Test GPIO RASPBERRY B+

//Compilar como gcc -std=c11 -lwiringPi gpio2.c gpio2
//Test Raspberry B+
#include <stdio.h>    // Used for printf() statements
#include <wiringPi.h> // Include WiringPi library!

#define max(array) (sizeof (array)/sizeof(array[0]))//Size
#define MAX_TEMPO 500

//GPIO in raspberry B+
const int IN[]={17,27,22,10,9,11,5,6,13,19,26};//IN
int IN_ANT[max(IN)];//Guarda el estado actual de la IN
const int OUT[]={23,24,25,8,7,12,16,20,21};//OUT

//const int pwmValue = 75; // Use this to set an LED brightness

int main(void)
{
    int tempo;
    int boolean;
    int nLed=0;//Numero de OUT o Led
    int nIn=0;//Numero de IN o boton
    wiringPiSetupGpio(); // Initialize wiringPi -- using Broadcom pin numbers
//Configure inputs
    for (int i=0;i<max(IN);i++){
        pinMode (IN[i],INPUT);//CONFIGURE INPUTS
        //pinMode (IN[i],PUD_DOWN);//Pull down
        pinMode (IN[i],PUD_OFF);
    }
//Configure outputs
    for (int i=0;i<max(OUT);i++){
        pinMode (OUT[i],OUTPUT);//Configure outputs
    }

//Bucle principal no intrusivo no  blocante como los de tipo delay(xxx)
    while(1)
    {
        if (IN_ANT[nIn]!=(digitalRead(IN[nIn])& 0x01)){//Si ha cambiado, la entrada la muestra
            printf ("IN[%d]=%d\n",nIn,(digitalRead(IN[nIn]) & 0x01));
        }
        IN_ANT[nIn]=(digitalRead(IN[nIn]) & 0x01);//Memoria IN.Lee y guarda estado actual


        if (tempo>=MAX_TEMPO){
            boolean ? digitalWrite(OUT [nLed],HIGH ):digitalWrite(OUT[nLed],LOW);
            //printf ("Led[%d]=%d\n",nLed,boolean & 0x01);
            boolean =~boolean;
            tempo=0;//Reset cronometro ...
        }else {tempo++;}

//  printf (" Led[%d]=%d ",nLed,boolean &  0x01);

    nIn++;//Proxima entrada
    if (nIn>=max(IN)){nIn=0;}

    nLed++;//Proximo Led o salida
    if (nLed>=max(OUT)){nLed=0;}

    }
    return 0;
}