printf hex

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

int
main (int argc, char **argv)
{

  char cVar = '\n';
  int iVar1 = 123;
  int iVar2 = -123;
  int iVar3 = 123426789;

  printf ("%x\n", cVar);
  printf ("%X\n", cVar);
  printf ("%02x\n", cVar);
  printf ("%02X\n\n", cVar);

  printf ("%x\n", iVar1);
  printf ("%X\n", iVar1);
  printf ("%08x\n", iVar1);
  printf ("%08X\n\n", iVar1);

  printf ("%x\n", iVar2);
  printf ("%X\n", iVar2);
  printf ("%08x\n", iVar2);
  printf ("%08X\n\n", iVar2);

  printf ("%x\n", iVar3);
  printf ("%X\n", iVar3);
  printf ("%08x\n", iVar3);
  printf ("%08X\n", iVar3);

  return 0;
}

/*
output:

a
A
0a
0A

7b
7B
0000007b
0000007B

ffffff85
FFFFFF85
ffffff85
FFFFFF85

75b57e5
75B57E5
075b57e5
075B57E5

 */