#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
typedef struct { short int n[16]; }nro;

void print(nro n)
{
	int i;
	char str[1024];
	short sign[16], num[16];
	mpz_t n1, n2;
	for (i=0; i<15; i++) {
		num[i] = n.n[i];
		sign[i] = 0;
	}
	num[15] = n.n[15] & 0x7FFF;
	sign[15] = n.n[15] & 0x8000;
	mpz_init(n1);
	mpz_init(n2);
	mpz_import(n1, 16, -1, 2, 0, 0, num);
	mpz_import(n2, 16, -1, 2, 0, 0, sign);
	mpz_neg(n2, n2);
	mpz_add(n2, n1, n2);
	mpz_get_str(str, 10, n2);
	printf("Número: %s\n", str);
	mpz_clear(n1);
	mpz_clear(n2);
}


int igual_0(nro num){
	int i;
	for (i = 0; i < 16; ++i)
		if(num.n[i] != 0)
			return 0;
	return 1;
}
int igual_1(nro num){
	int i;
	if(num.n[0] != 1)
		return 0;
	for (i = 1; i < 16; ++i)
		if(num.n[i] != 0)
			return 0;
	return 1;
}
int par(nro num){
	return !(num.n[0] & 1);
}
nro shift_i(nro num){
	int i,final_b,b1 = 0,b2;
	final_b = 1 << (sizeof(short int) * 8 - 1);
	for (i = 0; i < 16; ++i){
		b2 = num.n[i] & final_b ? 1 : 0;
		num.n[i] = num.n[i] << 1;
		num.n[i] |= b1;
		b1 = b2;
	}
	return num;
}
int main(){
	int i;
	nro n;
	for(i = 1; i < 16; ++i)
		n.n[i] = 0;
	n.n[0] = 1 << 15;
	print(n);
	n = shift_i(n);
	print(n);

		return 0;
}