Function Definitions and Calls with few args...

[atahabaki]

I see some functions defined with 7 arguments without default values, and called with 5 args. I'm converting this code to STM32 HAL library... Having difficulties with those function calls, any idea?

Example Situation:

MFRC522::StatusCode MFRC522::PCD_TransceiveData(byte *sendData,    ///< Pointer to the data to transfer to the FIFO.
                                                byte sendLen,    ///< Number of bytes to transfer to the FIFO.
                                                byte *backData,    ///< nullptr or pointer to buffer if data should be read back after executing the command.
                                                byte *backLen,    ///< In: Max number of bytes to write to *backData. Out: The number of bytes returned.
                                                byte *validBits,  ///< In/Out: The number of valid bits in the last byte. 0 for 8 valid bits. Default nullptr.
                                                byte rxAlign,    ///< In: Defines the bit position in backData[0] for the first bit received. Default 0.
                                                bool checkCRC    ///< In: True => The last two bytes of the response is assumed to be a CRC_A that must be validated.
                                               )

Defined with 7 argument, and called with 5 args...

  status    = PCD_TransceiveData(&command, 1, bufferATQA, bufferSize, &validBits);

[atahabaki]

OK, my bad, their default value defined in header file, so sorry to interrupt...

[atahabaki]

OK, my bad, their default value defined in header file, so sorry to interrupt...