/* Using functions with structures */
#include <stdio.h>
#include <string.h>
typedef struct
{
char name [20];
double diameter;
int moons;
double orbit;
double spin;
} planets_t;
/* structure sent to function */
void
print_planet (planets_t p)
{
printf ("------------------------------------------------------\n");
printf ("%s\n", p.name);
printf ("Diameter: %.1f km\n", p.diameter);
printf ("Number of moons: %d\n", p.moons);
printf ("Time to complete one orbit around the sun: %.1f years\n", p.orbit);
printf ("Time to complete one rotation on the axis: %.1f hours\n", p.spin);
printf ("------------------------------------------------------\n\n");
}
/* structure returned by value */
planets_t
get_planet (void)
{
planets_t pl;
printf ("Enter the planet's name: ");
scanf ("%s", pl.name);
printf ("Enter the planet's diameter in km: ");
scanf ("%lf", &pl.diameter);
printf ("How many moons orbit this planet? ");
scanf ("%d", &pl.moons);
printf ("How many years does it take for this planet to orbit the sun? ");
scanf ("%lf", &pl.orbit);
printf ("How many hours for one rotation around the axis? ");
scanf ("%lf", &pl.spin);
return (pl);
}
int
main (void)
{
planets_t planet, planets[10];
/* filling planet variable */
planet = get_planet ();
/* filling cell 2 of planets array */
planets[2] = get_planet ();
/* displaying record of planet 2 */
print_planet (planets[2]);
/* displaying record of planet variable */
print_planet (planet);
/* copying planet variable into planet 0 */
planets[0] = planet;
/* displaying record of planet 0 */
print_planet (planets[0]);
return(0);
}
