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  1. #import <Foundation/Foundation.h>
  2. #import <stdio.h>
  3.  
  4. @interface Animal : NSObject
  5. {
  6.     const char * name;
  7. }
  8. - (void) play;
  9. @end
  10.  
  11. @implementation Animal
  12. - (void) play {}
  13. @end
  14.  
  15. @interface Dog : Animal
  16. - (id) init: (const char *) name;
  17. - (void) play;
  18. @end
  19.  
  20. @implementation Dog
  21. - (id) init: (const char *) value {
  22.     self = [super init];
  23.     if (self != nil) {
  24.         self->name = value;
  25.     }
  26.     return self;
  27. }
  28. - (void) play {
  29.     printf("わんわん！%sだよ\n", name);
  30. }
  31. @end
  32.  
  33. @interface Cat : Animal
  34. {
  35.     int sleep;
  36. }
  37. - (id) init: (const char *) name  flag: (int) sleep;
  38. - (void) play;
  39. @end
  40.  
  41. @implementation Cat
  42. - (id) init: (const char *) value flag: (int) flag  {
  43.     self = [super init];
  44.     if (self != nil) {
  45.         self->name = value;
  46.         self->sleep = flag;
  47.     }
  48.     return self;
  49. }
  50. - (void) play {
  51.     printf("にゃあ！%sだよ\n", name);
  52.     if(sleep == 1) {
  53.         printf("...でも寝る\n");
  54.     }
  55. }
  56. @end
  57.  
  58. int main(int argc, char *argv[]) {
  59.     int i;
  60.     id pets[] = {
  61.         [[Dog alloc] init:"ぽち"],
  62.         [[Cat alloc] init:"たま" flag:1]
  63.     };
  64.  
  65.     for(i = 0; i < (sizeof(pets)/sizeof(pets[0])); i++) {
  66.         [pets[i] play];
  67.     }
  68.  
  69.     for(i = 0; i < (sizeof(pets)/sizeof(pets[0])); i++) {
  70.         [pets[i] release];
  71.     }
  72.     return 0;
  73. }
  74.  
Success #stdin #stdout 0.03s 14184KB
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わんわん！ぽちだよ
にゃあ！たまだよ
...でも寝る
https://ideone.com/lQS0Ii
language:
Objective-C (gcc 8.3)
created:
11 days ago
visibility:
public

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