Thread: malloc arithmetic??

I am tring to build a program that deals with large numbers of 600+ digits, I know that I could not store these in an integer or even an unsigned long long, so I tried to use malloc() with the following syntax:

Code:

#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>

int main()
{

     int *a = malloc(2048);
          if(a==NULL){exit(EXIT_FAILURE);}

     int *b = malloc(2048);
          if(b==NULL){exit(EXIT_FAILURE);}

     int *c = malloc(2048);
          if(c==NULL){exit(EXIT_FAILURE);}

     scanf("%i", &a);
     scanf("%i", &b);

     c=a/b;     //This is where it fails on compile

     printf("%i /n", c);

     free(a);
     free(b);
     free(c);

     system("PAUSE");
     return 0;
}

The 2048 bits are just a test value, as is the function of the program (just to find out if I can use arithmetic on malloc() variables).

The compiler complains of 'Invalid Operands to 'binary''

Any ideas on how to solve this would be very helpful, I am using Dev C++ with the C compiler function.

Thanks in advance!

Phil

dwks 1: That was a copying mistake, It is correct in the code.

dwks 2: I wondered about that but I have checked again just now and it does work!

Dave_Sinkula: Thanks, I put that term into google and have found the GNU Multiple Precision Arithmetic library, which looks to be exactly what I want!

Thanks Everyone!

Phil