/* Using strtoul */
#include <stdio.h>
#include <stdlib.h>
int main()
{
unsigned long x;
const char *string = "1234567abc";
char *remainderPtr;
x = strtoul ( string, &remainderPtr, 0 );
printf( "%s\"%s\"\n%s%lu\n%s \"%s\"\n%s%lu\n",
"The original string is ", string,
"The converted value is ", x,
"The remainder of the original string is ",
remainderPtr,
"The converted value minus 567 is ", x - 567 );
return 0;
}