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#include <stdlib.h>
#include "shape.h"
struct shape
{
shape_area_t area;
shape_destroy_t destroy;
};
double shape_area(struct shape *shape)
{
return shape->area(shape);
}
void shape_destroy(struct shape *shape)
{
shape->destroy(shape);
}
void shape_init(
struct shape *shape,
shape_area_t area,
shape_destroy_t destroy)
{
shape->area = area;
shape->destroy = destroy;
}
int shape_sizeof()
{
return sizeof(struct shape);
}
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