Function flann_sys::flann_free_index

pub unsafe extern "C" fn flann_free_index(
    index_id: flann_index_t, 
    flann_params: *mut FLANNParameters
) -> c_int

Deletes an index and releases the memory used by it.

Params: index_id = the index (constructed previously using flann_build_index). flann_params = generic flann parameters

Returns: zero or a number <0 for error