test_example.c

c语言是面向过程的程序语言

/*
 ******************************
 * Object Oriented Programming in C
 *
 * Author: Laurent Deniau, [e-mail]
 *
 * For more information, please see the paper:
 * http://home.cern.ch/ldeniau/html/oopc/oopc.html
 *
 ******************************
 */

#include <stdio.h>

/*
  Example of inheritance in OOPC:
  K --> J --> F
          --> G --> C --> A
                      --> B
          --> H --> D
                --> E --> B
          --> I
*/

#include <example.h>

int
main(void)
{
  t_K *k = K.alloc();

  printf("\nSize of objects:\n");            /* Output on 32-bits machine: */
  printf("sizeof(t_A) = %d\n", sizeof(t_A)); /* sizeof(A) = 4              */
  printf("sizeof(t_B) = %d\n", sizeof(t_B)); /* sizeof(B) = 4              */
  printf("sizeof(t_C) = %d\n", sizeof(t_C)); /* sizeof(C) = 8              */
  printf("sizeof(t_D) = %d\n", sizeof(t_D)); /* sizeof(D) = 4              */
  printf("sizeof(t_E) = %d\n", sizeof(t_E)); /* sizeof(E) = 4              */
  printf("sizeof(t_F) = %d\n", sizeof(t_F)); /* sizeof(F) = 4              */
  printf("sizeof(t_G) = %d\n", sizeof(t_G)); /* sizeof(G) = 8              */
  printf("sizeof(t_H) = %d\n", sizeof(t_H)); /* sizeof(H) = 8              */
  printf("sizeof(t_I) = %d\n", sizeof(t_I)); /* sizeof(I) = 4              */
  printf("sizeof(t_J) = %d\n", sizeof(t_J)); /* sizeof(J) = 24             */
  printf("sizeof(t_K) = %d\n", sizeof(t_K)); /* sizeof(K) = 24             */

  /* returns dynamic_cast<E*>(static_cast<A*>(k)) */
  printf("\nDynamic cast example1:\n");
  ooc_printObjInfo(stdout, dynamic_cast(super(k,J.m.G.m.C.m.A), E));

  /* returns dynamic_cast<A*>(static_cast<E*>(k)) */
  printf("\nDynamic cast example2:\n");
  ooc_printObjInfo(stdout, dynamic_cast(super(k,J.m.H.m.E), A));

  /* returns dynamic_cast<B*>(static_cast<A*>(k)) == NULL
     B appears twice in the class hierarchy
   */
  printf("\nDynamic cast example3:\n");
  ooc_printObjInfo(stdout, dynamic_cast(super(k,J.m.G.m.C.m.A), B));

  /* Not present in C++ equivalent file */
  printf("\nK object description:\n");
  ooc_printObjInfo(stdout, k);

  delete(k);

  DEBUG_DISPMEM(stderr);

  return EXIT_SUCCESS;
}