Function libsqlite3_sys::sqlite3_rtree_geometry_callback

pub unsafe extern fn sqlite3_rtree_geometry_callback(db: *mut sqlite3,
                                                     zGeom: *const c_char,
                                                     xGeom: Option<unsafe extern fn(_: *mut sqlite3_rtree_geometry, _: c_int, _: *mut sqlite3_rtree_dbl, _: *mut c_int) -> c_int>,
                                                     pContext: *mut c_void)
                                                     -> c_int