[Dev-C++] Can I handle 64 bits with unsigned long long int ?

[Roberto R. <rob...@ar...>]

Hi all,

Can I handle 64 bits numbers with unsigned long long ?

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

unsigned long long int D0,D1 ;
        
int main(int argc, char *argv[])
{
  D0 = 0;
  D1 = 0xffffffffffff; /*  I put first unsigned long int, compiler 
alerts about truncated number...) */
  gotoxy(1,9);printf ("Num hexa : ");
  scanf ("%x",&D0); /*can handle whatever up to 32 bits*/
  gotoxy(1,11);printf ("Dec0: %lu\nDec1: %lu\n\n", D0, D1);
 
  getchar();  getchar();
  return 0;
}
/*
Results:

Dec0 : 4294967295 mean ok if I put just up to 0xffffffff  32bits
Dec1 : 0  ??
*/

Why is ever truncated in 32 bits, how can handle long long to get up to 
64 bits numbers ?

Thanks in advance

Roberto