Function save_to_matrix_market

pub fn save_to_matrix_market<T, S, W>(
    w: W,
    sparse_matrix: &S,
) -> Result<(), Error>
where
    T: MatrixMarketScalar,
    S: MatrixMarketExport<T>,
    W: Write,

Save a sparse matrix to an std::io::Write instance.

This is the most general save functionality. See save_to_matrix_market_file and save_to_matrix_market_str for higher-level functionality.