130 lines
2.8 KiB
C
130 lines
2.8 KiB
C
#include <stdlib.h>
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#include "Square.h"
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void Square_constructor (Square *this, double a)
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{
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printf ("Square_constructor (%lu, %f) called\n",
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(unsigned long) this,
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a);
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((Square *) this)->a = a;
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}
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void Square_destructor (Square *this)
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{
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printf ("Square_destructor (%lu) called\n",
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(unsigned long) this);
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}
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void Square_copy (Square *to, Square *from)
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{
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printf ("Square_copy (%lu, %lu) called\n",
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(unsigned long) to,
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(unsigned long) from);
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((Square *) to)->a = ((Square *) from)->a;
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}
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Square* Square_clone (Square *this)
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{
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Square *square = Square_new (0.0);
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printf ("Square_clone (%lu) called\n",
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(unsigned long) this);
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Square_copy (square, this);
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printf ("Square_clone (%lu) returns %lu\n",
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(unsigned long) this,
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(unsigned long) square);
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return square;
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}
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void Square_destroy (Square *this)
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{
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printf ("Square_destroy (%lu) called\n",
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(unsigned long) this);
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free (this);
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}
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const char* Square_type (Square *this)
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{
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static const char *square_type_str = "Square";
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printf ("Square_type (%lu) called\n",
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(unsigned long) this);
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printf ("Square_type (%lu) returns \"%s\"\n",
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(unsigned long) this,
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square_type_str);
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return square_type_str;
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}
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void Square_draw (Square *this)
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{
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printf ("Square_draw (%lu) called\n",
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(unsigned long) this);
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printf ("Drawing Square with %f side\n",
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((Square *) this)->a);
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}
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double Square_area (Square *this)
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{
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double area = ((Square *)this)->a * ((Square *)this)->a;
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printf ("Square_area (%lu) called\n",
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(unsigned long) this);
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printf ("Square_area (%lu) returns %f\n",
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(unsigned long) this,
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area);
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return area;
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}
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void Square_resize (Square *this, double a)
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{
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printf ("Square_resize (%lu, %f) called\n",
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(unsigned long) this,
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a);
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((Square *) this)->a = a;
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}
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double Square_diag_length (Square *this)
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{
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double diag_length = ((Square *)this)->a * 1.41421356;
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printf ("Square_diag_length (%lu) called\n",
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(unsigned long) this);
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printf ("Square_diag_length (%lu) returns %f\n",
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(unsigned long) this,
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diag_length);
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return diag_length;
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}
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/* public */
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Square* Square_new (double a)
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{
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static Square_interface vtable =
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{
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(void* (*) (void *)) Square_clone,
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(void (*) (void *)) Square_destroy,
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(const char* (*) (Figure *)) Square_type,
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(void (*) (Figure *)) Square_draw,
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(double (*) (Figure *)) Square_area,
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Square_resize,
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Square_diag_length
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};
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Square *square = malloc (sizeof (*square));
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Square_constructor (square, a);
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printf ("Square_new (%f) returns %lu\n",
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a,
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(unsigned long) square);
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square->vtable = (Square_interface *) &vtable;
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/*goto end;
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err:
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end:*/
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return square;
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}
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