Function sprs::binop::csmat_binop_same_storage_raw

pub fn csmat_binop_same_storage_raw<N, I, F>(
    lhs: CsMatViewI<N, I>, 
    rhs: CsMatViewI<N, I>, 
    binop: F, 
    out_indptr: &mut [I], 
    out_indices: &mut [I], 
    out_data: &mut [N]
) -> usize where
    N: Num,
    I: SpIndex,
    F: Fn(&N, &N) -> N, 

Raw implementation of scalar binary operation for compressed sparse matrices sharing the same storage. The output arrays are assumed to be preallocated

Returns the nnz count