//
//  main.c
//  foo
//
//  Created by Lorenzo Piana on 24/09/2016.
//  Copyright © 2016 Lorenzo Piana. All rights reserved.
//

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

typedef struct { double x ; double y;} point;

void pointShow(point *p){
    printf("%f %f\n", p->x, p->y);

};

void pointDist(point *p, point *pp){

    double Xab = (p->x)-(pp->x);
    double Yab = (p->y)-(pp->y);

    double d = sqrt(pow(Xab, 2) + (pow(Yab, 2)));

    printf("%f\n", d);

};

int pointEq(point *p, point *pp){
    if((p->x == pp->x) && (p->y == pp->y) ){
        return 1;}
        else{
        return 0;

    }


};

typedef struct{
    point p1;
    point p2;
}rect;



int main(int argc, const char * argv[]) {
    point p1;
    point p2;
    point *p;
    point *pp;
    p = &p1;
    pp = &p2;
    p1.x = 0.3;
    p1.y = 0.2;
    p2.x = 0.4;
    p2.y = 0.5;
    pointShow(p);
    pointDist(p, pp);
    pointEq(p, pp);
    rect r1;
    printf("%f\n", r1.p2.x);





    return 0;
}