Struct CsrMatrixBuilder 

pub struct CsrMatrixBuilder<'a, T> { /* private fields */ }

A builder for constructing CSR matrices within a CsrMatrixSet.

This builder allows efficient construction of CSR matrices that will be stored in a matrix set. When the builder is dropped, the matrix is automatically added to the parent set.

Examples

use algebra_sparse::CsrMatrixSet;

let mut set = CsrMatrixSet::default();
let mut builder = set.new_matrix(3, 1e-10);

let mut row_builder = builder.new_row();
row_builder.push(0, 1.0);
row_builder.push(2, 2.0);
// Matrix is automatically added to set when builder is dropped

Implementations

impl<T: Real> CsrMatrixBuilder<'_, T>

pub fn ncol(&self) -> usize

Returns the number of columns for the matrix being built.

pub fn new_row(&mut self) -> CsVecBuilder<'_, T>

Creates a new row builder for this matrix.

The returned builder can be used to add non-zero elements to the next row.

Returns

A CsVecBuilder for constructing a sparse row

Trait Implementations

impl<T> Drop for CsrMatrixBuilder<'_, T>

Automatically finalizes the CSR matrix and adds it to the set when the builder is dropped.

This implementation ensures that the matrix is properly added to the parent set when the builder goes out of scope, including updating all necessary metadata.

fn drop(&mut self)

Executes the destructor for this type.