funcion

#include <math.h>
unsigned char Setbit(unsigned char x, int i){

	unsigned char mask;
	mask = 1;
 	mask = mask <<= i;
	return x | mask;
}

unsigned char IsbitSet(unsigned char x, int i){
	unsigned char mask;
	mask = 1;
	mask = mask << i;
	return x & mask;

}

unsigned char *Initarray(unsigned char *a, unsigned int x){
	a = calloc(x,sizeof(unsigned char));
	return a;
}