kbhit() in mac

hi ppl. I am new to cpp in mac. I got error when I used kbhit() in my program. I used #include but got error too, so I searched and test with #include but error is still remained. so plz help me. thanks in advance.

From stackoverflow

• kbhit() is non-standard. In fact, I don't believe there is a standard function for detecting keyboard input. The best you can do is read a character from stdin using e.g. fgetc, and hope it's not redirected from somewhere else.

• No idea if this would work on Mac, but here's some code that I've used to get a single keypress on Linux.

  int mygetch() {
      char ch;
      int error;
      static struct termios Otty, Ntty;
  
      fflush(stdout);
      tcgetattr(0, &Otty);
      Ntty = Otty;
  
      Ntty.c_iflag  =  0;  /* input mode  */
      Ntty.c_oflag  =  0;  /* output mode  */
      Ntty.c_lflag &= ~ICANON; /* line settings  */
  
  #if 1
      /* disable echoing the char as it is typed */
      Ntty.c_lflag &= ~ECHO; /* disable echo  */
  #else
      /* enable echoing the char as it is typed */
      Ntty.c_lflag |=  ECHO; /* enable echo   */
  #endif
  
      Ntty.c_cc[VMIN]  = CMIN; /* minimum chars to wait for */
      Ntty.c_cc[VTIME] = CTIME; /* minimum wait time */
  
  #if 1
      /*
      * use this to flush the input buffer before blocking for new input
      */
      #define FLAG TCSAFLUSH
  #else
      /*
      * use this to return a char from the current input buffer, or block if
      * no input is waiting.
      */
      #define FLAG TCSANOW
  
  #endif
  
      if ((error = tcsetattr(0, FLAG, &Ntty)) == 0) {
       error  = read(0, &ch, 1 );       /* get char from stdin */
       error += tcsetattr(0, FLAG, &Otty);   /* restore old settings */
      }
  
      return (error == 1 ? (int) ch : -1 );
  }
  

• See my answer to a related question at http://stackoverflow.com/questions/448944/c-non-blocking-keyboard-input#448982