Function pio_dc_operators_branch_flow_matrix 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pio_dc_operators_branch_flow_matrix(
    operators: *const PioDcOperators,
    error: *mut *mut PioError,
) -> *mut PioSparseMatrix

The branch flow matrix Bf = diag(b) A, branches by buses.

Safety

Pointers and handles must satisfy the crate-level safety requirements.