Function sprs::prod::csr_mul_csr

pub fn csr_mul_csr<N, I, Mat1, Mat2>(
    lhs: &Mat1, 
    rhs: &Mat2, 
    workspace: &mut [N]
) -> CsMatI<N, I> where
    N: Num + Copy,
    I: SpIndex,
    Mat1: SpMatView<N, I>,
    Mat2: SpMatView<N, I>, 

Perform a matrix multiplication for matrices sharing the same storage order.

For brevity, this method assumes a CSR storage order, transposition should be used for the CSC-CSC case. Accumulates the result line by line.

lhs: left hand size matrix rhs: right hand size matrix workspace: used to accumulate the line values. Should be of length rhs.cols()