Struct SymbolicPattern 

pub struct SymbolicPattern {
    pub nrows: usize,
    pub ncols: usize,
    pub row_ptr: Vec<usize>,
    pub col_indices: Vec<usize>,
}

The sparsity pattern (structure) of a sparse matrix in CSR layout.

Carries no numeric values – only the row pointers and the column indices. Column indices are sorted ascending within each row, matching HostCsr.

Fields

nrows: usize

Number of rows.

ncols: usize

Number of columns.

row_ptr: Vec<usize>

Row pointer array of length nrows + 1, monotone non-decreasing, with row_ptr[0] == 0 and row_ptr[nrows] == nnz.

col_indices: Vec<usize>

Column indices of length nnz, sorted ascending within each row and all in the range [0, ncols).

Implementations

impl SymbolicPattern

pub fn nnz(&self) -> usize

Number of structural non-zeros (row_ptr[nrows]).

pub fn row(&self, row: usize) -> &[usize]

Returns the sorted column indices of structural row row.

Panics

Panics if row >= nrows (the caller is responsible for the bound, as with ordinary slice indexing).

Trait Implementations

impl Clone for SymbolicPattern

fn clone(&self) -> SymbolicPattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SymbolicPattern

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

Formats the value using the given formatter.

impl Eq for SymbolicPattern

impl PartialEq for SymbolicPattern

fn eq(&self, other: &SymbolicPattern) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for SymbolicPattern