Object Oriented Programming in ANSI C. Basic example showing how OOP can be realized on ANSI C for Figure class.
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 

85 lines
1.3 KiB

#include <stdio.h>
#include "Rhomb.h"
int main (void)
{
unsigned long i = 0;
Figure *fig[3];
static struct point points1[] = {
{
3.1,
2.8
},
{
8.1,
-3.1
},
{
-1.88,
2.11
},
{
3.0,
4.1
},
};
static struct point points2[] = {
{
8.2,
4.2
},
{
1.1,
2.2
},
{
7.7,
5.6
},
{
-12.35,
-8.3
},
{
-11.13,
-1.1
},
{
2.3,
-8.5
},
};
fig[0] = (Figure *) Polygon_new (points2, sizeof (points2) / sizeof (points2[0]));
fig[1] = (Figure *) Rhomb_new (points1);
printf ("Is rhomb square? %d\n", Rhomb_is_square ((Rhomb *) fig[1]));
printf ("Max diag = %f\n", Polygon_max_diag ((Polygon *) fig[0]));
fig[2] = Figure_clone (fig[1]);
printf ("Area = %f\n", Figure_area (fig[2]));
for (i = 0; i < sizeof (fig) / sizeof (Figure *); i++)
{
puts ("---");
printf ("type = %s\n", Figure_type (fig[i]));
Figure_draw (fig[i]);
printf ("area(%lu) = %f\n",
(unsigned long) fig[i],
Figure_area (fig[i]));
}
puts ("---");
/*goto end;
err:
end:*/
for (i = 0; i < sizeof (fig) / sizeof (Figure *); i++)
{
Figure_destroy (fig[i]);
}
return 0;
}