c++ - Sending special ascii char through usb converter rs232 -

i need send special chars through usb rs232 converter device.

b.cpp:

unsigned char message[] = "Àwlo~p";  int main(void) {     openport(port, 9600);    int = 0;  //   while (i < 2000) {    writeport(message);    char* readchar = readport();    cout <<"rr "<< static_cast<string>(readchar);   //     i++; //     sleep(5); // }  closeport();  return exit_success; 

}

my writeport function:

void writeport(unsigned char* message) { int e;  (int = 0; < 7; i++) {    e = message[i];    printf("out: %d", e) ;     write(tty_fd, &message[i], 6);     usleep(10);  } } 

beacose first sign out of range normal char "À" 192 see in printf it's divide 2 bytes.

printf output:

 out: 195 out: 128 out: 119 out: 76 out: 79 out: 126 out:80 

how can send that's specyfic char?

putting non-ascii characters c source file risky. if want specific byte sequence, write out array of numbers:

unsigned char message[] = { 192, 119, 76, 79, 126, 80 }; 

or string hexadecimal escapes:

unsigned char message[] = "\xc0wlo~p";