DefaultScalars::from_vec_col_major(vec![0], Vec::<f64>::new())?;
assert!(tensor.as_view().is_empty());

pub fn reshape_view(&self, shape: impl AsRef<[usize]>) -> Result<Self>

Return a metadata-only reshape of this dynamic view.

Examples

use tenferro_tensor::DefaultScalars;

let tensor = DefaultScalars::from_vec_col_major(vec![4], vec![1_i32, 2, 3, 4])?;
assert_eq!(tensor.as_view().reshape_view(vec![2, 2])?.shape(), &[2, 2]);

Errors

Returns a validation error carrying tenferro_tensor_core::ValidationError::ShapeMismatch when the element counts differ, tenferro_tensor_core::ValidationError::NonContiguousViewAsSlice when the view’s strides cannot express the new shape, or tenferro_tensor_core::ValidationError::IntegerOverflow when shape arithmetic overflows.

pub fn transpose_view(&self, axes: &[usize]) -> Result<Self>

Return a metadata-only transposed dynamic view with axes in the requested order.

Examples

use tenferro_tensor::DefaultScalars;

let tensor = DefaultScalars::from_vec_col_major(vec![1, 2], vec![1_i64, 2])?;
assert_eq!(tensor.as_view().transpose_view(&[1, 0])?.shape(), &[2, 1]);

Errors

Returns a validation error carrying tenferro_tensor_core::ValidationError::InvalidPermutationLength, tenferro_tensor_core::ValidationError::AxisOutOfBounds or tenferro_tensor_core::ValidationError::DuplicateAxis when axes is not a permutation of the view rank.

pub fn slice_view(&self, spec: &[StridedSliceSpec]) -> Result<Self>

Return a metadata-only positive-step slice of this dynamic view.

Examples

use tenferro_tensor::{DefaultScalars, StridedSliceSpec};

let tensor = DefaultScalars::from_vec_col_major(vec![3], vec![1_i64, 2, 3])?;
assert_eq!(
    tensor.as_view().slice_view(&[StridedSliceSpec::new(1, Some(3), 1)])?.shape(),
    &[2],
);

Errors

Returns crate::Error::Validation for a rank mismatch or invalid slice bounds or step.

Trait Implementations

impl<'a> Clone for DefaultScalarsView<'a>

fn clone(&self) -> DefaultScalarsView<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for DefaultScalarsView<'a>

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

Formats the value using the given formatter.