how to use getch in niosII

[Altera_Forum]

hi i want to ask what is the header file to add for using getch in niosII. I had try to add conio.h but it say that No such file or directory.  

thx for helping:)

[Altera_Forum]

getch() and <conio.h> aren't standard C. You can use getchar() (http://sourceware.org/newlib/libc.html#getchar) instead (that you'll find in <stdio.h>)

[Altera_Forum]

but getchar is different function with getch o

[Altera_Forum]

What you want to achieve with this getch()? 

How does the getchar() gon't suite your need?  May be you can post your code here?

[Altera_Forum]

Yes, now i trying to use getchar() but there still some problem with it because i using "string" to do it but when i change to "int" or "char" it can be done. The problem is when i using string the password that i type out is correct (i already prove by typing: printf (%s, &password) ) but it still cant be match with the password that i had set. I making a program that need to type password to log in, when typing password those character will become ***, by the way i still dun know the programming change to *** is correct or not. Thx for helping 

 my coding show as below:# include <stdio.h># include <stdlib.h># include <unistd.h># include <string.h>  void one(); void two(); int login ;  int user ; char password[10]; int i = 0; char c;   int main () {  while(1){  printf ("---------------------------\n");  printf (" Main Menu\n");  printf ("----------------------------\n");  printf (" 1.Admin login\n 2.User login\n");  scanf("%i", &login);  if (login == 1)  two();  if (login == 2)  printf ("Display\n");    } return(0); }  void one() {   menu:  printf ("---------------------------\n");  printf (" User Menu\n");  printf ("----------------------------\n");  printf (" 1.Check User\n 2.Delete User\n 0.Main Menu\n");  scanf("%i", &user);  if (user == 1)  printf ("CHECK\n");  else if (user == 2)  {   printf ("DELETE\n");   }    else if (user == 0)  main ();    else if (user != 1,2,0)  {  printf ("Wrong key please retry\n");  goto menu;  }    else   NULL;  }  void two() {  printf ("Please enter password: ");  enter:  scanf("%s", &password);  {   while(i<5){  c = getchar();    password = c;  printf("*");  i++;  }  getchar();  i=0;  while (i<5)  {  printf("%c",pass);  i++;   }  getchar();  }  if (password == 'obc')  {  one();   }    else if (password != 'obc')   {  printf ("Wrong password, please retype ");  goto enter;  }    else   NULL;  }  ps: previously those getchar i use getch for it