Retrieve the signed_transaction.context_free_data[index].
Retrieve the signed_transaction.context_free_data[index]
Parameters
-
index- the index of the context_free_data entry to retrieve -
buff- output buff of the context_free_data entry -
size- amount of context_free_data[index] to retrieve into buff, 0 to report required size
Returns
size copied, or context_free_data[index].size() if 0 passed for size, or -1 if index not valid