#include <stdio.h>

#include "itarget.h"

#include "target.h"

static long Target_powerOf2(ITarget*, int);

Target* Target_construct(void* addr)

{

if (addr == NULL) {

return NULL;

}

Target* target = addr;

target->powerOf2 = Target_powerOf2;

return target;

}

void Target_destruct(Target* target)

{

}

long Target_powerOf2(ITarget* itarget, int exp)

{

if (exp < 0) {

fprintf(stderr, "Do not support negative exponent.\n");

return -1;

}

if (exp == 0) {

return 1;

}

long sum = 1;

while (exp--) {

sum <<= 1;

}

return sum;

}