Thread: need assistance

You didn't say what errors/warning you received!!
Next time include it in your post if there are any.

ohh hehe sorry but can you still tell me why i needed to add the conio header file for future ref

Well, when you use 'getch()' or 'getche()' and many other functions, you'll need to include 'conio.h' in your code.


Analogy:
I can't know/understand how an engine works unless i have a maunual to explain it to me.


In the same way, your compiler can't use 'getche()' unless you
tell it what it is and how it works. All that stuff is in 'conio.h', so you just include it in your code.

thank you, your reply is understood..

Thought I would send an answer to your original post, though as you said 'goto' should not be used.

Code:

#include <stdio.h>
#include <math.h>
#include <conio.h>

int main()
{
   int x,y;
   char o,n;
   char ch;
 
   startover:
  
   printf("What do you want to do?\n");
   printf("ADD, SUBTRACT, MULTIPLY OR DEVIDE\n");
   printf("Enter the first letter\n");
   ch = getchar();
    
   printf("Please enter your value\n");
   scanf("%d",&x);
   printf("Please enter your second value\n");
   scanf("%d",&y);
     
    if (ch == 'a') printf("The value is %d\n",x+y);
    if (ch == 'd') printf("The value is %d\n",x/y);
    if (ch == 'm') printf("The value is %d\n",x*y);
    if (ch == 's') printf("The value is %d\n",x-y);
         
    printf("Would you like to go again?\n");
    printf("Press ENTER to go again\n");
    printf("\n");

    rewind(stdin);
    o = getch();
          
    if (o == '\r') goto startover;
          
}

No doubt there may be some reason that rewind(); shouldn't be used, but for this example it works.
Can't see what 'math.h' is needed for.
getch() returns an int of the ASCII value of a key pressed on the keyboard but does not put it to the screen.
o is a char
so you could make o of type int and test for the ASCII value. ie '\r' would be 13.
so
int o;

if(o == 13) goto startover;

Hope this is useful
Dav