Function pio_calculation_solution_instance 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pio_calculation_solution_instance(
    solution: *const PioCalculationSolution,
    error: *mut *mut PioError,
) -> *mut PioCalculationInstance

Return an owner-rooted view of the exact calculation instance retained by a calculation solution.

Safety

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