int main(){
// modern unsigned int 8 bits
uint8_t total = SUM + 10;
uint16_t x = 20;
// predefined macros
printf("line: %d\n", __LINE__);
printf("file: %s\n", __FILE__);
printf("date: %s\n", __DATE__);
printf("time: %s\n", __TIME__);
// will print 1, like 1 byte :)
printf("size of total variable is: %lu\n", sizeof(total));
printf("size of x variable is: %lu\n", sizeof(x));
printf("the total is: %d\n", total);
printf ("Biggest of 1, 2, and 3 is %d\n", BIGGEST(1,2,3));
return 0;
}
static void add(char *s1, char *s2)
{
char *a, *b, *c;
int la, lb, len;
int i, j;
int carry;
int add;
a = BIGGEST(s1, s2);
b = SMALLEST(s1, s2);
la = strlen(a);
lb = strlen(b);
len = la + 1;
if (!(c = memset(malloc((len + 1) * sizeof(char)), '0', len)))
return ;
c[len] = 0;
for (i = la - 1, j = lb - 1, carry = 0; i >= IS_NEG(a); --i, --j)
{
if (IS_NEG(a) == IS_NEG(b))
{
add = ALIGN(a, i) + ALIGN(b, j) + carry;
carry = add / 10;
}
else
{
add = ALIGN(a, i) - ALIGN(b, j) - carry;
carry = (add < 0);
add = POS(add);
}
c[i + 1] = ASCII(POS(add % 10));
}
if (IS_NEG(a) && (a != SMALLEST(b, a)
|| IS_NEG(b)))
printf("-");
print_nb(c);
free(c);
}
